High-efficiency of MHz Inverter Constructed from Frequency Multiplying Circuit

Size: px
Start display at page:

Download "High-efficiency of MHz Inverter Constructed from Frequency Multiplying Circuit"

Transcription

1 High-efficiency of MHz Inverter Constructed from Frequency Multilying Circuit Koji Orikawa, Jun-ichi Itoh Deartment of Electrical Engineering Nagaoka University of Technology Nagaoka, Jaan Abstract This aer discusses a verification of an inverter oututs MHz frequency which is over the itching frequency. The roosed inverter consists of a multi-hase inverter using silicon itching devices and multi-core transformers. By the frequency multilying, high itching frequency comared with the outut frequency is not required. Moreover, the series resonance using a leakage inductance of the multi-core transformers and a resonant caacitor is alied in order to achieve sinusoidal outut voltage. A rototye circuit is exerimentally verified and theoretically analyzed in terms of zero voltage itching (ZS). As a result, it is confirmed that the rototye circuit can outut sinusoidal outut voltage of.5 MHz with the itching frequency of 5 khz. In addition, a required dead time for zero voltage itching is theoretically analyzed and exerimentally verified using the rototye circuit. I. INTRODUCTI Recently, high-efficiency high-frequency inverters which outut MHz frequency are increasingly received attentions for alications of lasma generators and wireless ower transfer [-3]. For those alications, voltage with MHz band frequency is required. As one of conventional high frequency inverters, ower linear amlifiers using transistors are used. However, the efficiency of the ower linear amlifier is low in rincile. On the other hand, Class E inverters have been studying because they can achieve very high efficiency due to ZS and zeroderivative itching (ZDS) [4, 5]. In addition, wide band ga semiconductors such as silicon carbide (SiC) and gallm nitride (GaN) are used recently. As a result, increasing its efficiency is accelerating even though the outut frequency is several MHz to several tens of MHz because their itching seed is higher than that of conventional Si devices [6]. In addition, in order to obtain higher efficiency by reducing itching losses, ZS or zero current itching (ZCS) is alied. However, the outut frequency is limited by the itching frequency even though the wide band ga semiconductors are used because their erformance is limited. This aer verifies exerimentally the effect of ZS on the roosed circuit based on the frequency multilying method [7] by measuring the inut ower and the outut ower. The roosed circuit oututs a frequency which is over a itching frequency while other circuit cannot achieve high outut frequency which is over the itching frequency. Therefore, not only wide band ga semiconductors are used but also conventional Si devices can be used in the roosed circuit because the itching frequency is lower than the outut frequency. This aer is organized as follows; first, the rincile of the roosed circuit is described. Then, an oeration of the roosed circuit is theoretically analyzed using an equivalent half-bridge circuit in terms of ZS for high efficiency. Finally, a validity of the condition which achieves ZS is exerimentally verified at series resonant condition by measuring the inut ower and the outut ower. II. PROPOSED CIRCUIT BASED FREQUENCY MUTIPYING METHOD Figure shows the circuit configuration of the roosed circuit in a five-hase inverter model. The rimary side of the multi-core transformer [8] is connected in arallel. A common connection oint of the rimary side of the transformer is connected to the neutral oint of DC link caacitors C dc. On the other hand, the secondary side of the multi-core transformer is connected in series. The resonant caacitor which is used for the series resonance with the leakage inductance of the multi-core transformer is connected to the secondary side of the multi-core transformer. Note that the magnetizing inductance is neglected. Figure shows the rincile the roosed frequency multilying method. In the five hase voltage-tye inverter, each of the voltage hases is shifted by 7 degree and oerated with square wave modulation. As a result, the outut frequency f out is exressed as following f N out f

2 where f is the itching frequency and N is the number of hase in the multi-hase inverter. Therefore, the multi-hase inverter oututs high frequency which is over the itching frequency even though low itching frequency is alied. In addition, cooling is easier because the heat which is generated from the multi-hase inverter can be dissiated for a number of itches. III. C dc C dc o S u S nu u Multi-hase inverter S v S nv PRINCIPE OF ZERO OTAGE SWITCHING This chater describes the rincile of ZS in the roosed circuit for reduction of the itching loss. Fig. 3(a) shows a half bridge equivalent circuit of the roosed circuit. In Fig. 3(a), an uer itch is S. On the other hand, a lower itch is S. A DC link caacitor C dc is assumed to be a voltage source. R is resistance comonents transformed to the rimary side of the multi-core transformer, which includes a wire resistance r and r and a resistance R. is inductance comonents transformed to the rimary side of the multi-core transformer, which includes a leakage inductance l and l. C is an equivalent resonant caacitor. Cr is a resonant caacitor connected to the secondary side of the multi-core transformer. By analyzing the oeration of the roosed circuit, R,, C and C r are exressed by (), (3), (4) and (5) using the turn ratio of the winding in the multi-core transformer n and the resonant frequency f r. R N r () n Rout r N l n (3) l C (4) f r v N C n C N (5) C r S w S nw Fig. 3(b) shows two gate signals of the equivalent circuit with the dead time T d. In this aer, ZS when S is turned on is focused. w S x S nx x S y S ny Outut frequency f out :.5 MHz Switching frequency f : 5 khz Number of hase N: 5 y eakage inductance n=n /N Resonance caacitor l r N N l r C r v uo v vo v wo v xo v yo Figure. Configuration of roosed circuit. Multi-core transformers f out i Nf R v uo v vo v wo v xo v yo / - / / - / / - / / - / / - / / - / 7 deg. T/5 7 deg. 7 deg. 7 deg. Fig. 3(c) and (d) show the gate signals, two corresonding drain-source voltage and the current of a neutral oint of the DC link voltage when hard-itching occurs or ZS is achieved. A. Oeration modes Figure 4 shows oeration modes of the roosed circuit. A condition which achieves ZS is decided by the dead time and circuit arameters. By analyzing Fig. 4, the required dead time T d which achieves ZS is obtained as following. ) Mode I The Mode I is a eriod before the dead time starts. In the Mode I, the itch S is on-state and the itch S is off-state. Note that the current I Sw flows to the S. In this aer, the eriod which the Mode I ends is defined as t=. ) Mode II In the Mode II, the S is turned off and the eriod of the dead time starts. The Mode II is ket until the voltage of arasitic caacitance in S is charged u to the inut voltage or the voltage of the arasitic caacitance in S is discharged to zero. Note that the eriod which the Mode II ends is defined as t=t. Therefore, T d should be longer than T because the arasitic caacitance of drain-source is still charged or discharge until t=t. 3) Mode III First, note that the eriod which the Mode III ends is defined as t=t. The current olarity of the neutral oint of the DC link voltage is changed at t=t. When the dead time T d is shorter than T +T, S is turned on while the drain-source voltage of S is zero. Therefore, ZS is achieved. 4) Mode I If the dead time T d is larger than T +T, the arasitic caacitance of drain-source in S is charged. In this case, S is turned on while the drain-source voltage of S is not zero. Therefore, ZS is not achieved. The required dead time which achieves ZS T d is exressed by (6) using T and T. It is noted that the circuit arameters satisfy (7). T Figure. Princile of frequency multilying.

