Three-Phase Isolated High-Power-Factor Rectifier Using Soft-Switched Two-Switch Forward Converter
|
|
- Harold Quentin Armstrong
- 5 years ago
- Views:
Transcription
1 Three-Phase Isolaed High-Power-Facor Recifier Using Sof-Swiched Two-Swich Forward Converer Yungaek Jang, David L. Dillman, and Milan M. Jovanović Power Elecronics Laboraory Dela Producs Corporaion P.O. Box 12173, 5101 Davis Drive Research Triangle Park, NC Absrac A hree-phase, high-power-facor (HPF), sofswiched isolaed recifier is inroduced. The proposed circui employs a disconinuous-volage-mode (DVM) resonan inpu recifier followed by a wo-swich forward converer. In addiion o achieving HPF recificaion, he circui also offers sof swiching of he forward converer swiches. The operaion and performance of he proposed opology were verified on a 3- kw prooype operaing from a hree-phase line-o-line volage of 220 V ± 10%. The experimenal resuls show ha he inpucurren-shaping using he proposed recifier can be performed wih a THD less han 6% over he enire line range and in he load range from full load down o less han 10% of full load. The measured efficiency of he experimenal prooype a full load and nominal line was approximaely 90%. I. INTRODUCTION A hree-phase six-swich recifier followed by an isolaed dc-dc converer is ypically used in hree-phase applicaions ha require high-power-facor (HPF) and galvanic isolaion beween he inpu and oupu [1] [2]. While his approach offers excellen performance, is major drawback is a relaively high cos due o he high number of swiches and complex conrol ha is required o achieve a low inpucurren harmonic recificaion. In cos sensiive applicaions, circuis wih a fewer number of swiches and simpler conrol are preferred. In he pas, several non-isolaed hree-phase single-swich HPF recifiers were inroduced [2]-[10]. Generally, hese single-swich circuis eiher employ a disconinuous-currenmode (DCM) pulse-widh-modulaion (PWM) boos recifier opology [4]-[8], or muli-resonan buck opology [9]-[10]. Whereas he boos recifier implemenaions offer a low componen coun and exhibi high efficiencies, he singleswich muli-resonan non-isolaed buck recifier seem more aracive a high power levels because i exhibis a low THD wih coninuous inpu and oupu currens. The major drawback of he muli-resonan buck converer recifier is he volage sress on he swiching devices. As a resul, he use of his circui has been limied o applicaions wih a relaively low line volage, specifically, o rms line-oline volages 380 V and below [10]. In his paper, he muli-resonan HPF recifier combined wih wo-swich forward converer opology is inroduced. Because he swich volage in he wo-swich forward converer is clamped, his opology exhibis minimal volage sress across semiconducor swiches. For example, for his converer operaing from a 220-V ±10% hree-phase line, he swich volage sress is limied o less han 700 V. In addiion, he converer offers zero-curren swiching (ZCS) of he swiches, which is he preferred operaing mode for IGBT devices. Because all recifiers operae wih zero-volage urn off, he proposed converer exhibis excellen elecromagneic compaibiliy (EMC) performance. I should also be noed ha since he proposed hree-phase HPF fron end provides galvanic isolaion, a downsream regulaor could be a simple non-isolaed buck converer. Finally, since in his variable-frequency conrolled HPF isolaed recifier he oupu power is direcly proporional o he swiching frequency, he pracical minimum swiching frequency imposes a lower limi on he oupu power variaion a a given inpu volage. A echnique ha significanly reduces he swiching frequency range over he enire inpu and load range is also described in his paper. II. 3-φ ISOLATED HPF MULTI-RESONANT ZCS TWO-SWITCH FORWARD RECTIFIER A. Principle of Operaion The circui diagram of he proposed 3-kW, isolaed, HPF, muli-resonan, ZCS wo-swich forward recifier is shown in Fig.1. The primary side consiss of inpu filer inducors L A, L B, and L C, inpu side resonan capaciors C 1 -C 3, inpu V AN L A L B V BN C 2 L C N C 1 C 3 D 1 D 2 D 3 D C1 sandby power supply D 4 D 5 D 6 D C3 TR D C2 C C L R C D D F L F + C F R V D O D Fig. 1. Proposed isolaed hree-phase HPF muli-resonan recifiers employing wo-swich forward converer /07/$ IEEE. 809
2 D 1 D 2 D 3 D C1 D C3 V S S1 1 D F C Y1 C Y2 1 2 i PRI TR L R V DF i LM V B V PRI N 1 L M N 2 D C D D C2 D D i DD C Y3 3 D 4 D 5 D 6 (a) [T -T ] 0 1 Fig. 2. Simplified circui diagram of proposed converer wih reference direcions of volages and currens. recifiers D 1 hrough D 6, swiches and, and he primary winding of ransformer TR. I should be noed ha swich volages are clamped by clamp diodes D C1 -D C3 and clamp capacior C C. The volage across clamp capacior C C is uilized as boh he ransformer rese volage and a dc source for he housekeeping power supply. The oupu side of he circui consiss of he secondary winding of ransformer TR, resonan inducor L R, secondaryside resonan capacior C D, forward diode D F, oupu recifier D D, and oupu filer L F wih C F conneced across load R L. To faciliae he explanaion of he circui operaion, Fig. 2 shows a simplified circui diagram of he circui in Fig. 1. In he simplified circui, -conneced inpu side resonan capaciors C 1 -C 3 in Fig. 1 are convered o a Y-connecion, which is more convenien o describe he operaion. The Y- conneced inpu side resonan capaciors are denoed as C Y1, C Y2, and C Y3 as shown in Fig. 2. Moreover, clamp capacior C C is modeled by volage source, assuming ha he value of capacior C C is large enough ha he volage ripples across he capacior are small compared o is dc volage. Inpu filer inducors L A, L B, and L C are modeled by curren sources,, and, respecively. Also, oupu filer inducor L F is modeled by curren source. Because he inducance of he inpu and oupu filer inducors are large, he curren ripples in he inducors are small compared o heir dc or line frequency currens. In addiion, isolaion ransformer TR is modeled by magneizing inducance L M and an ideal ransformer wih urns raio n=n 1 /N 2, where N 1 is he number of urns for he primary winding and N 2 is he number of urns for he secondary winding. The leakage inducance of ransformer TR is negleced in he model since resonan inducor L R, whose inducance is much larger han he leakage inducance, is conneced in series. Finally in his analysis i is also assumed ha all semiconducor componens have zero impedance in he on sae and infinie impedance in he off sae. To furher faciliae he analysis of operaion, Fig. 3 shows he opological sages of he circui in Fig. 1 during a swiching cycle, whereas Fig. 4 shows is key waveforms. I (b) [T -T ] 1 2 (c) [T -T ] 2 3 (d) [T -T ] 3 4 (e) [T -T ] 4 5 (f) [T -T ] 5 6 Fig. 3(a)-(f). Topological sages of proposed circui. 810
