BOUNCER CIRCUIT FOR A 120 MW/370 KV SOLID STATE MODULATOR


 Dale George
 1 years ago
 Views:
Transcription
1 BOUNCER CIRCUIT FOR A 120 MW/370 KV SOLID STATE MODULATOR D. Gerber, J. Biela Laboraory for High Power Elecronic Sysems ETH Zurich, Physiksrasse 3, CH8092 Zurich, Swizerland This maerial is posed here wih permission of he IEEE. Such permission of he IEEE does no in any way imply IEEE endorsemen of any of ETH Zürich s producs or services. Inernal or personal use of his maerial is permied. However, permission o reprin/republish his maerial for adverising or promoional purposes or for creaing new collecive works for resale or redisribuion mus be obained from he IEEE by wriing o By choosing o view his documen you agree o all provisions of he copyrigh laws proecing i.
2 BOUNCER CIRCUIT FOR A 120 MW/370 KV SOLID STATE MODULATOR D. Gerber, J. Biela Laboraory for High Power Elecronic Sysems ETH Zurich, Physiksrasse 3, CH8092 Zurich, Swizerland Absrac In his paper, a bouncer circui for a 120 MW/370 kv modulaor is described. The bouncer circui is a wowinding inducor bouncer which reduces he oupu volage droop. The bouncer circui is described and invesigaed in deail. Also, he influence of componen olerances is invesigaed. Finally, he benefi of using a bouncer circui is shown by presening he same modulaor wihou and wih bouncer circui. The amoun of sored energy was reduced by a facor of 3.3 which reduces he overall sysem volume significanly. Load I. INTRODUCTION In applicaion areas as e.g. radar sysems, cancer reamen or paricle acceleraors, more and more pulse modulaors are based on modern solid sae modulaor sysems. These offer he advanages of a variable pulse lengh/ampliude and a higher lifeime of he semiconducor swiches, which decreases he sysem operaion coss. In addiion he solid sae modulaors offer he benefi ha hey can be urned off during he pulse in case of a failure as e.g. shor circui in order o proec he sysem and/or he load (e.g. a klysron). A he PSI in Swizerland a compac and cos effecive Xray free elecron laser faciliy for a wavelengh range of 0.1 o 10 nm is designed [1] (SwissFEL). This laser requires a solid sae modulaor o drive he klysron. The parameers of his modulaor are shown in ab. I. TABLE I SPECIFICATIONS OF THE SOLID STATE MODULATOR FOR SWISSFEL DC link volage 3 kv Oupu Volage 370 kv Oupu Power 120 MW Repeiion Rae 100 Hz Maximum Droop <0.5 % Rise/Fall Time <1 µs Pulse Lengh 3 µs Repeiion Accuracy < 10 5 To achieve a volage droop of he pulse fla op of 0.5 %, he sored energy E Cin has o be 100 imes higher han he pulse energy E p if only a capacior is discharged. This huge amoun of sored energy is a disadvanage as more sored energy always implies a bigger sysem volume and more difficul error handling. The amoun of sored energy and herefore also he sysem volume can be subsanially reduced by bouncer circuis. However, wih he classical RL bouncer in series wih he pulse ransformer high addiional losses are generaed in he considered case up o a few kilowas. A more efficien and compac soluion is obained wih an LC bouncer, which uses an LC resonance for droop compensaion. C in C r S m S r Pulse Generaor Pulse Transformer Acive Rese Circui Bouncer Fig. 1. Schemaic of he modulaor based on a spli core ransformer wih 6 cores, an acive premagneizaion circui as well as a wowinding inducor bouncer. There, an addiional swich is required for saring he oscillaion before he pulse. In [2] an improved wowinding inducor bouncer is presened, which enables o adap he bouncer operaing volage o he blocking volage of available semiconducors. In [2] also a design mehod and an opimizaion procedure for deermining he bouncer parameers is presened. However, in he opimizaion procedure only ideal componens wihou olerances are included and only a limiaion for he peak curren in he bouncer swich is considered. Limiaions of oher componens, as for example he volage raing of he bouncer capacior, are negleced. Therefore, in his paper an improved design and opimizaion procedure is presened and applied o he design of a bouncer circui for he 120 MW/370 kw solid sae modulaor. Firs, he basic schemaic of he modulaor wih bouncer is described in secion II. Aferwards, he bouncer circui is described in deail in secion III and he influence of he differen bouncer parameers on he oupu waveform is discussed in secion IV. Finally, a design mehod for he 120 MW/370 kw solid sae modulaor is presened. II. MODULATOR DESCRIPTION In he following, he hree basic modulaor componens generaor circui, pulse ransformer, bouncer circui as shown in fig. 1 are shorly discussed, because hey are
3 imporan for undersanding he derivaion of he bouncer model. V pri,1 N sek V pri,1 A. Pulse Generaor N pri, 1 N pri, 1 The pulse generaor circui consiss of an inpu capacior C in, which serves as energy sorage, a semiconducor swich S m and he premagneizaion circui (S r and C r ). The considered modulaor wih he specificaions in ab. I is based on 12 such generaor circuis, which are conneced o he primary windings of he pulse ransformer as discussed below. Since he volage V pri on he ransformer primary side is unipolar during he pulse, a premagneizaion circui is required o achieve a symmerical flux swing in he ransformer core and fully uilize he ransformer core. Furher deails on he operaion principle of he acive rese circui is given in [3]. B. Spli Core Pulse Transformer The pulse ransformer is a key elemen of he modulaor since i significanly influences he pulse shape and enables o adap he inpu volage o he blocking volage of semiconducor swiches. Addiionally, a single semiconducor swich is no capable o provide sufficien oupu power, so ha a series and/or a parallel connecion of swiches is necessary. In case of a series connecion, he balancing of he swich volage mus be guaraneed, and in case of a parallel connecion, he currens hrough he swiches mus be equally disribued. By uilizing a spli core/marix ransformer hese problems can be solved, since such a ransformer provides inheren curren balancing beween swiches conneced o windings on differen cores, e.g. N pri,1 and N pri,n (cf. fig. 3) as explained in [5]. The curren beween he pair of swiches conneced o he same core is no inherenly balanced. To achieve he curren balancing for hese pairs of swiches, an acive gae conrol can be used as described in [4]. C. Bouncer Circui The bouncer circui is basically an LC resonan circui, which could be eiher placed on he primary side or on he secondary side of he pulse ransformer. If he bouncer V Cr V Cc0 Fig. 2. V ou Oupu volage during one pulse cycle. S r S b S m V pri,n N pri, n N pri, n V sek V pri,n Fig. 3. Splicore/marixransformer wih n cores, 2 primary windings per core and 2 parallel conneced secondary windings. is placed on he primary side, he curren hrough he swich of he bouncer mus be higher han he curren hrough he main swich during he pulse. On he oher hand, for a bouncer on he secondary side, he curren hrough he bouncer swich is lower han for a bouncer on he primary side, bu he swich volage is much higher. In boh cases, he design and he maximum volage droop, ha can be compensaed, could be significanly limied by he semiconducors which are available. For his reason in [2], a wo winding inducor bouncer is presened, where he bouncer inducance is replaced by a wowinding inducor, which is basically a ransformer where he magneizing inducance is used as an inducor. A furher degree of freedom is available wih he urns raio in he bouncer design process, ha enables o use a single semiconducor swich for he bouncer because he bouncer operaing volage and curren can be adjused o available swiches. III. BOUNCER CIRCUIT OPERATION To explain he operaion of a bouncer circui, he marixransformer is firs simplified o a ransformer wih one core and one primary/secondary winding. Then, he