3 T Td T (6) T R R (7) T C Sin in C 4 in I I C (8) Hard-itching Zero voltage itching S R C i ds S Dead time T d Dead time T d i o =i -i i S (a) S ds ds Dead time T d ds S i o I T T t T t S Fig. 3(c), (d) Mode I II With resonance caacitor (Without resonance caacitor) T III I T +T I II III T I T +T (b) T <T +T <T d T <T d <T +T (a) Half bridge equivalent circuit. (c) Enlarged waveforms at hard-itching. (b) Gate signals with dead-time. (d) Enlarged waveforms at zero voltage itching. Fig. 3. Princile of zero voltage itching. (c) (d) S i ds S i ds S i ds S i ds S i ds S i ds Hard-itching (Fig. 3(c)) Mode I Mode II,III,I Mode Zero voltage itching (Fig. 3(d)) Mode I Mode II,III Mode I, (a) S :On, S :Off. (b) S :Off, S :Off (During dead time) (c) S :Off, S :On Fig. 4. Oeration modes of the roosed circuit.

4 T Tan K (9) R () C in c ( T ) R K () I T where T is the eriod which the Mode II ends, T is the eriod of the Mode III. In other words, At T, the current olarity of equivalent is changed. is the natural angular frequency, K is the coefficient, I T is the current of the equivalent at t=t, c(t ) is the voltage of the equivalent resonant caacitor at t=t. I. EXPERIMENTA RESUTS Secifications of a rototye circuit is as following. The number of hase in the multi-hase inverter N is five. In order to obtain the outut frequency f out of.5 MHz, the itching frequency f is 5 khz. The inut voltage is 48. A resistance is 33.3 which is a non-inductive resistance. A. Oeration waveforms Figure 5 shows the exerimental waveforms at ZS condition. The dead time T d = 97. ns which satisfies (6) is used. From Fig. 5(a), it is confirmed that the voltage is almost sinusoidal waveform due to the series resonance. Fig. 5(b) and (c) show two gate signals, the drain-source voltage of S and the rimary current of the multi-core transformer. From the result, there is no rise of v ds during the dead time because the dead time which satisfies (6) is used. Figure 6 shows the exerimental waveforms at hard- v gs (S ) () v gs (S ) v gs (S ) () v gs (S ) (S,S) (S,S) () () v v i (A) (ns) i (A) (ns) i i (a) oad voltage and current. v gs (S ) () v gs (S ) (a) oad voltage and current. v gs (S ) () v gs (S ) (S,S) (S,S) v ds v ds () () vds 5 (A) (ns) vds 5 (A) (ns) (b) drain-source voltage and rimary current of multi-core transformer. (b) drain-source voltage and rimary current of multi-core transformer. (S,S) v gs (S ) v gs (S ) () (S,S) v gs (S ) v gs (S ) () v ds v ds () () vds 5 (A) (ns) vds 5 (A) (ns) (c) Enlarged waveforms of (b) Figure 5. Exerimental waveforms at ZS (T d=97. ns). (c) Enlarged waveforms of (b) Figure 6. Exerimental waveforms at hard-itching (T d=7.6 ns).

5 itching condition which does not satisfy (6). In Fig. 6, the dead time T d = 7.6 ns. Therefore, hard-itching occurs because v ds is increased during the dead time. From these exeriments, the roosed circuit obtains high efficiency because zero voltage itching is achieved even though the outut frequency is.5 MHz. B. Inut and outut ower measurement Figure 7 shows the measured inut and outut ower of the rototye circuit at low ower when the dead time varies. It is noted that the resistance is constant. The inut and outut ower are the highest at ZS condition because the itching loss is the lowest and dead time is the shortest. On the other hand, at hard-itching condition, the inut ower is decreased with the increasing dead time. In addition, the outut ower is decreased because the itching loss becomes higher. Inut ower Pin (W) Outut ower Pout (W) 5 5 ZS Inut ower P in Fig. 5 Outut ower P out Hard-itching Fig. 6 f : 5 (khz) 5 f out :.5 (MHz) : 48 () Dead time T d (ns) Figure 7. Inut ower and outut ower.. CCUSI This aer described the high-frequency inverter which oututs MHz frequency based on the multilying frequency method. By the frequency multilying, the roosed circuit oututs high frequency which is over the itching frequency. First, the required dead time which achieves ZS was derived by using the equivalent circuit. Finally, the rototye circuit was exerimentally verified. It was confirmed the rototye circuit can outut.5 MHz with the itching frequency of 5 khz at ZS condition. REFERENCES [] H. Fujita, H. Akagi, S. Shinohara: A -MHz 6-kA oltage-source Inverter Using ow-profile MOSFET Modules for ow-temerature Plasma Generators, Power Electronics, IEEE Transactions on, ol.4, No.6,. 4- (999) [] Y. Sakamoto, K. Wada, T. Shimizu: "A 3.56 MHz Current-oututtye Inverter Utilizing An Immittance Conversion Element", EPE- PEMC 8, (8) [3] S. Suzuki, T. Shimizu: "A Study on Efficiency Imrovement of Highfrequency Current Outut Inverter based on Immittance Conversion Element", IPEC 4, (4) [4] J. A. García, R. Marante, M. de las Nieves Ruiz avín: GaN HEMT Class E Resonant Toologies for UHF DC/DC Power Conversion, Microwave theory and techniques, IEEE Transactions on, ol.6, No., () [5] J. M. Burkhart, R. Korsunsky, D. J. Perreault: Design Methodology for a ery High Frequency Resonant Boost Converter, Power Electronics, IEEE Transactions on, ol.8, No.4, (3) [6] H. Zhou, W., E. Persson: "Evaluation of GaN, SiC and Suerjunction in MHz C Converter", PCIM5, (5) [7] K. Orikawa, J. Itoh: "Exerimental erification of MHz Inverter Constructed from Frequency Multilying Circuit with Soft-Switching", PCIM5, (5) [8] G. Ortiz, J. Biela, D. Bortis, J. W. Kolar: Megawatt, khz, Isolated, Bidirectional k to.k DC-DC Converter for Renewable Energy Alications, The International Power Electronics Conference, ()

Self-Driven Phase Shifted Full Bridge Converter for Telecom Applications

Self-Driven Phase Shifted Full Bridge Converter for Telecom Applications Self-Driven Phase Shifted Full Bridge Converter for Telecom Alications SEVILAY CETIN Technology Faculty Pamukkale University 7 Kinikli Denizli TURKEY scetin@au.edu.tr Abstract: - For medium ower alications,

More information

Recent Approaches to Develop High Frequency Power Converters

Recent Approaches to Develop High Frequency Power Converters The 1 st Symposium on SPC (S 2 PC) 17/1/214 Recent Approaches to Develop High Frequency Power Converters Location Fireworks Much snow Tokyo Nagaoka University of Technology, Japan Prof. Jun-ichi Itoh Dr.