3 (g) [T -T ] 6 7 (h) [T -T ] 7 8 I should be noed ha he peak volages of inpu resonan capaciors C Y1 -C Y3 a =T 1 are proporional o inpu currens,, and. Because inpu resonan capaciors C Y1 -C Y3 operae very close o he coninuous/disconinuous-volagemode boundary (CVM/DVM), heir average volages are proporional o inpu currens,, and. Since he average volage of each inpu resonan capacior is equal o he phase inpu volage, he average volage across inpu inducors L A-C is proporional o he inpu volage. As a resul, he average inducor curren is proporional o he inpu curren and a HPF is achieved. Afer swiches and are closed a =T 1, inpu resonan capaciors C Y1 and C Y2 sar o resonae wih resonan inducor L R hrough ransformer TR as shown in Fig. 3(b). This period ends a =T 2 when he curren of resonan inducor L R reaches oupu curren. During he [T 1 T 3 ] inerval, inpu resonan capaciors C Y1 and C Y2 are discharged by he resonance while inpu resonan capaciors C Y3 is sill linearly charged by inpu curren because diode D 6 is Gae of V S1 T ON T S T OFF (i) [T -T ] Fig. 3(g)-(i). Topological sages of proposed circui. 2 V B should be noed ha he operaion shown in Figs. 3 and 4 is wihin he period when >- >-. The reference direcions of currens and volages ploed in Fig. 4 are shown in Fig. 2. As can be seen from he iming diagram of he conrol signals for swiches and shown in Fig. 4, swiches and of he proposed circui are simulaneously urned on and off. I should be noed ha swich on-ime T ON is consan, whereas, swich off-ime T OFF is modulaed by he conrol circui, leading o a variable swiching frequency. During he ime inerval when swiches and are open, inpu currens,, and flow hrough inpu resonan capaciors C Y1 -C Y3, respecively, as shown in Fig. 3(a). Assuming ha a =T 0, ransformer TR is compleely rese, i.e., magneizing curren i LM (=T 0 )=0, no oher curren is flowing in he circui during he ime inerval from =T 0 unil swiches and are urned on a =T 1. Since inpu currens,, and are consan, he volages across inpu resonan capaciors C Y1 -C Y3 are linearly changed during he [T 0 T 1 ] inerval, as shown in Fig. 4. The slopes of he volage variaions are as follows, dvc1 IAN dvc2 dvc3 ICN =, =, and =. (1) d C d C d C Y1 Y2 Y3 V S1 V PRI D i DD Fig. 4. Key waveforms of proposed circui. 811
4 reverse biased. When capacior volage 2 reaches volage 3 a =T 3, as shown in Fig. 4, inpu resonan capacior C Y3 also resonaes wih resonan inducor L R, as shown Fig. 3(d). Volage V B across he dc side of he inpu bridge recifier is he difference beween resonan capacior volages 1 and 2, as shown in Fig. 4. Afer inpu resonan capaciors C Y1 - C Y3 are compleely discharged a =T 4, resonan inducor curren flows hrough inpu bridge diodes D 1 -D 6, as shown in Fig. 3(e). When he curren of resonan inducor L R reaches zero a =T 5, forward diode D F becomes reverse biased. Afer =T 5, small magneizing curren i LM flows hrough inpu bridge diodes D 1 and D 5 while he majoriy of inpu currens,, and begins charging inpu resonan capaciors C Y1 -C Y3, as shown in Fig. 3(f). A =T 6, swiches and are simulaneously open so ha he magneizing curren flows hrough clamp diodes D C2 and D C3 and sars o rese ransformer TR by clamp volage, as shown in Fig. 3(g). During he [T 6 T 7 ] inerval, swich volage is equal o clamp volage because clamp diode D C2 conducs. I should be noed ha swiches and are urned off when heir curren is only magneizing curren i LM, which is a negligible amoun compared o he resonan curren. During he [T 5 T 7 ] inerval, oupu side resonan capacior C D delivers oupu curren, hence is volage linearly decreases as shown in Fig. 4. When he volage of resonan capacior C D reaches zero a =T 7, oupu diode D D is forward biased and delivers oupu curren. Transformer TR is compleely rese a =T 8, as illusraed in Fig. 4. The volages across inpu resonan capaciors C Y1 -C Y3 are linearly charged during he [T 5 T 9 ] inerval, as shown in Fig. 4. The nex swiching cycle is iniiaed a =T 9 when swiches and are urned on again. B. Normalized Conrol Characerisics To simplify he hree-phase inpu and single-ended oupu circui shown in Fig. 2, one operaing poin a he ime π/2 of he angular line frequency is chosen as described in [9]. A his momen, phase volage V AN is a is peak value, whereas phase volages V BN and N are boh negaive and equal in magniude o one-half of V AN. The simplified single inpu single oupu circui model is derived, as shown in Fig. 5. Diodes D 1 and D 2 of Fig. 5 represen he hree phase inpu bridge diodes. The relaions beween he hree phase inpu circui and normalized quaniies are described approximaely by: (a) C X = C Y 2/3, where resonan capaciors C Y1 -C Y3 have he same values and are represened as C Y, (b) I g = peak phase curren -PEAK, (c) V g = 3/2 imes peak phase volage V AN-PEAK, (d) inpu power P IN = V g I g = 3/2 (V AN-PEAK -PEAK ). The normalizing base quaniies nv O, /n, R O, and f O are defined as: nv O base volage, I B = nv O /R O base curren, I g C X X D 2 n nd C D n 2 D D 2 D 1 S n 2 L R Fig. 5. Simplified single inpu and single oupu circui model of proposed circui in Fig. 3. R O = n L R CX characerisic impedance, f O = π n L RC X base frequency, where V O is he oupu volage of he recifier. Therefore, he normalized values of he inpu and oupu quaniies are: normalized inpu volage M g = V g /(nv O ), normalized inpu curren J g = I g R O /(nv O ), normalized oupu curren J O = R O /(n 2 V O ) = M g J g. Figure 6 shows he inpu characerisic of he converer, i.e., normalized