componens of he generaor and he bouncer are ransformed o he secondary side as shown in fig. 4. The premagneizaion circui is no included in he model as i does no influence he basic operaion of he bouncer if he premagneizaion is properly designed. In he following, he resonan ransiion of he bouncer is spli ino hree ime inervals T 1 o T 3 refer also o he waveforms in fig. 5 and 6. a) T 1 : A he beginning of a pulse cycle, he wo capaciors C in and C c are charged o V Cin0 and V Cc0 and boh swiches are open. To iniialize he pulse cycle, he bouncer swich S b is closed, so ha capacior C c sars o discharge and he curren i Lc in he bouncer inducor L c rises. b) T 2 : A he beginning of T 2, swich S m is closed and he load curren sars o flow. The load curren has o flow hrough capacior C c because he curren in he bouncer inducance has o be coninuous. The volage across he bouncer capacior sill drops as long as he load curren is smaller han he curren hrough he bouncer inducance. Because he oupu pulse is cenered around T B 4, where T B is he period of one resonan ransiion of he bouncer circui, he volage of he bouncer capacior swings from a posiive volage o a negaive volage wih applying he same peak value. Since, v ou () = v Cin () + v Cc (), he volage across he load v ou () is reduced by he bouncer a he beginning of he pulse and raised a he end of he
4 i in V Cin0 C in i in S m S b v ou R l R l V Cin0 C in i Cc i Lc V Cc0 C c v Lc L c i Cc V Cc0 C c Modulaor wih Marix Transformer and TwoWinding Inducor Bouncer Circui wih simplified Marix Transformer Simplified Circui wihou Galvanic Insulaion, Values refered o Secondary Side Fig. 4. Simplificaion of he modulaor firs he marix ransformer is replaced a ransformer wih a single core and hen all componens are ransferred o he secondary side of he ransformer. pulse. This resuls in a more or less consan volage across he load during he pulse. c) T 3 : A he beginning of T 3, he main swich S m is opened, so ha he bouncer is a pure parallel LC resonan circui again. The bouncer capacior volage swings back o a volage close o is iniial volage a he beginning of he pulse. A his poin, swich S b is urned off o sop he oscillaion a he zero crossing of he bouncer curren. i Cc() = C c dv Cc () v Lc() = L di Lc () c v Lc() = v Cc() i Cc() = i Lc() (1a) wih he iniial condiions: v Cc(0) = V Cc0 i Lc(0) = 0 (1b) V Cc0 Tp/2 T B i Lc i Cc v Cc For he second ime inerval, boh swiches are closed. The iniial condiions are given by he soluion a = 1 of he differenial equaion sysem for he ime inerval T 1. T/4 T/2 0 T 1 1 T 2 2 T 3 Fig. 5. Volage and curren waveforms of bouncer circui shown in fig. 4. Bouncer Model: The bouncer circui can be described wih hree simple differenial equaion sysems, one for each of he hree ime inervals T 1 o T 3. During ime inerval T 1, swich S m is opened and swich S b is closed. Capacior C c is charged o V Cc0 and here is no curren flowing hrough he bouncer inducor L c. Therefore, he equaion sysem is: Droop wih Bouncer 3 Droop wihou Bouncer i Cc() = C c dv Cc () v Lc() = L c di Lc () i in() = v ou() R l i in() = C Cin dv Cin () i Cc() = i in i Lc() v Cin() = v ou () + v Lc() v Lc() = v Cc() (2a) wih he iniial condiions: v Cc( 1 ) = V Cc1 v Cin( 1 ) = V Cin1 = V Cin0 i Lc( 1 ) = I Lc1 (2b) The equaion sysem during T 3 is basically he same as for T 1, bu he iniial condiions are given by he soluion of he differenial equaions a he end of T 2 : Fig. 6. Oupu Volage wihou Bouncer Oupu Volage wih Bouncer Oupu waveform wih bouncer circui. i Cc() = C c dv Cc () v Lc() = L c di Lc () v Lc() = v Cc() i Cc() = i Lc() (3a)
5 wih he iniial condiions: v Cc( 2 ) = V Cc2 i Lc( 2 ) = I Lc2 (3b) The algorihm for calculaing he waveforms and he droop of he pulse is graphically described in fig. 7a. Iniial Condiions 1b Iniial Condiions 2b Iniial Condiions 3b 0 < 1 Equaions 1a 1 <2 Equaions 2a 2 <3 Equaions 3a Droop (a) Calculaion of he bouncer response. Fig. 7. Se C c Opimize L c for min =0.5% wih 2π L c C c 2T p Opimize L c for =0.5% and V Cc0 = V Cc0,max Opimize L c for =0.5% and I Cc,peak = I Cc,max L c,min L c,max,vcc L c,max,icc (b) Calculaion of circui value limiaions. Algorihms used for calculaions. IV. BOUNCER PARAMETERS The wowinding inducor bouncer has four degrees of freedom: Bouncer capaciance C b, bouncer inducance L c, iniial bouncer volage V Cc0 and urns raio of he wowinding inducor (bouncer ransformer). The urns raio is only used o adjus he curren and volage of he bouncer o values suiable for semiconducor swiches a he end of he design process. Therefore, in a firs sep, all componens are ransferred o he secondary side of bouncer ransformer and he bouncer ransformer is replaced by an equivalen inducor in order o simplify he calculaions. The urns raio is only considered when he componen limiaions are aken ino accoun as discussed laer in deail. A. Iniial Bouncer Capacior Volage The pulse droop is compensaed wih he bouncer capacior volage. The iniial value V Cc0 deermines he ampliudes of v Cc and i Lc for a given se of componen values. If V Cc0 is se oo low, v Cc is oo small a = 1 and he oupu volage is no reduced enough by he bouncer. Therefore, he droop compensaion is oo small (undercompensaed). If he iniial capacior volage is se oo high, v Cc is oo high a = 1 and he bouncer compensaes more droop han necessary (overcompensaed). Consequenly, here is an opimal volage V Cc0 o achieve exacly he argeed droop as can be seen in fig. 8. The opimal V Cc0 resuls in a minimum amoun of sored energy if i is in he undercompensaed region. B. Bouncer Capacior For considering he influence of he bouncer capaciance value on he droop, i is ineresing o fix he inducance value and calculae he opimal iniial capacior volage for he considered bouncer capaciance. For such a case, he droop of he oupu pulse is shown in fig. 9. The volage droop is becoming smaller and smaller wih increasing capaciance values. The reason is ha he minimum droop is given by he ripple of he capacior volage v Cc during he pulse. By increasing C c he resonan period T B of he LCbouncer increases, so ha he volage drop across C c during he oupu pulse becomes more and more linear. However, he peak ampliude of he bouncer curren increases also wih C c and he bouncer componens/swiches mus be designed for his curren. In fig. 9 also he opimal V Cc0 is given, which has a clear minimum. For large values of C c, a high iniial volage V Cc0 is required, since he resonan curren in he bouncer mus increase in order o obain a sufficien change of v Cc during he pulse. For small C c values also V Cc0 mus increase o obain a high enough ampliude of i Lc, so ha he influence of he load curren, which flows also hrough C c, is compensaed. Droop (%) Cc' (F) (a) VCc0' (kv) Cc' (F) 106 (b) Fig. 9. Minimum droop (a) and iniial capacior volage (b) depending on bouncer capacior value C c for C in = 121 nf and L c = 10 µh. C. Bouncer Inducor The influence of he bouncer inducance value L c is similar o he influence of he bouncer capaciance value. Again, he iniial capacior volage has o be increased for an increasing L c o ge a high enough capacior curren. A bigger inducance also resuls in a longer period which reduces he minimum droop. D. Componen Tolerances Droop (%) Undercompensaed Overcompensaed V Cc0 (V) Fig. 8. Droop as a funcion of V Cc0 for C in = 121 nf, C c = 1 µf, L c = 1 µh. Besides he componen values hemselves, also he olerances of he values influence he achievable droop if he iniial condiions and/or he poin of ime, when S b is swiched, is adaped o he modified componen values. In wors case, he droop requiremens migh no be me because he real circui values are no he same as he calculaed ones. Therefore, he componen olerances mus be aken ino accoun during he design process, o make sure ha he maximum droop is always below he maximum allowed one.