More information

High-Frequency Isolated DC/DC Converter for Input Voltage Conditioning of a Linear Power Amplifier

High-Frequency Isolated DC/DC Converter for Input Voltage Conditioning of a Linear Power Amplifier High-Frequency solated DC/DC Converter for nut oltage Conditioning of a inear ower Amlifier Guanghai Gong, Hans Ertl and Johann W. Kolar Swiss Federal nstitute of Technology (ETH) urich ower Electronic

More information

A Novel Control Method Focusing on Reactive Power for A Dual Active Bridge Converter

A Novel Control Method Focusing on Reactive Power for A Dual Active Bridge Converter A Novel Control Method Focusing on Reactive Power for A Dual Active Bridge Converter Jun-ichi Itoh, Hayato Higa, Tsuyoshi Nagano Department of Electronics and Information Engineering Nagaoka University

More information

T- filters based dual-control dimmable electronic ballast

T- filters based dual-control dimmable electronic ballast 3rd International Conference on Mechatronics, obotics and Automation (ICMA 5 T- filters based dual-control dimmable electronic ballast Huadong Wang, a,xu Cai, b,lili Liu Electronic Information and Electrical

More information

Lab 4: The transformer

Lab 4: The transformer ab 4: The transformer EEC 305 July 8 05 Read this lab before your lab eriod and answer the questions marked as relaboratory. You must show your re-laboratory answers to the TA rior to starting the lab.

More information

A fast hysteresis control strategy based on capacitor charging and discharging

A fast hysteresis control strategy based on capacitor charging and discharging LETTER A fast hysteresis control strategy based on caacitor charging and discharging Jianfeng Dai, Jinbin Zhao a), Keqing Qu, and Ming Lin College of Electrical Engineering, Shanghai University of electric

More information

Three-Phase Series-Buck Rectifier with Split DC- Bus Based on the Scott Transformer

Three-Phase Series-Buck Rectifier with Split DC- Bus Based on the Scott Transformer Three-Phase Series-Buck Rectifier with Slit DC- Bus Based on the Scott Transformer Alceu André Badin and Io Barbi Federal Uniersity of Santa Catarina/Deartment of Electrical Engineering/Power Electronics

More information

University of Twente

University of Twente University of Twente Faculty of Electrical Engineering, Mathematics & Comuter Science Design of an audio ower amlifier with a notch in the outut imedance Remco Twelkemeijer MSc. Thesis May 008 Suervisors:

More information

Improvement of Light Load Efficiency for Buck- Boost DC-DC converter with ZVS using Switched Auxiliary Inductors

Improvement of Light Load Efficiency for Buck- Boost DC-DC converter with ZVS using Switched Auxiliary Inductors Improvement of ight oad Efficiency for Buck- Boost DC-DC converter with ZVS using Switched Auxiliary Inductors Hayato Higa Dept. of Energy Environment Science Engineering Nagaoka University of Technology

More information

2014 Power Amplifier Symposium BROADBAND PA TECHNIQUES FOR EFFICIENCY ENHANCEMENT

2014 Power Amplifier Symposium BROADBAND PA TECHNIQUES FOR EFFICIENCY ENHANCEMENT 14 Power Amlifier Symosium BROADBAND PA TECHNIQUES FOR EFFICIENCY ENHANCEMENT Dr. Andrei Grebennikov grandrei@ieee.org 1 BROADBAND POWER AMPIFIER TECHNIQUES FOR EFFICIENCY ENHANCEMENT 1.Reactance comensation

More information

A novel High Bandwidth Pulse-Width Modulated Inverter

A novel High Bandwidth Pulse-Width Modulated Inverter Proceedings of the 10th WSEAS International onference on IRUITS, Vouliagmeni, Athens, Greece, July 101, 006 (8085) A novel High Bandwidth PulseWidth Modulated Inverter J. HATZAKIS, M. VOGIATZAKI, H. RIGAKIS,

More information

Full Bridge Single Stage Electronic Ballast for a 250 W High Pressure Sodium Lamp

Full Bridge Single Stage Electronic Ballast for a 250 W High Pressure Sodium Lamp Full Bridge Single Stage Electronic Ballast for a 50 W High Pressure Sodium am Abstract In this aer will be reorted the study and imlementation of a single stage High Power Factor (HPF) electronic ballast

More information

Chapter 7: Passive Filters

Chapter 7: Passive Filters EETOMAGNETI OMPATIBIITY HANDBOOK 1 hater 7: Passive Filters 7.1 eeat the analytical analysis given in this chater for the low-ass filter for an filter in shunt with the load. The and for this filter are

More information

State-of-the-Art Verification of the Hard Driven GTO Inverter Development for a 100 MVA Intertie

State-of-the-Art Verification of the Hard Driven GTO Inverter Development for a 100 MVA Intertie State-of-the-Art Verification of the Hard Driven GTO Inverter Develoment for a 100 MVA Intertie P. K. Steimer, H. Grüning, J. Werninger R&D Drives and Power Electronics ABB Industrie AG CH-5300 Turgi,

More information

Design and Implementation of a Novel Multilevel DC-AC Inverter

Design and Implementation of a Novel Multilevel DC-AC Inverter This article has been acceted for ublication in a future issue of this journal, but has not been fully edited. Content may change rior to final ublication. Citation information: DOI 1.119/TIA.216.2527622,

More information

Comparing investigation for a Bi-directional Isolated DC/DC Converter using Series Voltage Compensation

Comparing investigation for a Bi-directional Isolated DC/DC Converter using Series Voltage Compensation Comparing investigation for a Bi-directional Isolated DC/DC Converter using Series Voltage Compensation Satoshi Miyawaki Nagaoka University of Technology Niigata, Japan miyawaki@stn.nagaokaut.ac.jp Jun-ichi

More information

Electronic Ballast with Wide Dimming Range: Matlab-Simulink Implementation of a Double Exponential Fluorescent-Lamp Model

Electronic Ballast with Wide Dimming Range: Matlab-Simulink Implementation of a Double Exponential Fluorescent-Lamp Model Electronic Ballast with Wide Dimming ange: Matlab-Simulink Imlementation of a Double Exonential Fluorescent-Lam Model Marina Perdigão and E. S. Saraiva Deartamento de Engenharia Electrotécnica Instituto

More information

Sine-wave three phase resonance inverter for operation of renewable energy systemsr MOEIN KHOSRAVI 1

Sine-wave three phase resonance inverter for operation of renewable energy systemsr MOEIN KHOSRAVI 1 JASEM ISSN 1119-8362 All rights reserved Full-text Available Online at www.ajol.info and www.bioline.org.br/ja J. Al. Sci. Environ. Manage. Setember 214 Vol. 18 (3) 1-21 Sine-wave three hase resonance

More information

International Journal of Advance Engineering and Research Development HIGH EFFICIENCY AND HIGH DENSITY AC-DC FLYBACK CONVERER