inpu curren J g vs. normalized inpu volage M g, for normalized swiching frequency F = f S /f O as a parameer, as derived in [9] and [10]. Figure 6 is indispensable in deermining he converer s seady-sae operaing poin and design parameers. The shaded area in Fig. 6 is he operaing area for he experimenal 3 kw converer. C. Resonan Componen Design A 3-kW HPF recifier is required o deliver an isolaed 400 V DC oupu from a 3-φ 220 V L-L ±10% inpu. Because he inpu line-o-line volage is 220 V, effecive inpu volage V g-nom = VAN PEAK = = 269.4V, herefore, normalized nominal inpu volage M g(nom) = V g-nom /(nv O )= 269.4/200 = 1.34 when urns raio n=0.5. From Fig. 6, normalized nominal inpu curren J g(nom) is chosen o be 0.72 for he maximum oupu power of 3 kw so ha he selecion of J g(max) =0.8 a low line allows for over a 30% margin from he zero-curren-swiching (ZCS) boundary (J g(zcs) 1.2), ensuring ZCS over he enire inpu-volage range including some ransien condiion. Since a maximum oupu power M g(nom) = 1.34 and J g(nom) = 0.72, normalized full-load frequency F FL-NOM is deermined as F FL-NOM = 0.89, as shown in Fig. 6. Furhermore, because oupu curren = P O /V O = 7.5 A, characerisic impedance is R O = M g(nom) J g(nom) n 2 V O / = 9.5 Ω. If he swiching frequency a full load and nominal line is chosen o be f S(NOM) = 70 khz, hen resonan frequency f O can be calculaed as f O = f S(NOM) /F FL = 70/0.92 = 76 khz. I should be noed ha he maximum swiching frequency is approximaely 75 khz a full load and low line. n 812
5 Mg = Vg/nVo HL, LL LL, LL HL, FL Mg (MAX) M g (NOM) LL, FL M g (MIN) F = 1.3 zero curren swiching boundary f S F = f O Jg = IgRo/nVo Fig. 6. The normalized inpu characerisic of proposed circui in Fig. 6. The normalized frequency F is defined as he raio of he swiching frequency f S and he resonan frequency f O. The shaded area is he operaing area for he experimenal 3 kw converer. The operaing region for his design is indicaed as he shaded area in Fig. 6. Three salien poins which define he operaing region are high-line full-load (HL, FL), nominalline full-load (NL, FL), low-line full-load (LL, FL). The maximum normalized inpu volage M g(max) is 1.47 a inpuvolage of 220 V L-L + 10% and he minimum normalized inpu volage M g(min) is 1.2 a an inpu-volage of 220 V L-L - 10%. The calculaed effecive capaciance C X is C x = 1 (2πR OfO ) = 220 nf, whereas he resonan 2 inducance is L R = R O (2πf On ) = 80 uh. Therefore, inpu-side -conneced resonan capaciors C 1 -C 3 = C X /2 = 110 nf and he value of oupu-side resonan capacior C D is chosen o be C X n 2 = C d = 55 nf. This choice leads o a good compromise beween low volage sress and low inpucurren harmonics. Due o he wide inpu-volage and load ranges, he closedloop conrol of he prooype recifier is implemened by a combinaion of variable- and consan-frequency conrol. The circui frequency is conrolled in he range beween full load and ligh load. In his power range he swiching frequency varies from 75 khz a full load o 20 khz a ligh load. When he swiching frequency falls o 20 khz, he consan frequency PWM conrol akes over o regulae he oupu volage wihou furher decreasing he swiching frequency. When he consan-frequency PWM conrol is acive, he swich operaes wih hard swiching. To minimize swiching loss during he PWM operaion, he swich curren should be minimized. This can be achieved by selecing inpu inducors L A -L C o form a 20-kHz resonan ank circui wih inpu resonan capaciors C 1 -C 3. A he momen when swiches and are urned off, he currens of inpu inducors L A -L C begin o charge inpu resonan capaciors C 1 - C 3 in resonan fashion. Because he resonan frequency and he swiching frequency are nearly he same, he sored energy in inpu resonan capaciors C 1 -C 3 was already decreased o near zero by he resonan currens of inpu inducors L A -L C a he momen when swiches and are urned on again. As a resul, because here is no energy in inpu resonan capaciors C 1 -C 3 o resonae wih resonan inducor L R, he swich curren decreases dramaically a 20- khz operaion, hence swiching losses are minimized even when operaing wih hard-swiching PWM operaion. The value of inpu inducors L A -L C is seleced o be approximaely 300 µh o form a 20-kHz resonan ank circui wih inpu resonan capaciors C 1 -C 3. Since during operaing condiions when he consanfrequency PWM conrol or line and load ransiens are acive and he swiches operae wih hard swiching, he passive clamp circui, shown in Fig. 1, is used o preven any volage overshoo. In fac, if he swich is urned off while a cerain amoun of curren is flowing hrough i, he swich curren is divered hrough diodes D C1 -D C3 and clamping capacior C C. Because he oupu power is low in he consan-frequency PWM conrol mode, he clamping circui operaes wih negligible losses. III. EXPERIMENTAL RESULTS The performance of he proposed isolaed, 3-phase, HPF, resonan, wo-swich forward recifier opology was verified on a 3-kW experimenal prooype operaing a 20 khz o 75- khz swiching frequency and providing 400-V dc oupu volage. A. Componen Selecion To reduce he conducion loss and emperaure of he swiches, wo IGBTs were conneced in parallel for and (Fairchild, FGL60N100, ES = 1000 V, I C90 = 60 A). Because he swiches are punch-hrough (PT) ype IGBTs ha have a negaive hermal feedback characerisic, he parallel operaion of he IGBT provides much beer hermal performance han ha of he single IGBT operaion. A high volage diode from Fairchild (FFAF10U170S, V RRM = 1700 V, I FAVM = 10 A) was employed as secondary side forward diode D F. Because he maximum volage sress across inpu bridge diodes D 1 -D 6 and oupu diode D D is approximaely 700 V, high volage diodes from Fairchild (FFAF10U170S, V RRM = 1000 V, I FAVM = 30 A) were employed. High volage polypropylene capaciors wih values of 100 nf (CDE, 940C20P1K, 2kV, 8.3 A RMS ) and 10 nf (CDE, 940C30S1K, 3kV, 2 A RMS ) were used in parallel for inpuside resonan capaciors C 1 -C 3. Two polypropylene capaciors wih values of 47 nf (CDE, 940C20S47K, 2kV, 5.2 A RMS ) and 10 nf were conneced in parallel and used for oupu-side resonan capacior C D. The oal values of he inpu- and oupu-side resonan capaciors were 110 nf and 57 nf, respecively. 813