6 V. BOUNCER DESIGN Based on he bouncer operaion and he influence of he bouncer parameers explained in he previous secion, he influence of circui limiaions is discussed and a design sraegy is presened in he following. A. Design Consrains Besides he droop requiremens, also some design consrains mus be considered. Firs, he resonance frequency of he bouncer circui mus mee he following crieria, because he oupu pulse is cenered around T B 4. T B 4 > T p 2 T B > 2 T p, (4) where T B = 1/f B is he period of he LC bouncer and T p is he lengh of he oupu pulse including rise and fall ime. Second, he maximum allowed volage V Cc0 is limied by he klysron load, because he klysron usually has a maximal allowed reverse volage, which mus no be exceeded. Since he bouncer volage swings from V Cc0 o V Cc0 and back o V Cc0, he iniial volage V Cc0 mus be smaller han he maximum allowed klysron inverse beam volage. In he considered case, he premagneizaion also resuls in a negaive oupu volage. I has o be operaed in such a way, ha he resuling volage on he secondary side is half of he maximum inverse beam volage o achieve he maximum possible bouncer oupu volage swing (cf. fig 2). Therefore, he maximum V Cc0 is half of he maximum inverse beam volage. Third, he bouncer semiconducor swich limis he maximum bouncer volage/curren. Wih he urns raio of he bouncer ransformer, he peak volage/curren can be adaped o o he swich, however, he produc volage curren mus be kep below he limis of he swich. In he considered sysem a presspack IGBT is used, which has a maximum blocking volage of 3 kv and a maximum curren of 4 ka. B. Design Room Wih he discussed design consrains and he limi for he oupu pulse droop, a design room for he bouncer circui is deermined and only cerain ses L c, C c and V Cc0 will mee hese consrains. The limis of he design room can be calculaed wih opimizaion algorihms like he gradien descen mehod. An example for such an algorihm is shown fig. 7b for a given C in. The resuling curves are shown in fig. 10. For each poin on a specific limiing curve, he droop is exacly he maximum allowed droop and he respecive limiing parameer is also exacly a is limi. During deermining he limiing curves, i has o be assured, ha he bouncer is always in he undercompensaed region. Oherwise, i would be possible o reduce V Cc0 and herefore also he swich curren. This migh lead o a soluion wih he same droop wihou violaing he given limiaions. The design room iself depends on he inpu capaciance C in. For a decreasing C in, he design room is geing smaller. Below a cerain C in, i is no possible o design a bouncer wihou violaing a leas one of he given limiaions. L c (H) Limied by maximum V Cc0 Limied by maximum Swich Curren Limied by minimum Droop Design Room Limied by minimum Resonan Transiion Time C c (F) Fig. 10. Design room for an inpu capaciance C in of 181 nf Because here is no unique soluion, i is possible o opimize he bouncer for various crieria. In [2], i was opimized for minimum volume. Oher opimizaions are possible, like minimum sored energy, minimum bouncer inducor volume or repeiion accuracy. When performing an opimizaion, i has o be aken ino accoun, ha all componens of he bouncer and he pulse generaor have olerances. Such olerances are e.g. componen olerances or jier of he swiches. If he bouncer is opimized for a cerain droop, i migh no always mee he requiremens because of hese olerances. One possibiliy o solve his problem would be o se he maximum allowed droop lower han he required maximum droop. However, he soluion found wih his mehod migh lead o a bouncer which mees he requiremens even wih componen olerances, bu i is no guaraneed ha his is he opimal soluion. A beer way o ake various uncerainies ino accoun is o calculae he wors case droop insead of he ideal droop. There, for a given se of L c, C c and V Cc0 he wors case droop is calculaed by maximizing he droop for he given componen olerances. VI. PROTOTYPE SYSTEM To show he benefis of he bouncer circui and he effec of olerances, a bouncer circui for he 120 MW pulse modulaor wih he specificaions given in ab. I has been designed. In a firs sep, he iniial bouncer capacior volage is adjused o mee he wors case droop requiremens. Then, he iniial capacior volage is calculaed o mee he droop requiremens wih ideal circui elemens and finally, hese wo bouncers are simulaed and compared wih a modulaor wihou bouncer. For illusraing he influence of he olerances, he bouncer circui parameers in he wo righ columns of ab. II are considered. If ideal componens wihou olerances are assumed an iniial capacior volage of 4.27 kv is sufficien for achieving a droop of 0.5 %. However, wih real componens wih olerances of ±10 % he wors case droop becomes 0.77 % (C in = 163 nf, C c = 550 nf, L c = 11 µh). One possible soluion o reduce he wors case droop is seing he iniial capacior volage higher. A a cerain poin, his is no possible anymore because he minimum droop is already reached. In ha case, differen bouncer circui values have o be chosen (e.g a higher L c). In our example, his is forunaely no necessary. By seing he iniial capacior volage V Cc0 o 5.13 kv, he wors case droop is 0.5 % which mees he requiremens. The simulaed waveforms for his bouncer are shown in fig. 11.