International Journal of Advance Engineering and Research Development HIGH EFFICIENCY AND HIGH DENSITY AC-DC FLYBACK CONVERER Scientific Journal of mact Factor(SJF):.14 nternational Journal of dvance Engineering and Research Develoment Volume,ssue 5, May -015 e-ssn(o): 48-4470 -SSN(P): 48-6406 HGH EFFCENCY ND HGH DENSTY C-DC

More information

5KW LED DRIVER. High Power White LED. LED Driver Requirement. Topology selection: Design Specifications

5KW LED DRIVER. High Power White LED. LED Driver Requirement. Topology selection: Design Specifications 5KW LED DRIVER High Power White LED Enormous energy can be saved by using efficient equiments along with effective control and careful design. The use of energy efficient lighting has been gaining oularity

More information

ELECTRICAL TECHNOLOGY EET 103/4

ELECTRICAL TECHNOLOGY EET 103/4 ELECTRICAL TECHNOLOGY EET 103/4 Define and analyze the rincile of transformer, its arameters and structure. Describe and analyze Ideal transformer, equivalent circuit, and hasor diagram Calculate and justify

More information

A New ISPWM Switching Technique for THD Reduction in Custom Power Devices

A New ISPWM Switching Technique for THD Reduction in Custom Power Devices A New ISPWM Switching Technique for THD Reduction in Custom Power Devices S. Esmaeili Jafarabadi, G. B. Gharehetian Deartment of Electrical Engineering, Amirkabir University of Technology, 15914 Tehran,

More information

SIMULATION STUDIES OF HALF-BRIDGE ISOLATED DC/DC BOOST CONVERTER

SIMULATION STUDIES OF HALF-BRIDGE ISOLATED DC/DC BOOST CONVERTER POZNAN UNIVE RSITY OF TE CHNOLOGY ACADE MIC JOURNALS No 80 Electrical Engineering 2014 Adam KRUPA* SIMULATION STUDIES OF HALF-BRIDGE ISOLATED DC/DC BOOST CONVERTER In order to utilize energy from low voltage

More information

Transformer and LCL Filter Design for DPFCs

Transformer and LCL Filter Design for DPFCs Transformer and LCL Filter Design for DPFCs Ivo M. Martins 1, J. Fernando A. Silva, Sónia Ferreira Pinto, and Isménio E. Martins 1 1 INESC-id, Deartment of Electrical Engineering, ISE, University of Algarve,

More information

Comparative Evaluation of Three-Phase Isolated Matrix-Type PFC Rectifier Concepts for High Efficiency 380VDC Supplies of Future Telco and Data Centers

Comparative Evaluation of Three-Phase Isolated Matrix-Type PFC Rectifier Concepts for High Efficiency 380VDC Supplies of Future Telco and Data Centers 214 IEEE Proceedings of the 16th Euroean Conference on Power Electronics and Alications (EPE 214 - ECCE Euroe), Laeenranta, Finland, August 26-28, 214 Comarative Evaluation of Three-Phase Isolated Matrix-Tye

More information

Experimental Verification of High Frequency Link DC-AC Converter using Pulse Density Modulation at Secondary Matrix Converter.

Experimental Verification of High Frequency Link DC-AC Converter using Pulse Density Modulation at Secondary Matrix Converter. Experimental erification of High Frequency Link DC-AC Converter using Pulse Density Modulation at Secondary Matrix Converter. Jun-ichi Itoh, Ryo Oshima and Hiroki Takahashi Dept. of Electrical, Electronics

More information

An Overview of Substrate Noise Reduction Techniques

An Overview of Substrate Noise Reduction Techniques An Overview of Substrate Noise Reduction Techniques Shahab Ardalan, and Manoj Sachdev ardalan@ieee.org, msachdev@ece.uwaterloo.ca Deartment of Electrical and Comuter Engineering University of Waterloo

More information

Impedance Matching and PSpice R Simulation of One Atmosphere Uniform Glow Discharge Plasma (OAUGDP ) Reactor/Actuator Systems

Impedance Matching and PSpice R Simulation of One Atmosphere Uniform Glow Discharge Plasma (OAUGDP ) Reactor/Actuator Systems University of Tennessee, Knoxville Trace: Tennessee esearch and reative Exchange Masters Theses Graduate School 1-7 Imedance Matching and PSice Simulation of One Atmoshere Uniform Glow Discharge Plasma

More information

Soft-Switching Active-Clamp Flyback Microinverter for PV Applications

Soft-Switching Active-Clamp Flyback Microinverter for PV Applications Soft-Switching Active-Clamp Flyback Microinverter for PV Applications Rasedul Hasan, Saad Mekhilef, Mutsuo Nakaoka Power Electronics and Renewable Energy Research Laboratory (PEARL), Faculty of Engineering,

More information

Design of a Power Converter Based on UC3842 for Blade Electric Vehicle

Design of a Power Converter Based on UC3842 for Blade Electric Vehicle Design of a Power Converter Based on UC3842 for Blade Electric Vehicle Zhenyou Wang, Qun Sun*, Hongqiang Guo School of Mechanical and Automotive Engineering, Liaocheng University Liaocheng, China *Corresonding

More information

Switching threshold. Switch delay model. Input pattern effects on delay

Switching threshold. Switch delay model. Input pattern effects on delay Switching threshold Low Power VLSI System Design Lecture 8 & 9: Transistor Sizing and Low Power Memory Design Prof. R. Iris ahar October & 4, 017 Define V M to be the oint where V in = V out (both PMOS

More information

A New 98% Soft-Switching Full-Bridge DC-DC Converter based on Secondary-Side LC Resonant Principle for PV Generation Systems

A New 98% Soft-Switching Full-Bridge DC-DC Converter based on Secondary-Side LC Resonant Principle for PV Generation Systems IEEE PEDS 211, Singapore, 5-8 December 211 A New 98% Soft-Switching Full-Bridge DC-DC Converter based on Secondary-Side LC Resonant Principle for PV Generation Systems Daisuke Tsukiyama*, Yasuhiko Fukuda*,

More information

Application of Notch Filtering under Low Sampling Rate for Broken Rotor Bar Detection with DTFT and AR based Spectrum Methods

Application of Notch Filtering under Low Sampling Rate for Broken Rotor Bar Detection with DTFT and AR based Spectrum Methods Alication of Notch Filtering under Low Samling Rate for Broken Rotor Bar Detection with DTFT and AR based Sectrum Methods B. Ayhan H. J. Trussell M.-Y. Chow M.-H. Song IEEE Student Member IEEE Fellow IEEE

More information

SERIES RL CIRCUITS (1)

SERIES RL CIRCUITS (1) SEIES IUIS () ircuit above is a series network connected to an ac voltage source Need to find the hasor form of the total imedance of this combination he total imedance of this series combination is he

More information

Analysis and Control of Three Phase PWM Rectifier for Power Factor Improvement of IM Drive

Analysis and Control of Three Phase PWM Rectifier for Power Factor Improvement of IM Drive htt://dx.doi.org/0.272/ijiet.02.9 Analysis and Control of Three Phase PWM Rectifier for Power Factor Imrovement of IM Drive Ajesh P S, Jisha Kuruvila P 2, Dr. Anasraj R 3 PG Scholar, Deartment of Electrical

More information

A Constant current constant Voltage output mode of LED Drive. ZhiJun Guo

A Constant current constant Voltage output mode of LED Drive. ZhiJun Guo nternational Conference on Civil, Transortation and Environment (CCTE 06 A Constant current constant oltage outut mode of ED Drive ZhiJun Guo Zhejiang niversity of Water esources and Electric Power, Hangzhou,Zhejiang,Cha

More information

A new family of highly linear CMOS transconductors based on the current tail differential pair

A new family of highly linear CMOS transconductors based on the current tail differential pair MEJ 552 Microelectronics Journal Microelectronics Journal 30 (1999) 753 767 A new family of highly linear CMOS transconductors based on the current tail differential air A.M. Ismail, S.K. ElMeteny, A.M.