6 V GATE-S2 [20 V/div] V IN =200 V L-L THD=5.7% PF=99.8% (a) (a) V S1 [500 V/div] [500 V/div] V IN =220 V L-L THD=4.7% PF=99.8% (b) (b) [20 A/div] V DF [1 kv/div] V IN =242 V L-L THD=3.8% PF=99.8% (c) Fig. 7. Measured hree-phase curren waveforms of experimenal prooype a P O =3 kw and (a) V IN =200 V L-L, (b) V IN =220 V L-L, (c) V IN =242 V L-L,. Time base: 2 ms/div. D [1 kv/div] i PRI (c) The desired inducance of inpu filer inducors L A, L B, and L C was 300 µh for each phase. Two high-flux oroidal cores (Arnold, HF ) were used in parallel o reduce he flux densiy and number of urns of he winding. A magne wire (45 urns, AWG# 13) was used as he inducor winding. The inducance of resonan inducor L R was 80 µh o obain he desired resonan frequency of 76 khz. A se of ferrie EE cores (ETD44/21-3F3, air gap=6 mm) was used. Liz wire (435 srands, AWG# 40, 45 urns) was used o reduce he proximiy effec of he winding. The inducance of oupu filer inducor L F was 900 µh. A se of ferrie EE cores (E65/32/27-3C94, air gap=40 mils) was used. A solid magne wire (50 urns, AWG# 12) was used because he proximiy effec in he oupu filer inducor was negligible. V B [500 V/div] V PRI [1 kv/div] (d) Fig. 8. Measured waveforms of experimenal prooype a V IN =220 V L- L, V O =400 V DC, and P O =3 kw. Time base: 5 µs/div. Finally, wo ses of EE cores (E80/38/20-3C94, air gap=1 mil) were used in parallel o consruc isolaion ransformer TR. Two Liz wires (435 srands, AWG# 40, 22 urns) conneced in parallel were used as he primary winding and a 814
7 Fig Liz wire (435 srands, AWG# 40, 44 urns) was used as he secondary winding of he ransformer. B. Measured Resuls Figures 7(a) 7(c) show he measured waveforms of he inpu line curren delivering 3 kw a prooype recifier s hree inpu volages: V IN = 200 V, 220 V, and 242 V. Resuls demonsrae oal-harmonic-disorion (THD) of less han 6% a full oupu power and less han 5% THD a 50% oupu power. The recifier efficiency is approximaely 91% a 50% load and approximaely 90% a full load and nominal line. Figures 8(a)-8(d) show he measured waveforms of key componens. All he measured waveforms in Fig. 8 have he same ime scale and aligned o he equal rigger momen. Figure 8(a) shows he measured gae-o-source volage of swich which is idenical o he gae-o-source volage of swich and he measured volage waveforms of inpu resonan capaciors C 1 -C 3. Figure 8(b) shows he measured curren waveform of swich and he drain-o-source volage waveforms of swiches and. As shown in Fig. 8(b), he measured volage sresses of he swiches are well below he employed IGBT s nominal volage raing (1 kv). Figure 8(c) shows he measured curren waveform of resonan inducor L R, volage waveforms across forward diode D F and oupu resonan capacior C D. Figure 8(d) shows he curren and volage waveforms of primary winding of ransformer TR and volage waveform of V B. As shown in (a) (b) Measured waveforms of experimenal prooype delivering (a) P O =3 kw a f S =67 khz and (b) P O =200W a f S =23 khz and V IN =220 V L-L. Time base: 10 µs/div. Fig. 8(c), he volage across forward diode D F is well clamped o 1 kv, which is also well below he device raing of 1.7 kv. Finally, Fig. 9 shows he measured curren waveforms of swich and he volage waveforms of inpu resonan capaciors C 1 -C 3 a full load wih swiching frequency of 67 khz and ligh load wih swiching frequency of 20 khz. The swich curren decreases dramaically a 20-kHz operaion. IV. SUMMARY A hree-phase sof-swiched recifier ha provides galvanic isolaion and auomaically achieves HPF by employing a DVM resonan inpu circui and a wo-swich forward converer has been inroduced. The performance of he proposed opology was verified on a 3-kW prooype operaing from a hree-phase inpu volage of 220 V L-L ± 10%. The experimenal resuls show ha he inpu-currenshaping using he proposed recifier can be performed wih less han 6% THD over boh he enire line range and full load o less han 10% load range. The measured efficiency a full load and nominal line is approximaely 90%. REFERENCES [1] A. R. Prasad, P. D. Ziogas and S. Manias, "An acive power facor correcion echnique for hree-phase diode recifiers," IEEE Power Elecronics Specialiss Conf. (PESC) Record, pp , [2] H. Mao, D. Boroyevich, A. Ravindra, and F. C. Lee, "Analysis and Design of High Frequency Three-phase Boos Recifiers," IEEE Applied Power Elecronics Conf. (APEC) Record, pp , [3] E. H. Ismail and R. W. Erickson, "A single ransisor hree-phase resonan swich for high qualiy recificaion," IEEE Power Elecronics Specialiss Conf. (PESC) Record, pp , [4] L. Simonei, J. Sebasian, and J. Uceda, "Single-Swich Three-Phase Power Facor Under Variable Swiching Frequency and Disconinuous Inpu Curren," IEEE Power Elecronics Specialiss Conf. (PESC) Record, pp , [5] J. W. Kolar, H. Erl, and F. C. Zach, "Space Vecor-Based Analyical Analysis of he Inpu Curren Disorion of A Three-Phase Disconinuous-Mode Boos Recifier Sysem," IEEE Power Elecronics Specialiss Conf. (PESC) Record, pp , [6] Q. Huang and F. C. Lee, "Harmonic Reducion in A Single-Swich, Three-Phase Boos Recifier wih High Order Harmonic Injeced PWM," IEEE Power Elecronics Specialiss Conf. (PESC) Record, pp , [7] J. Sun, N. Frohleke, and H. Grosollen, "Harmonic Reducion Techniques for Single-Swich Three-Phase Boos Recifiers," Conference Record of he 1996 IEEE Indusry Applicaions Sociey Annual Meeing, pp , [8] Y. Jang and M. M. Jovanović, A New Inpu-Volage Feedforward Harmonic-Injecion Technique wih Nonlinear Gain Conrol for Single- Swich, Three-Phase DCM Boos Recifier, IEEE Transacions on Power Elecronics, Vol. 15, no. 2, pp , March [9] Y. Jang and R. W. Erickson, "New single-swich hree-phase high power facor recifiers using muli-resonan zero curren swiching," IEEE Applied Power Elecronics Conf. (APEC) Record, pp , [10] Y. Jang, M. M. Jovanović, Design Consideraions and Performance Evaluaion of a 6-kW, Single-Swich, Three-Phase, High-Power- Facor, Muli-Resonan, Zero-Curren-Swiching Buck Recifier, Inernaional Telecommunicaions Energy Conf. (INTELEC) Record, pp ,