7 To show he benefi of a bouncer circui, in ab. II also he componen values for a modulaor wihou bouncer and a droop of 0.5 % are given. There i can be seen, ha he amoun of sored energy (and he sysem volume) is much higher for he sysem wihou bouncer. The specificaions of he wowinding bouncer inducance are given in ab. III. 367' ' ' ' ' '200 V ou (V) 366' ' ' '400 Wors Case Droop Exac Componen Values Δ = 0.21% 365' Time (μs) Δ = 0.5% Fig. 11. Simulaed oupu pulse volage for he parameers given in II. There curves for ideal componens and for wors case droop in case of componen olerances are given. Finally, he effec of he leakage inducance of he wowinding inducor (bouncer ransformer) is invesigaed. Wih his leakage inducance, he load curren mus be coninuous and could no include seps (cf. fig. 5). Based on he specificaions given in ab. II and he design of he bouncer ransformer in ab. III, a simulaion of he circui including an equivalen circui of he bouncer ransformer and he klysron has been performed, which is given in fig. 12. To allow a comparison of he differen waveforms, he ampliudes are normalized. There one can see, ha he leakage inducance only slighly influences he oupu pulse waveform, because i is small compared o he bouncer inducor. The leakage inducance also influences he bouncer resonance frequency. To compensae his effec, he bouncer inducance could be adjused o keep he resonance frequency consan. In his case, his is no necessary. Addiionally, he leakage inducance acs like a volage divider, which is compensaed by adjusing he iniial capacior volage V Cc0. Fig. 12 shows ha he influence of he pulse ransformer is TABLE II COMPARISON OF THREE DIFFERENT BOUNCER CIRCUITS FOR THE SPECIFICATIONS GIVEN IN TABLE I. No Bouncer Wihou Tolerances Wih Tolerances C in 9.6 mf 2.88 mf 2.88 mf C c nf 500nF L c  10 µh 10 µh R l 1075 Ω 1075 Ω 1075 Ω V Cin0 3 kv 3 kv 3 kv V Cc04.2 kv 5.13 kv I Cc,max  1 ka 1.2 ka E Cin 43 kj kj kj E Cc J 6.58 J E oal 43 kj kj kj TABLE III PARAMETERS OF THE TWOWINDING INDUCTOR FOR THE BOUNCER WITH TOLERANCES Core METGLAS AMCC 630 Core Size 90x130x70 mm Number of Primary Turns 4 Number of Secondary Turns 7 Air gap 8.8 mm Leakage Inducance (secondary side referred) 144 nh very srong. The finie rise ime influences he bouncer operaion remarkably. The bouncer operaes wih a relaively low curren compared o he load curren which produces a significanly differen oupu waveform. In he simulaed circui, he droop is even lower in he real sysem. The simulaion also shows, ha he pulse ransformer canno be considered as an ideal ransformer and has o be included in he bouncer design process which will be done in a fuure paper V ou (p.u.) Wih Pulse Transformer Model and Klysron Load Wih Bouncer Inducor Leakage Inducance Ideal Bouncer Inducor Time (μs) Fig. 12. Oupu volages wih leakage inducance. VII. CONCLUSION In his paper, a design and opimizaion procedure for wowinding inducor bouncer circuis is presened. Firs, he basic operaion principle is described and hen he influence of he differen bouncer parameers on he oupu waveform is invesigaed and a new design mehod including circui limiaions and componen olerances is proposed. For validaing he design procedure, resuls for 120 MW/370 kv pulse modulaor wih and wihou bouncer circui are presened and he amoun of required sored energy is calculaed. Furhermore, he influence of he leakage inducance of he bouncer ransformer on he oupu pulse is invesigaed. I was shown ha he pulse ransformer has a large influence on he bouncer operaion and herefore has o be included in he bouncer design process. ACKNOWLEDGMENT The auhors would like o acknowledge he suppor of PPT in relaion o he pracical realizaion of he projec. References [1] A. Oppel e al., Towards a low Emiance Xray FEL a PSI, Proc. of he FreeElecron Laser Conference (FEL), 2007, pp [2] D. Boris, J. Biela and J. W. Kolar, Opimal Design of a TwoWinding Inducor Bouncer Circui, Proc. of he IEEE Inernaional Pulsed Power Conference, 2009, pp [3] D. Boris, J. Biela and J. W. Kolar, Design and Conrol of an Acive Rese Circui for Pulse Transformers, IEEE Transacions on Dielecrics and Elecrical Insulaion, vol. 16, (no. 4), pp , [4] D. Boris, J. Biela and J.W. Kolar, Acive Gae Conrol for Curren Balancing in parallel conneced IGBT Modules in Solid Sae Modulaors, 16 h IEEE Inernaional Pulsed Power Conference (PPC), 2007, pp [5] E. Herber, High Frequency Marix Transformer, Paen US 4,845,606 [Online], July 1989, Available: hp://
P. Bruschi: Project guidelines PSM Project guidelines.
Projec guidelines. 1. Rules for he execuion of he projecs Projecs are opional. Their aim is o improve he sudens knowledge of he basic fullcusom design flow. The final score of he exam is no affeced by
More informationControl and Protection Strategies for Matrix Converters. Control and Protection Strategies for Matrix Converters
Conrol and Proecion Sraegies for Marix Converers Dr. Olaf Simon, Siemens AG, A&D SD E 6, Erlangen Manfred Bruckmann, Siemens AG, A&D SD E 6, Erlangen Conrol and Proecion Sraegies for Marix Converers To
More informationMemorandum on Impulse Winding Tester
Memorandum on Impulse Winding Teser. Esimaion of Inducance by Impulse Response When he volage response is observed afer connecing an elecric charge sored up in he capaciy C o he coil L (including he inside
More informationPulse Train Controlled PCCM BuckBoost Converter Ming Qina, Fangfang Lib
5h Inernaional Conference on Environmen, Maerials, Chemisry and Power Elecronics (EMCPE 016 Pulse Train Conrolled PCCM BuckBoos Converer Ming Qina, Fangfang ib School of Elecrical Engineering, Zhengzhou
More informationInvestigation and Simulation Model Results of High Density Wireless Power Harvesting and Transfer Method
Invesigaion and Simulaion Model Resuls of High Densiy Wireless Power Harvesing and Transfer Mehod Jaber A. Abu Qahouq, Senior Member, IEEE, and Zhigang Dang The Universiy of Alabama Deparmen of Elecrical
More informationEE201 Circuit Theory I Fall
EE1 Circui Theory I 17 Fall 1. Basic Conceps Chaper 1 of Nilsson  3 Hrs. Inroducion, Curren and Volage, Power and Energy. Basic Laws Chaper &3 of Nilsson  6 Hrs. Volage and Curren Sources, Ohm s Law,
More informationA New Voltage Sag and Swell Compensator Switched by Hysteresis Voltage Control Method
Proceedings of he 8h WSEAS Inernaional Conference on ELECTRIC POWER SYSTEMS, HIGH VOLTAGES, ELECTRIC MACHINES (POWER '8) A New Volage Sag and Swell Compensaor Swiched by Hyseresis Volage Conrol Mehod AMIR
More informationMultiple LoadSource Integration in a Multilevel Modular Capacitor Clamped DCDC Converter Featuring Fault Tolerant Capability
Muliple LoadSource Inegraion in a Mulilevel Modular Capacior Clamped DCDC Converer Feauring Faul Toleran Capabiliy Faisal H. Khan, Leon M. Tolber The Universiy of Tennessee Elecrical and Compuer Engineering
More informationISSCC 2007 / SESSION 29 / ANALOG AND POWER MANAGEMENT TECHNIQUES / 29.8
ISSCC 27 / SESSION 29 / ANALOG AND POWER MANAGEMENT TECHNIQUES / 29.8 29.8 A 3GHz Swiching DCDC Converer Using Clock Tree ChargeRecycling in 9nm CMOS wih Inegraed Oupu Filer Mehdi Alimadadi, Samad Sheikhaei,
More informationAn Improved ZeroVoltageTransition Technique in a SinglePhase Active Power Factor Correction Circuit
An Improved ZerolageTransiion Technique in a SinglePhase Acive Power Facor Correcion Circui Suriya Kaewarsa School of Elecrical Engineering, Rajamangala Universiy of Technology Isan Sakon Nakhon Campus,
More informationEE 330 Lecture 24. Amplification with Transistor Circuits Small Signal Modelling
EE 330 Lecure 24 Amplificaion wih Transisor Circuis Small Signal Modelling Review from las ime Area Comparison beween BJT and MOSFET BJT Area = 3600 l 2 nchannel MOSFET Area = 168 l 2 Area Raio = 21:1
More informationHF Transformer Based GridConnected Inverter Topology for Photovoltaic Systems
1 HF Transformer Based GridConneced Inverer Topology for Phoovolaic Sysems Abhiji Kulkarni and Vinod John Deparmen of Elecrical Engineering, IISc Bangalore, India. (abhijik@ee.iisc.erne.in, vjohn@ee.iisc.erne.in)
More informationFamily of SingleInductor MultiOutput DCDC Converters
PEDS009 Family of SingleInducor MuliOupu DCDC Converers Rayee in Naional Cheng Kung Universiy No., ahseuh Road ainan Ciy, aiwan rayleelin@ee.ncku.edu.w ChiRung Pan Naional Cheng Kung Universiy No.,
More informationTable of Contents. 3.0 SMPS Topologies. For Further Research. 3.1 Basic Components. 3.2 Buck (Step Down) 3.3 Boost (Step Up) 3.4 Inverter (Buck/Boost)
Table of Conens 3.0 SMPS Topologies 3.1 Basic Componens 3.2 Buck (Sep Down) 3.3 Boos (Sep Up) 3.4 nverer (Buck/Boos) 3.5 Flyback Converer 3.6 Curren Boosed Boos 3.7 Curren Boosed Buck 3.8 Forward Converer
More informationSynchronization of singlechannel stepper motor drivers reduces noise and interference
hronizaion of singlechannel sepper moor drivers reduces noise and inerference n mos applicaions, a nonsynchronized operaion causes no problems. However, in some cases he swiching of he wo channels inerfere,
More informationA1 K. 12V rms. 230V rms. 2 Full Wave Rectifier. Fig. 2.1: FWR with Transformer. Fig. 2.2: Transformer. Aim: To Design and setup a full wave rectifier.