More information

Design and Implementation of Type-II Compensator in DC-DC Switch-Mode Step-up Power Supply

Design and Implementation of Type-II Compensator in DC-DC Switch-Mode Step-up Power Supply Design and Imlementation of Tye-II Comensator in DC-DC Switch-Mode Ste-u Power Suly Arnab Ghosh, Student Member, IEEE, and Subrata Banerjee, Member, IEEE Deartment of Electrical Engineering, National Institute

More information

works must be obtained from the IEE

works must be obtained from the IEE NAOSITE: Nagasaki University's Ac Title Author(s) Otimal us caacitance design for ower architecture Ae, Seiya; Hirokawa, Masahiko; Sho Citation EPE-PEMC 8,.393-399 Issue Date 8-9 URL Right htt://hdl.handle.net/69/829

More information

E ects of leakage inductance on the input current of double-star diode recti er with active inter-phase reactor

E ects of leakage inductance on the input current of double-star diode recti er with active inter-phase reactor Scientia Iranica D (017) (6), 19{0 Sharif University of Technology Scientia Iranica Transactions D: Comuter Science & Engineering and Electrical Engineering www.scientiairanica.com E ects of leaage inductance

More information

Application of GaN Device to MHz Operating Grid-Tied Inverter Using Discontinuous Current Mode for Compact and Efficient Power Conversion

Application of GaN Device to MHz Operating Grid-Tied Inverter Using Discontinuous Current Mode for Compact and Efficient Power Conversion IEEE PEDS 2017, Honolulu, USA 12-15 December 2017 Application of GaN Device to MHz Operating Grid-Tied Inverter Using Discontinuous Current Mode for Compact and Efficient Power Conversion Daichi Yamanodera

More information

EE 462: Laboratory Assignment 6 Biasing of Transistors: N- channel MOSFET

EE 462: Laboratory Assignment 6 Biasing of Transistors: N- channel MOSFET EE 46: Laboratory Assignment 6 Biasing of Transistors: N channel MOFET by r. A.V. adun and r... onohue (10//03 eartment of Elecical and Comuter Engineering University of entucky Lexington, Y 40506 Laboratory

More information

Pulse Shapes Techniques Application to Intense Pulsed Light for skin lesions

Pulse Shapes Techniques Application to Intense Pulsed Light for skin lesions International Journal of Engineering Science Invention ISSN (Online): 319 6734, ISSN (Print): 319 676 Volume 6 Issue 6 June 17 PP. 71-79 Pulse Shaes Techniques Alication to Intense Pulsed Light for skin

More information

Low-Voltage, Voltage-Controlled Charge Pump Regulator Applying a Highly Efficient Minimization Ripple Technique

Low-Voltage, Voltage-Controlled Charge Pump Regulator Applying a Highly Efficient Minimization Ripple Technique 54 SOERA et al.: OW-VOTAGE, VOTAGE-CONTROE CHARGE PUMP REGUATOR ow-voltage, Voltage-Controlled Charge Pum Regulator Alying a Highly Efficient Minimization Rile Technique J.. B. Soldera, A.. Vilas Boas

More information

A Comparative Study on Compensating Current Generation Algorithms for Shunt Active Filter under Non-linear Load Conditions

A Comparative Study on Compensating Current Generation Algorithms for Shunt Active Filter under Non-linear Load Conditions International Journal of Scientific and Research Publications, Volume 3, Issue 6, June 2013 1 A Comarative Study on Comensating Current Generation Algorithms for Shunt Active Filter under Non-linear Conditions

More information

2015 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media,

2015 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, 015 IEEE. Personal use of this material is ermitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including rerinting/reublishing this material for advertising

More information

Online Adaptive Continuous Wavelet Transform and Fuzzy Logic Based High Precision Fault Detection of Broken Rotor Bars for IM

Online Adaptive Continuous Wavelet Transform and Fuzzy Logic Based High Precision Fault Detection of Broken Rotor Bars for IM Science Research 206; 4(6): 57-68 htt://www.scienceublishinggrou.com/j/sr doi: 0.648/j.sr.2060406.3 ISSN: 2329-0935 (Print); ISSN: 2329-0927 (Online) Online Adative Continuous Wavelet Transform and Fuzzy

More information

References. Advanced Industrial Electronics Resonant Power Converters

References. Advanced Industrial Electronics Resonant Power Converters Advanced Industrial Electronics Resonant Power Converters References [1] Kazimierczuk M., Czarkowski D., Resonant power converters, John Wiley and Sons, Inc. 1995 [] Kazimierczuk M., Czarkowski D., Solutions

More information

ANALYSIS OF BROADBAND GAN SWITCH MODE CLASS-E POWER AMPLIFIER

ANALYSIS OF BROADBAND GAN SWITCH MODE CLASS-E POWER AMPLIFIER Progress In Electromagnetics Research Letters, Vol. 38, 151 16, 213 ANALYSIS OF BROADBAND GAN SWITCH MODE CLASS-E POWER AMPLIFIER Ahmed Tanany, Ahmed Sayed *, and Georg Boeck Berlin Institute of Technology,

More information

DIGITALLY CONTROLLED QUADRATURE OSCILLATOR EMPLOYING TWO ZC-CG-CDBAs

DIGITALLY CONTROLLED QUADRATURE OSCILLATOR EMPLOYING TWO ZC-CG-CDBAs DIGITALLY ONTOLLED QUADATUE OSILLATO EMPLOYING TWO Z-G-DBAs Josef Bajer, Dalibor Biolek UD/BUT, Det. of EE/Microelectronics Kounicova 65/Udolni 53, Brno, zech eublic dalibor.biolek@unob.cz ABSTAT: A simle

More information

Frequency, where we are today, and where we need to go

Frequency, where we are today, and where we need to go Frequency, where we are today, and where we need to go Ionel Dan Jitaru Rompower Energy Systems Inc. 6262 N. Swan Rd., Suite 200 Tucson, Arizona 85718 OUTLINE Directions in topologies and operation frequency

More information

Efficiency Improvement of High Frequency Inverter for Wireless Power Transfer System Using a Series Reactive Power Compensator

Efficiency Improvement of High Frequency Inverter for Wireless Power Transfer System Using a Series Reactive Power Compensator IEEE PEDS 27, Honolulu, USA 2-5 December 27 Efficiency Improvement of High Frequency Inverter for Wireless Power Transfer System Using a Series Reactive Power Compensator Jun Osawa Graduate School of Pure

More information

There are two basic types of FET s: The junction field effect transistor or JFET the metal oxide FET or MOSFET.