Three-Level TAIPEI Rectifier
Three-Level 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 low-cos,
More informationA New Three-Phase Two-Switch ZVS PFC DCM Boost Rectifier
A New Three-Phase Two-Swich ZVS PFC DCM Boos Recifier Yungaek Jang, Milan M. Jovanović, and Juan M. Ruiz Power Elecronics Laboraory Dela Producs Corporaion 5101 Davis Drive, Research Triangle Park, NC,
More informationThe Single-Stage TAIPEI Rectifier
The Single-Sage 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 hree-phase,
More informationSeries-Resonant Converter with Reduced- Frequency-Range Control
Series-Resonan Converer wih Reduced- Frequency-Range Conrol Yungaek Jang, Milan M. Jovanović, Juan M. Ruiz, and Gang Liu 1, Power Elecronics Laboraory, Dela Producs Corporaion, 511 Davis Drive, Research
More informationA New, Two-Switch, Isolated, Three-Phase AC-DC Converter
A ew, Two-Swich, Isolaed, Three-Phase AC-DC Converer Yungaek Jang, Milan M. Jovanovi, Misha Kumar, and Kuris High Power Elecronics Laboraory Dela Producs Corporaion Research Triangle Park, C, USA Yihua
More informationDesign Considerations and Performance Evaluation of Single-Stage TAIPEI Rectifier for HVDC Distribution Applications
Design Consideraions and Performance Evaluaion of Single-Sage TAIPEI Recifier for HVDC Disribuion Applicaions Yungaek Jang, Milan M. Jovanović, and Juan M. Ruiz Power Elecronics Laboraory Dela Producs
More informationA New Soft-Switched PFC Boost Rectifier with Integrated Flyback Converter for Stand-by Power
A New SofSwiched PFC Boos Recifier wih Inegraed Flyback Converer for Sandby Power Yungaek Jang, Dave L. Dillman, and Milan M. Jovanović Dela Producs Corporaion Power Elecronics Laboraory P.O. Box 273,
More informationAn Improved Zero-Voltage-Transition Technique in a Single-Phase Active Power Factor Correction Circuit
An Improved Zero-lage-Transiion Technique in a Single-Phase Acive Power Facor Correcion Circui Suriya Kaewarsa School of Elecrical Engineering, Rajamangala Universiy of Technology Isan Sakon Nakhon Campus,
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 informationIntegrated Forward Half-Bridge Resonant Inverter as a High-Power-Factor Electronic Ballast
Inegraed Forward Half-Bridge Resonan Inverer as a High-Power-Facor Elecronic Ballas Absrac.- A novel single-sage high-power-facor elecronic ballas obained from he inegraion of a forward dc-o-dc converer
More informationA New ZVS-PWM Full-Bridge Converter
New ZV-PW Full-ridge 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... Yu-ing hang DELT Elecronics
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 informationFamily of Single-Inductor Multi-Output DC-DC Converters
PEDS009 Family of Single-Inducor Muli-Oupu DC-DC Converers Ray-ee in Naional Cheng Kung Universiy No., a-hseuh Road ainan Ciy, aiwan rayleelin@ee.ncku.edu.w Chi-Rung Pan Naional Cheng Kung Universiy No.,
More informationA Bidirectional Three-Phase Push-Pull Converter With Dual Asymmetrical PWM Method
A Bidirecional Three-Phase Push-Pull 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 informationThree-Level TAIPEI Rectifier Analysis of Operation, Design Considerations, and Performance Evaluation
This aricle has been acceped for publicaion in a fuure issue of his journal, bu has no been fully edied. Conen may change prior o final publicaion. Ciaion informaion: DOI.9/TPEL.6.5437, IEEE Transacions
More informationFully Soft-Switched Three-Stage AC-DC Converter
Fully ofwiched Threeage ACDC Converer Yungaek Jang, David L. Dillman, and Milan M. Jovanović Power Elecronics Laboraory Dela Producs Corporaion P.O. Box 12173, 5101 Davis Drive Research Triangle Park,
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 230V-12V RMS. + A1 K B1
More informationA Control Technique for 120Hz DC Output Ripple-Voltage Suppression Using BIFRED with a Small-Sized Energy Storage Capacitor
90 Journal of Power Elecronics, Vol. 5, No. 3, July 005 JPE 5-3-3 A Conrol Technique for 0Hz DC Oupu Ripple-Volage Suppression Using BIFRED wih a Small-Sized Energy Sorage Capacior Jung-Bum Kim, Nam-Ju
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 informationMODELING OF CROSS-REGULATION IN MULTIPLE-OUTPUT FLYBACK CONVERTERS
MODELING OF CROSS-REGULATION IN MULTIPLE-OUTPUT FLYBACK CONVERTERS Dragan Maksimovićand Rober Erickson Colorado Power Elecronics Cener Deparmen of Elecrical and Compuer Engineering Universiy of Colorado,
More informationHF Transformer Based Grid-Connected Inverter Topology for Photovoltaic Systems
1 HF Transformer Based Grid-Conneced 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 informationPulse Train Controlled PCCM Buck-Boost Converter Ming Qina, Fangfang Lib
5h Inernaional Conference on Environmen, Maerials, Chemisry and Power Elecronics (EMCPE 016 Pulse Train Conrolled PCCM Buck-Boos Converer Ming Qina, Fangfang ib School of Elecrical Engineering, Zhengzhou
More informationYungtaek Jang, Milan M. Jovanović, Juan M. Ruiz, Misha Kumar, and Gang Liu 1, /16/$ IEEE 1292
Implemenaion of 3.3-kW Ga-Based DC-DC Converer for EV On-Board Charger wih Series- Resonan Converer ha Employs Combinaion of Variable-Frequency and Delay-Time Conrol ungaek Jang, Milan M. Jovanović, Juan
More informationSoft-Switched Bidirectional Buck-Boost Converters
SofSwiched Bidirecional BuckBoos Converers Yungaek Jang and Milan M. Jovanović Dela Producs Corporaion Power Elecronics aboraory 5101 Davis Drive, Research Triangle Park, NC, USA Absrac A bidirecional
More informationVOLTAGE DOUBLER BOOST RECTIFIER BASED ON THREE-STATE SWITCHING CELL FOR UPS APPLICATIONS
VOLTAGE DOUBLER BOOST RECTIFIER BASED ON THREE-STATE 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. Torrico-Bascopé
More informationLecture 5: DC-DC Conversion
1 / 31 Lecure 5: DC-DC Conversion ELEC-E845 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 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 DC-DC Converer Using Clock- Tree Charge-Recycling in 9nm CMOS wih Inegraed Oupu Filer Mehdi Alimadadi, Samad Sheikhaei,
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: 2278-181 Vol. 3 Issue 5, May - 214 S. K. Agrawal, S.