2 Full Wave Recifier Aim: To Design and seup a full wave recifier. Componens Required: Diode(1N4001)(4),Resisor 10k,Capacior 56uF,Breadboard,Power Supplies and CRO and ransformer 230V12V RMS. + A1 K B1
More informationORDER INFORMATION TO pin 320 ~ 340mV AMC7150DLF
www.addmek.com DESCRIPTI is a PWM power ED driver IC. The driving curren from few milliamps up o 1.5A. I allows high brighness power ED operaing a high efficiency from 4Vdc o 40Vdc. Up o 200KHz exernal
More informationComparative Analysis of the Large and Small Signal Responses of "AC inductor" and "DC inductor" Based Chargers
Comparaive Analysis of he arge and Small Signal Responses of "AC inducor" and "DC inducor" Based Chargers Ilya Zelser, Suden Member, IEEE and Sam BenYaakov, Member, IEEE Absrac Two approaches of operaing
More informationExplanation of Maximum Ratings and Characteristics for Thyristors
8 Explanaion of Maximum Raings and Characerisics for Thyrisors Inroducion Daa shees for s and riacs give vial informaion regarding maximum raings and characerisics of hyrisors. If he maximum raings of
More informationLecture 5: DCDC Conversion
1 / 31 Lecure 5: DCDC Conversion ELECE845 Elecric Drives (5 ECTS) Mikko Rouimo (lecurer), Marko Hinkkanen (slides) Auumn 217 2 / 31 Learning Oucomes Afer his lecure and exercises you will be able o:
More informationAN303 APPLICATION NOTE
AN303 APPLICATION NOTE LATCHING CURRENT INTRODUCTION An imporan problem concerning he uilizaion of componens such as hyrisors or riacs is he holding of he componen in he conducing sae afer he rigger curren
More informationPrimary Side Control SMPS with Integrated MOSFET
General Descripion GG64 is a primary side conrol SMPS wih an inegraed MOSFET. I feaures programmable cable drop compensaion and a peak curren compensaion funcion, PFM echnology, and a CV/CC conrol loop
More informationExperiment 6: Transmission Line Pulse Response
Eperimen 6: Transmission Line Pulse Response Lossless Disribued Neworks When he ime required for a pulse signal o raverse a circui is on he order of he rise or fall ime of he pulse, i is no longer possible
More informationPower Efficient Battery Charger by Using Constant Current/Constant Voltage Controller
Circuis and Sysems, 01, 3, 180186 hp://dx.doi.org/10.436/cs.01.304 Published Online April 01 (hp://www.scirp.org/journal/cs) Power Efficien Baery Charger by Using Consan Curren/Consan olage Conroller
More informationGG6005. General Description. Features. Applications DIP8A Primary Side Control SMPS with Integrated MOSFET
General Descripion GG65 is a primary side conrol PSR SMPS wih an inegraed MOSFET. I feaures a programmable cable drop compensaion funcion, PFM echnology, and a CV/CC conrol loop wih high reliabiliy and
More informationEE 40 Final Project Basic Circuit
EE 0 Spring 2006 Final Projec EE 0 Final Projec Basic Circui Par I: General insrucion 1. The final projec will coun 0% of he lab grading, since i s going o ake lab sessions. All oher individual labs will
More informationAutomatic Power Factor Control Using Pic Microcontroller
IDL  Inernaional Digial Library Of Available a:www.dbpublicaions.org 8 h Naional Conference on Advanced Techniques in Elecrical and Elecronics Engineering Inernaional ejournal For Technology And Research2017
More informationPhaseShifting Control of Double Pulse in Harmonic Elimination Wei Peng1, a*, Junhong Zhang1, Jianxin gao1, b, Guangyi Li1, c
Inernaional Symposium on Mechanical Engineering and Maerial Science (ISMEMS 016 PhaseShifing Conrol of Double Pulse in Harmonic Eliminaion Wei Peng1, a*, Junhong Zhang1, Jianxin gao1, b, Guangyi i1, c
More informationEXPERIMENT #4 AM MODULATOR AND POWER AMPLIFIER
EXPERIMENT #4 AM MODULATOR AND POWER AMPLIFIER INTRODUCTION: Being able o ransmi a radio frequency carrier across space is of no use unless we can place informaion or inelligence upon i. This las ransmier
More informationEXPERIMENT #9 FIBER OPTIC COMMUNICATIONS LINK
EXPERIMENT #9 FIBER OPTIC COMMUNICATIONS LINK INTRODUCTION: Much of daa communicaions is concerned wih sending digial informaion hrough sysems ha normally only pass analog signals. A elephone line is such
More information4DInterleaving of Isolated ISOP MultiCell Converter Systems for Single Phase AC/DC Conversion
2016 IEEE Proceedings of he Conference for Power Elecronics, Inelligen Moion, Power Qualiy (PCIM Europe 2016), Nuremberg, Germany, May 1012, 2016 4DInerleaving of Isolaed ISOP MuliCell Converer Sysems
More informationControl circuit for a SelfOscillating Power Supply (SOPS) TDA8385
FEATURES Bandgap reference generaor Slowsar circuiry Lowloss peak curren sensing Overvolage proecion Hyseresis conrolled sandby funcion Error amplifier wih gain seing Programmable ransfer characer
More informationChapter 1: Introduction
Second ediion ober W. Erickson Dragan Maksimovic Universiy of Colorado, Boulder.. Inroducion o power processing.. Some applicaions of power elecronics.3. Elemens of power elecronics Summary of he course.