There are two basic types of FET s: The junction field effect transistor or JFET the metal oxide FET or MOSFET. Page 61 Field Effect Transistors The Fieldeffect transistor (FET) We know that the biolar junction transistor or BJT is a current controlled device. The FET or field effect transistor is a voltage controlled

More information

NODIA AND COMPANY. GATE SOLVED PAPER Electrical Engineering POWER ELECTRONICS. Copyright By NODIA & COMPANY

NODIA AND COMPANY. GATE SOLVED PAPER Electrical Engineering POWER ELECTRONICS. Copyright By NODIA & COMPANY No art of this ublication may be reroduced or distributed in any form or any means, electronic, mechanical, hotocoying, or otherwise without the rior ermission of the author. GATE SOLVED PAPER Electrical

More information

Highly-Reliable Fly-back-based PV Micro-inverter Applying Power Decoupling Capability without Additional Components

Highly-Reliable Fly-back-based PV Micro-inverter Applying Power Decoupling Capability without Additional Components Highly-Reliable Fly-back-based P Micro-inverter Applying Power Decoupling Capability without Additional Components Hiroki Watanabe, Nagaoka University of technology, Japan, hwatanabe@stn.nagaopkaut.ac.jp

More information

Physics. Valve Electronics.

Physics. Valve Electronics. Physics Valve Electronics www.testrekart.com Table of Content 1. Do You Know?. Thermionic Emission and Emitters. 3. Vacuum Tubes and Thermionic Valves. 4. Diode Valve. 5. Triode Valve. 1 1. Do You Know?

More information

Loss Evaluation of a Series-Parallel Compensation DC-DC Converter for a Small Fuel Cell System

Loss Evaluation of a Series-Parallel Compensation DC-DC Converter for a Small Fuel Cell System oss Evaluation of a Series-arallel Compensation DC-DC Converter for a Small Fuel Cell System Koji Orikawa, Jun-ichi toh Nagaoka University of Technology Department of Electronics and nformation Engineering

More information

Study of Power Loss Reduction in SEPR Converters for Induction Heating through Implementation of SiC Based Semiconductor Switches

Study of Power Loss Reduction in SEPR Converters for Induction Heating through Implementation of SiC Based Semiconductor Switches Study of Power Loss Reduction in SEPR Converters for Induction Heating through Implementation of SiC Based Semiconductor Switches Angel Marinov 1 1 Technical University of Varna, Studentska street 1, Varna,

More information

SiC MOSFETs Based Split Output Half Bridge Inverter: Current Commutation Mechanism and Efficiency Analysis

SiC MOSFETs Based Split Output Half Bridge Inverter: Current Commutation Mechanism and Efficiency Analysis SiC MOSFETs Based Split Output Half Bridge Inverter: Current Commutation Mechanism and Efficiency Analysis Helong Li, Stig Munk-Nielsen, Szymon Bęczkowski, Xiongfei Wang Department of Energy Technology

More information

A Modified PI Control for Grid-tied Inverters to Improve Grid Injected Current Quality

A Modified PI Control for Grid-tied Inverters to Improve Grid Injected Current Quality A Modified PI Control for Grid-tied Inverters to Imrove Grid Injected Current Quality P. Rajesh #1, Ram Ishwar Vais #2, Shivam Yadav #3, Parag Swaru #4 # Deartment of Electrical Engineering, Institute

More information

LAB IX. LOW FREQUENCY CHARACTERISTICS OF JFETS

LAB IX. LOW FREQUENCY CHARACTERISTICS OF JFETS LAB X. LOW FREQUENCY CHARACTERSTCS OF JFETS 1. OBJECTVE n this lab, you will study the -V characteristics and small-signal model of Junction Field Effect Transistors (JFET).. OVERVEW n this lab, we will

More information

Metamaterial-based Slow Wave Structures for Travelling Wave Tubes. Muhammed Zuboraj, Nil Apaydin, Kubilay Sertel, John. L Volakis

Metamaterial-based Slow Wave Structures for Travelling Wave Tubes. Muhammed Zuboraj, Nil Apaydin, Kubilay Sertel, John. L Volakis Metamaterial-based Slow Wave Structures for Travelling Wave Tubes Muhammed Zuboraj, Nil Aaydin, Kubilay Sertel, John. L Volakis 1 Outlines ü Brief introduc on to Travelling Wave Tube Amlifiers ü Fundamental

More information

A METHOD FOR SEAT OCCUPANCY DETECTION FOR AUTOMOBILE SEATS WITH INTEGRATED HEATING ELEMENTS

A METHOD FOR SEAT OCCUPANCY DETECTION FOR AUTOMOBILE SEATS WITH INTEGRATED HEATING ELEMENTS XIX IMEKO World Congress Fundamental and Alied Metrology Setember 6 11, 2009, Lisbon, Portugal A MEHOD FO SEA OCCUPANCY DEECION FO AUOMOBILE SEAS WIH INEGAED HEAING ELEMENS Boby George, Hubert Zangl, homas

More information

Wide Band-Gap (SiC and GaN) Devices Characteristics and Applications. Richard McMahon University of Cambridge

Wide Band-Gap (SiC and GaN) Devices Characteristics and Applications. Richard McMahon University of Cambridge Wide Band-Gap (SiC and GaN) Devices Characteristics and Applications Richard McMahon University of Cambridge Wide band-gap power devices SiC : MOSFET JFET Schottky Diodes Unipolar BJT? Bipolar GaN : FET

More information

An Efficient VLSI Architecture Parallel Prefix Counting With Domino Logic Λ

An Efficient VLSI Architecture Parallel Prefix Counting With Domino Logic Λ An Efficient VLSI Architecture Parallel Prefix Counting With Domino Logic Λ Rong Lin y Koji Nakano z Stehan Olariu x Albert Y. Zomaya Abstract We roose an efficient reconfigurable arallel refix counting

More information

A Genetic Algorithm Approach for Sensorless Speed Estimation by using Rotor Slot Harmonics

A Genetic Algorithm Approach for Sensorless Speed Estimation by using Rotor Slot Harmonics A Genetic Algorithm Aroach for Sensorless Seed Estimation by using Rotor Slot Harmonics Hayri Arabaci Abstract In this aer a sensorless seed estimation method with genetic algorithm for squirrel cage induction