More informationLight-Load Efficiency Optimization Method
Ligh-Load Efficiency Opimizaion Mehod Yungaek Jang, Milan M. Jovanović, and avid L. illman Power Elecronics Laboraory ela Producs Corporaion P.O. Box 273, 50 avis rive Research Triangle Park, NC 279 Absrac
More informationDesign And Implementation Of Multiple Output Switch Mode Power Supply
Inernaional Journal of Engineering Trends and Technology (IJETT) Volume Issue 0-Oc 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 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 THEE-PHASE AC CHOPPE WITH IGBT s Ovidiu USAU 1, Mihai UCANU, Crisian AGHION, iviu TIGAEU
More informationPhase-Shifting 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 Phase-Shifing Conrol of Double Pulse in Harmonic Eliminaion Wei Peng1, a*, Junhong Zhang1, Jianxin gao1, b, Guangyi i1, c
More informationA Novel Bidirectional DC-DC Converter with Battery Protection
Inernaional Journal of Engineering Research and Developmen e-issn: 2278-067X, p-issn : 2278-800X, www.ijerd.com Volume 5, Issue 1 (November 12), PP. 46-53 A Novel Bidirecional DC-DC Converer wih Baery
More informationLinear PFC regulator for LED lighting with the multi-level structure and low voltage MOSFETs.
Linear PFC regulaor for lighing wih he muli-level srucure and low volage MOSFETs. Yuichi Noge Nagaoka Universiy of Technology Niigaa, Japan noge@sn.nagaokau.ac.jp Jun-ichi Ioh Nagaoka Universiy of Technology
More informationA Comparative Study of Soft-Switched CCM Boost Rectifiers and Interleaved Variable-Frequency DCM Boost Rectifier
A Comparaive udy of ofwiched CCM Boos Recifiers and Inerleaved ariablefrequency CM Boos Recifier Brian T. Irving, Yungaek Jang, and Milan M. Jovanović ela Producs Corporaion Power Elecronics aboraory P.O.
More informationJPE Soon-Kurl Kwon, Bishwajit Saha *, Sang-Pil Mun *, Kazunori Nishimura ** *, *** and Mutsuo Nakaoka. 1. Introduction
18 Journal of Power Elecronics, Vol. 9, No. 1, January 2009 JPE 9-1-2 Series Resonan ZCS- PFM DC-DC Converer using High Frequency Transformer Parasiic Inducive Componens and Lossless Inducive Snubber for
More informationProceedings of International Conference on Mechanical, Electrical and Medical Intelligent System 2017
on Mechanical, Elecrical and Medical Inelligen Sysem 7 Consan On-ime Conrolled Four-phase Buck Converer via Saw-oohwave Circui and is Elemen Sensiiviy Yi Xiong a, Koyo Asaishi b, Nasuko Miki c, Yifei Sun
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 informationMultiple Load-Source Integration in a Multilevel Modular Capacitor Clamped DC-DC Converter Featuring Fault Tolerant Capability
Muliple Load-Source Inegraion in a Mulilevel Modular Capacior Clamped DC-DC Converer Feauring Faul Toleran Capabiliy Faisal H. Khan, Leon M. Tolber The Universiy of Tennessee Elecrical and Compuer Engineering
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 Ben-Yaakov, Member, IEEE Absrac Two approaches of operaing
More informationA COMPARATIVE STUDY OF SINGLE-SWITCH, THREE-PHASE, HIGH-POWER-FACTOR RECTIFIERS
A OMPAATIVE STUDY OF SINGLESWITH, THEEPHASE, HIGHPOWEFATO ETIFIES Yungaek Jang and Milan M. Jovanović DELTA Power Elecronics Lab., Inc. 87 Pra Drive, Suie 4 Blacksburg, VA 46 Absrac Three reephase, singleswich,
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 informationHigh Power Full-Bridge DC-DC Converter using a Center-Tapped Transformer and a Full-Wave Type Rectifier
, pp.267-278 hp://dx.doi.org/10.14257/ijca.2014.7.4.23 High Power Full-Bridge DC-DC Converer using a Cener-Tapped Transformer and a Full-Wave Type Recifier Min-Gi Kim, Geun-Yong Park, Doo-HeeYoo and Gang-YoulJeong
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 informationDesign of a Three-Phase Unity Power Factor Single-Stage Telecom Rectifier
Design of a Three-Phase Uniy Power Facor Single-Sage Telecom Recifier Bünyamin Tamyürek Deparmen of Elecrical Engineering, Eskisehir Osmangazi Universiy, Eskisehir, Turkey bamyurek@ogu.edu.r Absrac This
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.abdel-ghany@guc.edu.eg nroducion Nonlinear operaions on coninuous-valued analog signals are ofen
More informationPower losses in pulsed voltage source inverters/rectifiers with sinusoidal currents
ree-wheeling diode Turn-off 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 New Isolated DC-DC Boost Converter using Three-State Switching Cell
A New Isolaed DCDC Boos nverer using hreesae Swiching Cell René P. orricobascopé (1) Grover V. orricobascopé () Francisco A. A. de Souza (1) Carlos G. C. Branco (3) Cícero M.. Cruz (1) Luiz H. C. Barreo
More informationP. 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 full-cusom design flow. The final score of he exam is no affeced by
More informationBOUNCER CIRCUIT FOR A 120 MW/370 KV SOLID STATE MODULATOR
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, CH-8092 Zurich, Swizerland Email: gerberdo@ehz.ch This
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 informationA ZVS Integrated Single-Input-Dual-Output DC/DC Converter for High Step-up Applications