More informationDesign And Implementation Of Multiple Output Switch Mode Power Supply
Inernaional Journal of Engineering Trends and Technology (IJETT) Volume Issue 0Oc 0 Design And Implemenaion Of Muliple Oupu Swich Mode Power Supply Ami, Dr. Manoj Kumar Suden of final year B.Tech. E.C.E.,
More informationStudy on the Wide Gap Dielectric Barrier Discharge Device Gaofeng Wang
Sudy on he Wide Gap Dielecric Barrier Discharge Device Gaofeng Wang School of Informaion Engineering, Zhengzhou Universiy, Zhengzhou 450001, China 932167312@qq.com Keywords: DBD; Wide air gap; Plasma body;
More informationProceedings of International Conference on Mechanical, Electrical and Medical Intelligent System 2017
on Mechanical, Elecrical and Medical Inelligen Sysem 7 Consan Onime Conrolled Fourphase Buck Converer via Sawoohwave Circui and is Elemen Sensiiviy Yi Xiong a, Koyo Asaishi b, Nasuko Miki c, Yifei Sun
More informationPRM and VTM Parallel Array Operation
APPLICATION NOTE AN:002 M and V Parallel Array Operaion Joe Aguilar VI Chip Applicaions Engineering Conens Page Inroducion 1 HighLevel Guidelines 1 Sizing he Resisor 4 Arrays of Six or More Ms 5 Sysem
More information10. The Series Resistor and Inductor Circuit
Elecronicsab.nb 1. he Series esisor and Inducor Circui Inroducion he las laboraory involved a resisor, and capacior, C in series wih a baery swich on or off. I was simpler, as a pracical maer, o replace
More information4.5 Biasing in BJT Amplifier Circuits
4/5/011 secion 4_5 Biasing in MOS Amplifier Circuis 1/ 4.5 Biasing in BJT Amplifier Circuis eading Assignmen: 8086 Now le s examine how we C bias MOSFETs amplifiers! f we don bias properly, disorion can
More informationPower losses in pulsed voltage source inverters/rectifiers with sinusoidal currents
reewheeling diode Turnoff power dissipaion: off/d = f s * E off/d (v d, i LL, T j/d ) orward power dissipaion: fw/t = 1 T T 1 v () i () d Neglecing he load curren ripple will resul in: fw/d = i Lavg
More informationA Novel Concept for Transformer Volt Second Balancing of a VIENNA Rectifier III Based on Direct Magnetizing Current Measurement
A Novel Concep for ransformer Vol Second Balancing of a VIENNA Recifier III Based on Direc Magneizing Curren Measuremen Franz Sögerer Johann W. Kolar Uwe Drofenik echnical Universiy Vienna Dep. of Elecrical
More informationInstallation and Operating Instructions for ROBA brakechecker Typ
(B.018102.EN) Guidelines on he Declaraion of Conformiy A conformiy evaluaion has been carried ou for he produc in erms of he EC Low Volage Direcive 2006/95/ EC and EMC Direcive 2004/108/EC. The Declaraion
More informationIntegrated Forward HalfBridge Resonant Inverter as a HighPowerFactor Electronic Ballast
Inegraed Forward HalfBridge Resonan Inverer as a HighPowerFacor Elecronic Ballas Absrac. A novel singlesage highpowerfacor elecronic ballas obained from he inegraion of a forward dcodc converer
More informationGaNHEMT Dynamic ONstate Resistance characterisation and Modelling
GaNHEMT Dynamic ONsae Resisance characerisaion and Modelling Ke Li, Paul Evans, Mark Johnson Power Elecronics, Machine and Conrol group Universiy of Noingham, UK Email: ke.li@noingham.ac.uk, paul.evans@noingham.ac.uk,
More informationSimulation Analysis of DCDC Circuit Based on Simulink in Intelligent Vehicle Terminal
Open Access Library Journal 218, Volume 5, e4682 ISSN Online: 23339721 ISSN Prin: 2333975 Simulai Analysis of DCDC Circui Based Simulink in Inelligen Vehicle erminal Weiran Li, Guoping Yang College
More informationOptimized Modulation of a FourPort Isolated DC DC Converter Formed by Integration of Three Dual Active Bridge Converter Stages
Opimized Modulaion of a FourPor Isolaed DC DC Converer Formed by Inegraion of Three Dual Acive Bridge Converer Sages J. Böhler, F. Krismer, T. Sen and J. W. Kolar Power Elecronic Sysems Laboraory, ETH
More informationInternational Journal of Electronics and Electrical Engineering Vol. 4, No. 2, April Supercapacitors
Inernaional Journal of Elecronics and Elecrical Engineering Vol. 4, No., April 16 Equalizaion Chargers Using Parallel or SeriesParallelResonan Inverer for SeriesConneced Supercapaciors Yifan Zhou and
More information7 th International Conference on DEVELOPMENT AND APPLICATION SYSTEMS S u c e a v a, R o m a n i a, M a y 27 29,
7 h Inernaional Conference on DEVEOPMENT AND APPICATION SYSTEMS S u c e a v a, o m a n i a, M a y 27 29, 2 0 0 4 THEEPHASE AC CHOPPE WITH IGBT s Ovidiu USAU 1, Mihai UCANU, Crisian AGHION, iviu TIGAEU
More informationParameters Affecting Lightning Backflash Over Pattern at 132kV Double Circuit Transmission Lines
Parameers Affecing Lighning Backflash Over Paern a 132kV Double Circui Transmission Lines Dian Najihah Abu Talib 1,a, Ab. Halim Abu Bakar 2,b, Hazlie Mokhlis 1 1 Deparmen of Elecrical Engineering, Faculy
More informationDead Zone Compensation Method of HBridge Inverter Series Structure
nd Inernaional Conference on Elecrical, Auomaion and Mechanical Engineering (EAME 7) Dead Zone Compensaion Mehod of HBridge Inverer Series Srucure Wei Li Insiue of Elecrical Engineering and Informaion
More informationA Control Technique for 120Hz DC Output RippleVoltage Suppression Using BIFRED with a SmallSized Energy Storage Capacitor
90 Journal of Power Elecronics, Vol. 5, No. 3, July 005 JPE 533 A Conrol Technique for 0Hz DC Oupu RippleVolage Suppression Using BIFRED wih a SmallSized Energy Sorage Capacior JungBum Kim, NamJu
More information= f 8 f 2 L C. i C. 8 f C. Q1 open Q2 close (1+D)T DT 2. i C = i L. Figure 2: Typical Waveforms of a StepDown Converter.
Inroducion Oupu Volage ipple in SepDown and SepUp Swiching egulaors Oupu volage ripple is always an imporan performance parameer wih DCDC converers. For inducorbased swiching regulaors, several key
More informationAn offline multiprocessor realtime scheduling algorithm to reduce static energy consumption
An offline muliprocessor realime scheduling algorihm o reduce saic energy consumpion Firs Workshop on HighlyReliable PowerEfficien Embedded Designs Shenzhen, China Vincen Legou, Mahieu Jan, Lauren
More informationAll Silicon Marxbank topology for highvoltage, highfrequency rectangular pulses
All Silicon Marxbank opology for highvolage, highfrequency recangular pulses L.M. Redondo Cenro de Física da Universidade de Lisboa Insiuo Superior de Engenharia de Lisboa Rua Conselheiro Emídio Navarro
More informationComparative Study of Feed Forward and SPWM Control Technique for DC to DC Dual Active Bridge Converter Driving Single Phase Inverter
JRST nernaional Journal for nnovaive Research in Science & Technology Volume 3 ssue 1 June 216 SSN (online): 234961 Comparaive Sudy of Feed Forward and SPWM Conrol Technique for DC o DC Dual Acive Bridge
More informationThreePhase Isolated HighPowerFactor Rectifier Using SoftSwitched TwoSwitch Forward Converter
ThreePhase Isolaed HighPowerFacor Recifier Using SofSwiched TwoSwich Forward Converer Yungaek Jang, David L. Dillman, and Milan M. Jovanović Power Elecronics Laboraory Dela Producs Corporaion P.O.