More information

A NOVEL BUCK-BOOST INVERTER FOR PHOTOVOLTAIC SYSTEMS

A NOVEL BUCK-BOOST INVERTER FOR PHOTOVOLTAIC SYSTEMS A NOVE BUCK-BOOST INVERTER FOR PHOTOVOTAIC SYSTEMS iuchen Chang, Zhumin iu, Yaosuo Xue and Zhenhong Guo Dept. of Elec. & Comp. Eng., University of New Brunswick, Fredericton, NB, Canada Phone: (506) 447-345,

More information

DIGITAL INTELLIGENT POWER FACTOR REGULATOR

DIGITAL INTELLIGENT POWER FACTOR REGULATOR An ISO 9001:2008 Comany DIGITAL INTELLIGENT POWER FACTOR REGULATOR Model - KM-PFR-9-06 / KM-PFR-9-12 The ioneers & leaders in high quality ower factor controllers & maximum demand controllers, now introduce

More information

Experimental Verification of Wireless Charging System for Vehicle Application using EDLCs

Experimental Verification of Wireless Charging System for Vehicle Application using EDLCs Experimental Verification of Wireless Charging System for Vehicle Application using Jun-ichi Itoh, Kenji Noguchi and Koji Orikawa Department of Electrical, Electronics and Information Engineering Nagaoka

More information

MULTIPLE CHOICE QUESTIONS

MULTIPLE CHOICE QUESTIONS MULTIPLE CHOICE QUESTIONS (1) In 1831 Faraday in England and hennery in USA observed that an e.m.f is set u in conductor when it moves across a (a) Electric field (b) Magnetic field (c) Gravitational field

More information

U-series IGBT Modules (1,200 V)

U-series IGBT Modules (1,200 V) U-series IGBT Modules (1, V) Yuichi Onozawa Shinichi Yoshiwatari Masahito Otsuki 1. Introduction Power conversion equiment such as general-use inverters and uninterrutible ower sulies (UPSs) is continuously

More information

Two-output Class E Isolated dc-dc Converter at 5 MHz Switching Frequency 1 Z. Pavlović, J.A. Oliver, P. Alou, O. Garcia, R.Prieto, J.A.

Two-output Class E Isolated dc-dc Converter at 5 MHz Switching Frequency 1 Z. Pavlović, J.A. Oliver, P. Alou, O. Garcia, R.Prieto, J.A. Two-output Class E Isolated dc-dc Converter at 5 MHz Switching Frequency 1 Z. Pavlović, J.A. Oliver, P. Alou, O. Garcia, R.Prieto, J.A. Cobos Universidad Politécnica de Madrid Centro de Electrónica Industrial

More information

SLVE2.8 and SLVG2.8. EPD TVS Diodes For ESD and Latch-Up Protection. PROTECTION PRODUCTS Description. Features. Mechanical Characteristics

SLVE2.8 and SLVG2.8. EPD TVS Diodes For ESD and Latch-Up Protection. PROTECTION PRODUCTS Description. Features. Mechanical Characteristics Descrition The SL series of transient voltage suressors are designed to rotect low voltage, state-of-the-art CMOS semiconductors from transients caused by electrostatic discharge (ESD), cable discharge

More information

Power Electronics in PV Systems

Power Electronics in PV Systems Introduction to Power Electronics in PV Systems EEN 2060 References: EEN4797/5797 Intro to Power Electronics ece.colorado.edu/~ecen5797 Textbook: R.W.Erickson, D.Maksimovic, Fundamentals of Power Electronics,

More information

Digital Control Implementation for a Single-PWM Multiple- Output Switching Converter

Digital Control Implementation for a Single-PWM Multiple- Output Switching Converter Digital ontrol Imlementation for a SinglePWM Multile Outut Switching onverter Kyusik hoi, B.H.ho School of Electrical Engineering and omuter Science, Seoul ational University #043, San 56, Shinlimdong,

More information

Small-Signal Analysis of DCM Flyback Converter in Frequency-Foldback Mode of Operation

Small-Signal Analysis of DCM Flyback Converter in Frequency-Foldback Mode of Operation Small-Signal Analysis of DCM Flyback Converter in Frequency-Foldback Mode of eration Laszlo Huber and Milan M. Jovanović Delta Products Cororation P.. Box 73 5 Davis Drive Research Triangle Park, NC 779,

More information

FAYÇAL CHABNI, RACHID TALEB, M HAMED HELAIMI

FAYÇAL CHABNI, RACHID TALEB, M HAMED HELAIMI Rev. Roum. Sci. Techn. Électrotechn. et Énerg. Vol. 6, 4,. 4 4, Bucarest, 7 OUTPUT VOLTAGE WAVEFORM IMPROVEMENT OF MODIFIED CASCADED H-BRIDGE MULTILEVEL INVERTER USING SELECTIVE HARMONIC ELIMINATION TECHNIQUE

More information

A 2-MHz 6-kVA voltage-source inverter using low-profile MOSFET modules for low-temperature plasma generators

A 2-MHz 6-kVA voltage-source inverter using low-profile MOSFET modules for low-temperature plasma generators Engineering Electrical Engineering fields Okayama University Year 1999 A 2-MHz 6-kVA voltage-source inverter using low-profile MOSFET modules for low-temperature plasma generators Hideaki Fujita Okayama

More information

Series PID Pitch Controller of Large Wind Turbines Generator

Series PID Pitch Controller of Large Wind Turbines Generator SERBIAN JOURNAL OF ELECRICAL ENGINEERING Vol. 1, No., June 015, 183-196 UDC: 61.311.4:681.5 DOI: 10.98/SJEE150183M Series PID Pitch Controller of Large Wind urbines Generator Aleksandar D. Micić 1, Miroslav

More information

CHAPTER 5 INTERNAL MODEL CONTROL STRATEGY. The Internal Model Control (IMC) based approach for PID controller

CHAPTER 5 INTERNAL MODEL CONTROL STRATEGY. The Internal Model Control (IMC) based approach for PID controller CHAPTER 5 INTERNAL MODEL CONTROL STRATEGY 5. INTRODUCTION The Internal Model Control (IMC) based aroach for PID controller design can be used to control alications in industries. It is because, for ractical

More information

An Experimental Verification and Analysis of a Single-phase to Three-phase Matrix Converter using PDM Control Method for High-frequency Applications

An Experimental Verification and Analysis of a Single-phase to Three-phase Matrix Converter using PDM Control Method for High-frequency Applications An Experimental Verification and Analysis of a Single-phase to Three-phase Matrix Converter using PDM Control Method for High-frequency Applications Yuki Nakata Nagaoka University of Technology nakata@stn.nagaokaut.ac.jp

More information

Application Note D. Dynamic Torque Measurement

Application Note D. Dynamic Torque Measurement Page 1 of 9 Alication Note 221101D Dynamic Torque Measurement Background Rotary ower sources and absorbers have discrete oles and/or istons and/or gear meshes, etc. As a result, they develo and absorb

More information

Tutorial 5 - Isolated DC-DC Converters and Inverters

Tutorial 5 - Isolated DC-DC Converters and Inverters University of New South Wales School of Electrical Engineering and Telecommunications Tutorial 5 - Isolated DC-DC Converters and Inverters Flyback Converter N2 3 1. A dc-dc flyback converter has a turns

More information

Radio Frequency Electronics

Radio Frequency Electronics Radio Frequency Electronics Active omonents III Samuel Morse Born in 1791 in Massachusetts Fairly accomlished ainter After witnessing various electrical exeriments, got intrigued by electricity Designed

More information

RClamp2574N. High Power TVS for Ethernet Interfaces. PROTECTION PRODUCTS - RailClamp Description. Features. Mechanical Characteristics.