A ZS Inegraed Single-Inpu-Dual-Oupu / Converer for High Sep-up Applicaions Ming Shang, Suden Member, IEEE, Haoyu Wang, Member, IEEE School of Informaion Science and Technology ShanghaiTech Universiy Shanghai,
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 informationPower Efficient Battery Charger by Using Constant Current/Constant Voltage Controller
Circuis and Sysems, 01, 3, 180-186 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 informationDesign of Power Factor Correction Circuit Using AP1662
Applicaion Noe 075 Design of Power Facor Correcion Circui Using AP66 Prepared by Wang Zhao Kun ysem Engineering Deparmen. nroducion. Produc Feaures The AP66 is an acive power facor conrol C which is designed
More informationA Phase Shift Full Bridge Based Reconfigurable PEV Onboard Charger With Extended ZVS Range and Zero Duty Cycle Loss
A Phase Shif Full Bridge Based Reconfigurable PEV Onboard Charger Wih Exended ZVS Range and Zero Duy Cycle Loss Haoyu Wang, Member, IEEE School of Informaion Science and Technology ShanghaiTech Universiy
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 Curren-fed Sep-up DC/DC Converer for Fuel Cell Applicaions wih Acive Overvolage Clamping Aleksandrs Andreiciks, Riga Technical
More information4D-Interleaving of Isolated ISOP Multi-Cell 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 10-12, 2016 4D-Inerleaving of Isolaed ISOP Muli-Cell Converer Sysems
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 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 n-channel MOSFET Area = 168 l 2 Area Raio = 21:1
More informationM2 3 Introduction to Switching Regulators. 1. What is a switching power supply? 2. What types of switchers are available?
M2 3 Inroducion o Swiching Regulaors Objecive is o answerhe following quesions: 1. Wha is a swiching power supply? 2. Wha ypes of swichers are available? 3. Why is a swicher needed? 4. How does a swicher
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 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): 2349-61 Comparaive Sudy of Feed Forward and SPWM Conrol Technique for DC o DC Dual Acive Bridge
More informationDiodes. Diodes, Page 1
Diodes, Page 1 Diodes V-I Characerisics signal diode Measure he volage-curren characerisic of a sandard signal diode, he 1N914, using he circui shown below. The purpose of he back-o-back power supplies
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 informationAN5028 Application note
Applicaion noe Calculaion of urn-off power losses generaed by an ulrafas diode Inroducion This applicaion noe explains how o calculae urn-off power losses generaed by an ulrafas diode, by aking ino accoun
More informationGaN-HEMT Dynamic ON-state Resistance characterisation and Modelling
GaN-HEMT Dynamic ON-sae 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 informationAn Integrated Three-port DC/DC Converter for High- Voltage Bus Based Photovoltaic Systems
An Inegraed Three-por DC/DC Converer for High- Volage Bus Based Phoovolaic Sysems Junyun Deng, Suden Member, IEEE, Haoyu Wang, Member, IEEE, and Ming Shang School of Informaion Science and Technology ShanghaiTech
More informationA Coupled Inductor Hybrid Quadratic Boost Inverter for DC Microgrid Application
A Coupled Inducor Hybrid Quadraic Boos Inverer for DC Microgrid Applicaion Anish Ahmad, R. K. Singh, and R. Mahany Deparmen of Elecrical Engineering, Indian Insiue of Technology (Banaras Hindu Universiy),Varanasi,India.
More informationIntroduction to Soft Switching
Prof. S. Ben-Yaakov, Fundamenals of PWM Converer [NL_11 1] Inroducion o Sof Swiching Why sof swiching Types of sof swiching Examples Prof. S. Ben-Yaakov, Fundamenals of PWM Converer [NL_11 2] Why Sof Swiching?
More informationSynchronization of single-channel stepper motor drivers reduces noise and interference
hronizaion of single-channel sepper moor drivers reduces noise and inerference n mos applicaions, a non-synchronized operaion causes no problems. However, in some cases he swiching of he wo channels inerfere,
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 informationReliability Improvement of FB inverter in HID Lamp Ballast using UniFET II MOSFET family
Reliabiliy Improvemen of FB inverer in HID Lamp Ballas using UniFET II MOSFET family Won-Seok Kang Sysem & Applicaion Group Fairchild Semiconducor Bucheon, Korea wonseok.kang@fairchildsemi.com Jae-Eul
More informationThe ramp is normally enabled but can be selectively disabled by suitable wiring to an external switch.
Vickers Amplifier Cards Power Amplifiers for Proporional Valves EEA-PAM-56*-A-14 Design EEA-PAM-561-A-14 for use wih valve ypes: KDG5V-5, * and KDG5V-7, 1* series EEA-PAM-568-A-14 for use wih valve ypes:
More informationResearch Article Comparison between Phase-Shift Full-Bridge Converters with Noncoupled and Coupled Current-Doubler Rectifier
The Scienific World Journal Volume 013, ricle I 61896, 11 pages hp://dx.doi.org/10.1155/013/61896 esearch ricle omparison beween Phase-Shif Full-ridge onverers wih Noncoupled and oupled urren-oubler ecifier
More informationLD7516C 08/31/2016. Primary Side Quasi-Resonant Controller. Features. General Description. Applications. Typical Application REV.