More informationA Novel Bidirectional DCDC Converter with Battery Protection
Inernaional Journal of Engineering Research and Developmen eissn: 2278067X, pissn : 2278800X, www.ijerd.com Volume 5, Issue 1 (November 12), PP. 4653 A Novel Bidirecional DCDC Converer wih Baery
More informationUniversal microprocessorbased ON/OFF and P programmable controller MS8122A MS8122B
COMPETENCE IN MEASUREMENT Universal microprocessorbased ON/OFF and P programmable conroller MS8122A MS8122B TECHNICAL DESCRIPTION AND INSTRUCTION FOR USE PLOVDIV 2003 1 I. TECHNICAL DATA Analog inpus
More informationHighvoltage highfrequency Marxbank type pulse generator using integrated power semiconductor halfbridges
Highvolage highfrequency Marxbank ype pulse generaor using inegraed power semiconducor halfbridges L.M. Redondo 1,2, J. Fernando Silva 1,3,4, P. Tavares 5, Elmano Margao 1,4 1 Insiuo Superior de Engenharia
More informationA Bidirectional ThreePhase PushPull Converter With Dual Asymmetrical PWM Method
A Bidirecional ThreePhase PushPull Converer Wih Dual Asymmeral PWM Mehod Minho Kwon, Junsung Par, Sewan Choi, IEEE Senior Member Deparmen of Elecral and Informaion Engineering Seoul Naional Universiy
More informationECMA st Edition / June Near Field Communication Wired Interface (NFCWI)
ECMA373 1 s Ediion / June 2006 Near Field Communicaion Wired Inerface (NFCWI) Sandard ECMA373 1 s Ediion / June 2006 Near Field Communicaion Wired Inerface (NFCWI) Ecma Inernaional Rue du Rhône 114
More informationAleksandrs Andreiciks, Riga Technical University, Ingars Steiks, Riga Technical University, Oskars Krievs, Riga Technical University
Scienific Journal of Riga Technical Universiy Power and Elecrical Engineering Currenfed Sepup DC/DC Converer for Fuel Cell Applicaions wih Acive Overvolage Clamping Aleksandrs Andreiciks, Riga Technical
More informationDesign and Development of Zero Voltage Switched Full Bridge 5 kw DC Power Supply
Inernaional Journal of Engineering Research & Technology (IJERT) Design and Developmen of Zero Volage Swiched Full Bridge 5 kw DC Power Supply ISSN: 2278181 Vol. 3 Issue 5, May  214 S. K. Agrawal, S.
More informationSolid State Modulators for PIII Applications
Solid Sae Modulaors for P Applicaions Dr. Marcel P.J. Gaudreau, P.E., Dr. Jeffrey A. Casey, Timohy J. Hawkey, Michael A. Kempkes, J. Michael Mulvaney; Diversified Technologies, nc. Absrac One of he key
More informationTHE OSCILLOSCOPE AND NOISE. Objectives:
26 Preparaory Quesions. Go o he Web page hp://www.ek.com/measuremen/app_noes/xyzs/ and read a leas he firs four subsecions of he secion on Trigger Conrols (which iself is a subsecion of he secion The
More information4 20mA InterfaceIC AM462 for industrial µprocessor applications
Because of he grea number of indusrial buses now available he majoriy of indusrial measuremen echnology applicaions sill calls for he sandard analog curren nework. The reason for his lies in he fac ha
More informationPower Control of Resonant Converter MPPT by Pulse Density Modulation
Power Conrol of Resonan Converer MPPT by Pulse Densiy Modulaion Akif Karafil 1, Harun Ozbay 2, and Selim Oncu 3 1,2 Bilecik Seyh Edebali Universiy, Bilecik, Turkey akif.karafil@bilecik.edu.r, harun.ozbay@bilecik.edu.r
More informationMODELING OF CROSSREGULATION IN MULTIPLEOUTPUT FLYBACK CONVERTERS
MODELING OF CROSSREGULATION IN MULTIPLEOUTPUT FLYBACK CONVERTERS Dragan Maksimovićand Rober Erickson Colorado Power Elecronics Cener Deparmen of Elecrical and Compuer Engineering Universiy of Colorado,
More informationA New ZVSPWM FullBridge Converter
New ZVPW Fullridge onverer Yungaek Jang and ilan. Jovanović Dela Producs orporaion Power Elecronics Laboraory P.O. ox 73, 50 Davis Dr. Research Triangle Park, N 7709, U... Yuing hang DELT Elecronics
More informationCURRENT MODE PWM+PFM CONTROLLER WITH BUILTIN HIGH VOLTAGE MOSFET
CURRENT MODE PWM+PFM CONTROLLER WITH BUILTIN HIGH VOLTAGE MOSFET DESCRIPTION SD6835 is curren mode PWM+PFM conroller used for SMPS wih builin highvolage MOSFET and exernal sense resisor. I feaures low
More informationChapter 2 Introduction: From PhaseLocked Loop to Costas Loop
Chaper 2 Inroducion: From PhaseLocked Loop o Cosas Loop The Cosas loop can be considered an exended version of he phaselocked loop (PLL). The PLL has been invened in 932 by French engineer Henri de Belleszice
More informationActive Filters  1. Active Filters  2
PHY35  Elecronics Laboraory, all Term (K rong) Acie ilers  By combining opamps wih energysorage elemens, circuis can be designed o gie frequencydependen opamp responses Acie filers are hose ha use
More informationA Voltage Doubler Circuit to Extend the Softswitching Range of Dual Active Bridge Converters Qin, Zian; Shen, Yanfeng; Wang, Huai; Blaabjerg, Frede
Aalborg Universie A Volage Doubler Circui o Exend he Sofswiching Range of Dual Acive Bridge Converers Qin, Zian; Shen, Yanfeng; Wang, Huai; Blaabjerg, Frede Published in: Proceedings of he 217 IEEE Applied
More informationApplication Note 5324
Desauraion Faul Deecion Opocoupler Gae Drive Producs wih Feaure: PLJ, PL0J, PLJ, PL1J and HCPLJ Applicaion Noe 1. Inroducion A desauraion faul deecion circui provides proecion for power semiconducor swiches
More informationIndustrial, High Repetition Rate Picosecond Laser
RAPID Indusrial, High Repeiion Rae Picosecond Laser High Power: RAPID is a very cos efficien, compac, diode pumped Nd:YVO4 picosecond laser wih 2 W average power a 1064 nm. Is 10 pspulses have high pulse
More informationBattery powered high output voltage bidirectional flyback converter for cylindrical DEAP actuator
Downloaded from orbi.du.dk on: Oc 11, 218 Baery powered high oupu volage bidirecional flyback converer for cylindrical acuaor Huang, Lina; Thummala, Prasanh; Zhang, Zhe; Andersen, Michael A. E. Published
More informationDevelopment of Temporary Ground Wire Detection Device
Inernaional Journal of Smar Grid and Clean Energy Developmen of Temporary Ground Wire Deecion Device Jing Jiang* and Tao Yu a Elecric Power College, Souh China Universiy of Technology, Guangzhou 5164,
More informationAnalog Circuits EC / EE / IN. For
Analog Circuis For EC / EE / IN By www.hegaeacademy.com Syllabus Syllabus for Analog Circuis Small Signal Equivalen Circuis of Diodes, BJTs, MOSFETs and Analog CMOS. Simple Diode Circuis, Clipping, Clamping,
More informationLecture #7: Discretetime Signals and Sampling
EEL335: DiscreeTime Signals and Sysems Lecure #7: Discreeime Signals and Sampling. Inroducion Lecure #7: Discreeime Signals and Sampling Unlike coninuousime signals, discreeime signals have defined
More informationThreeLevel TAIPEI Rectifier
ThreeLevel TAIPEI Recifier Yungaek Jang, Milan M. Jovanović, and Juan M. Ruiz Power Elecronics Laboraory Dela Producs Corporaion 5101 Davis Drive, Research Triangle Park, C, USA Absrac A new lowcos,
More informationECMA373. Near Field Communication Wired Interface (NFCWI) 2 nd Edition / June Reference number ECMA123:2009
ECMA373 2 nd Ediion / June 2012 Near Field Communicaion Wired Inerface (NFCWI) Reference number ECMA123:2009 Ecma Inernaional 2009 COPYRIGHT PROTECTED DOCUMENT Ecma Inernaional 2012 Conens Page 1 Scope...