RClamp2574N. High Power TVS for Ethernet Interfaces. PROTECTION PRODUCTS - RailClamp Description. Features. Mechanical Characteristics. - RailClam Descrition RailClam TS diodes are secifically designed to rotect sensitive comonents which are connected to high-seed data and transmission lines from overvoltage caused by ESD (electrostatic

More information

EXPERIMENT 6 CLOSED-LOOP TEMPERATURE CONTROL OF AN ELECTRICAL HEATER

EXPERIMENT 6 CLOSED-LOOP TEMPERATURE CONTROL OF AN ELECTRICAL HEATER YEDITEPE UNIVERSITY ENGINEERING & ARCHITECTURE FACULTY INDUSTRIAL ELECTRONICS LABORATORY EE 432 INDUSTRIAL ELECTRONICS EXPERIMENT 6 CLOSED-LOOP TEMPERATURE CONTROL OF AN ELECTRICAL HEATER Introduction:

More information

The Advanced Trench HiGT with Separate Floating p-layer for Easy Controllability and Robustness

The Advanced Trench HiGT with Separate Floating p-layer for Easy Controllability and Robustness The with Searate Floating -Layer for Easy Controllability and Robustness Tiger Arai, S. Watanabe*, K. Ishibashi, Y. Toyoda, T. Oda, K. Saito and M. Mori*. Power & Industrial Systems Division, Power Systems

More information

Experimental Verification of Rectifiers with SiC/GaN for Wireless Power Transfer Using a Magnetic Resonance Coupling

Experimental Verification of Rectifiers with SiC/GaN for Wireless Power Transfer Using a Magnetic Resonance Coupling Experimental Verification of Rectifiers with Si/GaN for Wireless Power Transfer Using a Magnetic Resonance oupling Keisuke Kusaka Nagaoka University of Technology kusaka@stn.nagaokaut.ac.jp Jun-ichi Itoh

More information

System Design of Electric Assisted Bicycle using EDLCs and Wireless Charger

System Design of Electric Assisted Bicycle using EDLCs and Wireless Charger System Design of Electric Assisted Bicycle using EDLCs and Wireless Charger Jun-ichi Itoh, Kenji Noguchi and Koji Orikawa Department of Electrical, Electronics and Information Engineering Nagaoka University

More information

A Novel, Robust DSP-Based Indirect Rotor Position Estimation for Permanent Magnet AC Motors Without Rotor Saliency

A Novel, Robust DSP-Based Indirect Rotor Position Estimation for Permanent Magnet AC Motors Without Rotor Saliency IEEE TANSACTIONS ON POWE EECTONICS, VO. 18, NO. 2, MACH 2003 539 A Novel, obust DSP-Based Indirect otor Position Estimation for Permanent Magnet AC Motors Without otor Saliency i Ying and Nesimi Ertugrul,

More information

(11) Bipolar Op-Amp. Op-Amp Circuits:

(11) Bipolar Op-Amp. Op-Amp Circuits: (11) O-Am Circuits: Biolar O-Am Learning Outcome Able to: Describe and analyze the dc and ac characteristics of the classic 741 biolar o-am circuit. eference: Neamen, Chater 13 11.0) 741 O-Am 11.1) Circuit

More information

Power MOSFET Structure and Characteristics

Power MOSFET Structure and Characteristics Power MOSFET Structure and Characteristics Descrition This document exlains structures and characteristics of ower MOSFETs. 1 Table of Contents Descrition... 1 Table of Contents... 2 1. Structures and

More information

Dual Active Bridge Converter

Dual Active Bridge Converter Dual Active Bridge Converter Amit Jain Peregrine Power LLC now with Intel Corporation Lecture : Operating Principles Sinusoidal Voltages Bi-directional transfer Lagging current V o V 0 P VV sin L jl 0

More information

Performance Evaluation of Isolated Bi-directional DC/DC Converters with Buck, Boost operations

Performance Evaluation of Isolated Bi-directional DC/DC Converters with Buck, Boost operations Performance Evaluation of Isolated Bi-directional DC/DC Converters with Buck, Boost operations MD.Munawaruddin Quadri *1, Dr.A.Srujana *2 #1 PG student, Power Electronics Department, SVEC, Suryapet, Nalgonda,

More information

A Design of Sine-wave Oscillator Based on an Improved OP-amp Differentiator Zinan Zhou

A Design of Sine-wave Oscillator Based on an Improved OP-amp Differentiator Zinan Zhou 6th International onference on Mechatronic Material Biotechnology and Environment (IMMBE 6) A Deign of Sine-wave Ocillator Baed on an Imroved OP-am Differentiator Zinan Zhou Deartment of Jiangu Union echnical

More information

Soft-Switched Dual-Input DC-DC Converter Combining a Boost-Half-Bridge Cell and a Voltage-Fed Full-Bridge Cell

Soft-Switched Dual-Input DC-DC Converter Combining a Boost-Half-Bridge Cell and a Voltage-Fed Full-Bridge Cell IEEE TRANSACTIONS ON POWER ELECTRONICS 1 Soft-Switched Dual-Input DC-DC Converter Combining a Boost-Half-Bridge Cell and a Voltage-Fed Full-Bridge Cell Zhe Zhang, Member, IEEE, Ole C. Thomsen, Member,

More information

IN THE high power isolated dc/dc applications, full bridge

IN THE high power isolated dc/dc applications, full bridge 354 IEEE TRANSACTIONS ON POWER ELECTRONICS, VOL. 21, NO. 2, MARCH 2006 A Novel Zero-Current-Transition Full Bridge DC/DC Converter Junming Zhang, Xiaogao Xie, Xinke Wu, Guoliang Wu, and Zhaoming Qian,

More information

A novel wavelength shift keying transmitter using a pair of Mach Zehnder modulators

A novel wavelength shift keying transmitter using a pair of Mach Zehnder modulators Available online at www.sciencedirect.com Otics Communications 28 (2008) 257 252 www.elsevier.com/locate/otcom A novel wavelength shift keying transmitter using a air of Mach Zehnder modulators Hao Chi

More information

Unlocking the Power of GaN PSMA Semiconductor Committee Industry Session

Unlocking the Power of GaN PSMA Semiconductor Committee Industry Session Unlocking the Power of GaN PSMA Semiconductor Committee Industry Session March 24 th 2016 Dan Kinzer, COO/CTO dan.kinzer@navitassemi.com 1 Mobility (cm 2 /Vs) EBR Field (MV/cm) GaN vs. Si WBG GaN material

More information