REV. 01 General Descripion Primary ide Quasi-Resonan Conroller The is an excellen primary side feedback MO conroller wih CV/CC operaion, inegraed wih several funcions of proecions. I minimizes he componen
More informationUniversity of Alberta
Universiy of Albera Mulilevel Space Vecor PWM for Mulilevel Coupled Inducor Inverers by Behzad Vafakhah A hesis submied o he Faculy of Graduae Sudies and Research in parial fulfillmen of he requiremens
More informationSolid-state Multi-functional Timer
Solid-sae Muli-funcional Timer Eigh operaing modes (H3DE-M) and four operaing modes (H3DE-S) cover a wide range of applicaions. Programmable conac enables he building of a self-holding relay circui (-
More informationDead Zone Compensation Method of H-Bridge Inverter Series Structure
nd Inernaional Conference on Elecrical, Auomaion and Mechanical Engineering (EAME 7) Dead Zone Compensaion Mehod of H-Bridge Inverer Series Srucure Wei Li Insiue of Elecrical Engineering and Informaion
More informationAnalysis ofthe Effects ofduty Cycle Constraints in Multiple-Input Converters for Photovoltaic Applications
Analysis ofhe Effecs ofduy Cycle Consrains in Muliple-Inpu Converers for Phoovolaic Applicaions Junseok Song and Alexis Kwasinski Deparmen ofelecrical and Compuer Engineering The Universiy oftexas a Ausin
More informationBootstrap Gate Driver and Output Filter of An SC-based Multilevel Inverter for Aircraft APU
Asian Power Elecronics Journal, Vol. 9, No. 2, Dec. 215 Boosrap Gae Driver and Oupu Filer o An C-based Mulilevel Inverer or Aircra APU Yuanmao YE,K.W.Eric CHENG, N.C. Cheung Power Elecronics Research Cenre,
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 informationDevelopment of Pulse Width Modulation LED drive
ISSN 23069392, Inernaional Journal of Technology People Developing, Vol. 2, No. 3, DEC. 2012 Developmen of Pulse Widh Modulaion LED drive YuanPiao. Lee 1 ShihKuen. Changchien 2 ChainKuo Technology Universiy,
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 5-9, 3 Novel High Volage Conversion Raio Rainsick / Converers M. Kasper, D. Boris, J.
More informationInterconnection of PV Modules to the Utility Grid Using an Electronic Inverter Circuit
Inerconnecion of PV Modules o he Uiliy Grid Using an Elecronic Inverer Circui DENIZAR CRUZ MARTINS & ROGERS DEMONTI Deparmen of Elecrical Engineering Power Elecronics Insiue Federal Universiy of Sana Caarina
More informationIntroduction to Power Electronics ECEN 4797/5797
Lecure 1: Augus 27, 2012 Inroducion o Power Elecronics ECEN 4797/5797 Rober W. Erickson Universiy of Colorado, Boulder Fall 2012 1 Inroducion o Power Elecronics ECEN 4797/5797 Insrucor: Prof. Bob Erickson
More informationWIDE-RANGE 7-SWITCH FLYING CAPACITOR BASED DC-DC CONVERTER FOR POINT-OF-LOAD APPLICATIONS
WIDE-RANGE 7-SWITCH FLYING CAPACITOR BASED DC-DC CONVERTER FOR POINT-OF-LOAD APPLICATIONS By Parh Jain A hesis submied in conformiy wih he requiremens for he degree of Maser of Applied Science Graduae
More informationAnalysis of SiC MOSFETs under Hard and Soft- Switching
Analysis of SiC MOSFETs under Hard and Sof- Swiching M. R. Ahmed, R. Todd and A. J. Forsyh School of Elecrical and Elecronic Engineering, Power Conversion Group The Universiy of Mancheser Mancheser, U.K.
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 informationConnection. Input II EEx ia IIC without SC red. Composition
Sandsill conroller Oupu: relay Connecion Inpu I EEx ia IIC Inpu II EEx ia IIC 1-channel Conrol circui EEx ia IIC Addiional inpu or roaion direcion deecion or sar-up override 2 relay oupus Inpu requency
More informationA Four Quadrants HF AC Chopper with no Deadtime
Four Quadrans HF hopper wih no Deadime Sam enyaakov,*, Yakir Hadad, and Noam Diamansein Power Elecronics Laboraory, Deparmen of Elecrical and ompuer Engineering engurion Universiy of he Negev, P.O. ox,
More information16.5 ADDITIONAL EXAMPLES
16.5 ADDITIONAL EXAMPLES For reiew purposes, more examples of boh piecewise linear and incremenal analysis are gien in he following subsecions. No new maerial is presened, so readers who do no need addiional
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 informationv GS D 1 i S i L v D + V O + v S i D
2 Buck PWM DC DC Converer 2. Inroducion his chaper sudies he PWM buck swiching-mode converer, ofen referred o as a chopper [ 3]. Analysis is given for boh coninuous conducion mode (CCM) and disconinuous
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 e-journal For Technology And Research-2017
More informationConstant Duty Cycle Sinusoidal Output Inverter with Sine Amplitude Modulated High Frequency Link
Consan Duy Cycle Sinusoidal Oupu Inverer wih Sine Ampliude Modulaed High Frequency Link Gusavo C. Knabben, Dominik Neumayr and Johann W. Kolar Power Elecronic Sysems Laboraory ETH Zurich, Swizerland {knabben,neumayr,kolar}@lem.ee.ehz.ch
More informationSOFT SWITCHING INVERTER POWER SOURCE FOR ARC WELDING
SOFT SWITCHING INVERTER POWER SOURCE FOR ARC WELDING H. Mecke, W. Fischer, F. Werher Oo-von-Guericke-Universiy Magdeburg, Insiue ELE, Germany Absrac. Modern elecronic power sources for arc welding are
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 informationAn Open-Loop Class-D Audio Amplifier with Increased Low-Distortion Output Power and PVT-Insensitive EMI Reduction
Paper 8-6 An Open-Loop Class-D Audio Amplifier wih Increased Low-Disorion Oupu Power and PVT-Insensiive EMI Reducion Shih-Hsiung Chien 1, Li-Te Wu 2, Ssu-Ying Chen 2, Ren-Dau Jan 2, Min-Yung Shih 2, Ching-Tzung
More informationVariation Aware Cross-Talk Aggressor Alignment by Mixed Integer Linear Programming
ariaion Aware Cross-alk Aggressor Alignmen by Mixed Ineger Linear Programming ladimir Zoloov IBM. J. Wason Research Cener, Yorkown Heighs, NY zoloov@us.ibm.com Peer Feldmann D. E. Shaw Research, New York,
More information