More informationIR Receiver Module for Light Barrier Systems
IR Receiver Module for Ligh Barrier Sysems TSSP4..SSXB Vishay Semiconducors DESIGN SUPPORT TOOLS Models Available 3 MECHANICAL DATA Pinning: = OUT, = GND, 3 = V S 7 click logo o ge sared DESCRIPTION The
More informationDimensions. Model Number. Electrical connection emitter. Features. Electrical connection receiver. Product information. Indicators/operating means
OBERSE Dimensions.8.8 ø..75 7.5 6. 5 6.7 4.9 4. 5.9 ø.6 Model Number OBERSE Elecrical connecion emier Thrubeam sensor wih m fixed cable Feaures 45 cable oule for maximum mouning freedom under exremely
More informationCommunication Systems. Department of Electronics and Electrical Engineering
COMM 704: Communicaion Lecure : Analog Mulipliers Dr Mohamed Abd El Ghany Dr. Mohamed Abd El Ghany, Mohamed.abdelghany@guc.edu.eg nroducion Nonlinear operaions on coninuousvalued analog signals are ofen
More informationf t 2cos 2 Modulator Figure 21: DSBSC modulation.
4.5 Ampliude modulaion: AM 4.55. DSBSC ampliude modulaion (which is summarized in Figure 21) is easy o undersand and analyze in boh ime and frequency domains. However, analyical simpliciy is no always
More informationDouble Tangent Sampling Method for Sinusoidal Pulse Width Modulation
Compuaional and Applied Mahemaics Journal 2018; 4(1): 814 hp://www.aasci.org/journal/camj ISS: 23811218 (Prin); ISS: 23811226 (Online) Double Tangen Sampling Mehod for Sinusoidal Pulse Widh Modulaion
More informationTransformer of tgδ on MSP430F1331 single chip microcomputer WANG Han 1 CAI Xinjing 1,XiaoJieping 2,Liu weiqing 2
2nd Inernaional Workshop on Maerials Engineering and ompuer Sciences (IWMES 205 Transformer of gδ on MSP430F33 single chip microcompuer WANG Han AI Xinjing,XiaoJieping 2,Liu weiqing 2 School of elecrical
More informationAN5028 Application note
Applicaion noe Calculaion of urnoff power losses generaed by an ulrafas diode Inroducion This applicaion noe explains how o calculae urnoff power losses generaed by an ulrafas diode, by aking ino accoun
More informationLinear PFC regulator for LED lighting with the multilevel structure and low voltage MOSFETs.
Linear PFC regulaor for lighing wih he mulilevel srucure and low volage MOSFETs. Yuichi Noge Nagaoka Universiy of Technology Niigaa, Japan noge@sn.nagaokau.ac.jp Junichi Ioh Nagaoka Universiy of Technology
More informationCOMBITRON Program Schedule
OMBITRO Program Schedule OMBITRO are supply and acuaor modules for he elecromagne cluches and brakes. As power supply for D or Aside swiching differen singlewave and bridge recifiers as well as rapid
More informationSelfPrecharge in SingleLeg Flying Capacitor Converters
SelfPrecharge in SingleLeg Flying Capacior Converers Seven Thielemans Elecrical Energy, Sysems and Auomaion Deparmen Ghen Universiy (UGen), EESA Ghen, Belgium Email: Seven.Thielemans@UGen.be Alex uderman
More informationVOLTAGE DOUBLER BOOST RECTIFIER BASED ON THREESTATE SWITCHING CELL FOR UPS APPLICATIONS
VOLTAGE DOUBLER BOOST RECTIFIER BASED ON THREESTATE SWITCHING CELL FOR UPS APPLICATIONS Raphael A. da Câmara, Ranoyca N. A. L. Silva, Gusavo A. L. Henn, Paulo P. Praça, Cícero M. T. Cruz, René P. TorricoBascopé
More informationNovel High Voltage Conversion Ratio Rainstick DC/DC Converters
3 IEEE Proceedings of he IEEE Energy Conversion Congress and Exposiion (ECCE USA 3), Denver, Colorado, USA, Sepember 59, 3 Novel High Volage Conversion Raio Rainsick / Converers M. Kasper, D. Boris, J.
More informationECE3204 Microelectronics II Bitar / McNeill. ECE 3204 / Term D2017 Problem Set 7
EE3204 Microelecronics II Biar / McNeill Due: Monday, May 1, 2017 EE 3204 / Term D2017 Problem Se 7 All ex problems from Sedra and Smih, Microelecronic ircuis, 7h ediion. NOTES: Be sure your NAME and
More informationDATA SHEET. 1N914; 1N916 Highspeed diodes DISCRETE SEMICONDUCTORS Sep 03
DISCRETE SEMICONDUCTORS DATA SHEET M3D176 Supersedes daa of April 1996 File under Discree Semiconducors, SC01 1996 Sep 03 FEATURES Hermeically sealed leaded glass SOD27 (DO35) package High swiching speed:
More informationMX6895BETR. 550V Full Bridge Gate Driver INTEGRATED CIRCUITS DIVISION. Features. Description. Applications. Ordering Information
550V Full Bridge Gae Driver INTEGRATED CIRCUITS DIVISION Feaures Full Bridge Gae Driver Inernal High Volage Level Shif Funcion Negaive 550V Lamp Supply Volage 3V o 12V CMOS Logic Compaible 8V o 12V Inpu
More informationProtection Strategies for IGBT Current Source Inverters
Proecion Sraegies for IGBT Curren Source Inverers M. Haberberger 1, F. W. Fuchs 2 1 2 Power Elecronics and Elecrical Drives ChrisianAlbrechsUniversiy Kiel, Germany EMail: 1 mkh@f.unikiel.de, 2 fwf@f.unikiel.de
More informationHow to Shorten First Order Unit Testing Time. Piotr Mróz 1
How o Shoren Firs Order Uni Tesing Time Pior Mróz 1 1 Universiy of Zielona Góra, Faculy of Elecrical Engineering, Compuer Science and Telecommunicaions, ul. Podgórna 5, 65246, Zielona Góra, Poland, phone
More informationThreePhase HighPower and ZeroCurrentSwitching OBC for PlugIn Electric Vehicles
Energies 015, 8, 6676704; doi:10.3390/en807667 Aricle OPEN ACCESS energies ISSN 19961073 www.mdpi.com/journal/energies ThreePhase HighPower and ZeroCurrenSwiching OBC for PlugIn Elecric Vehicles
More informationOptical phase locked loop for transparent intersatellite communications
Opical phase locked loop for ransparen inersaellie communicaions F. Herzog 1, K. Kudielka 2,D.Erni 1 and W. Bächold 1 1 Communicaion Phoonics Group, Laboraory for Elecromagneic Fields and Microwave Elecronics,
More information