CPES Power Management Consortium - with Extended Scope of Work
|
|
- Leslie Harmon
- 5 years ago
- Views:
Transcription
1 CPES Power Management Consortium - with Extended Scope of Work 1. Objectives Power Management Consortium (PMC) is an outgrowth of the VRM mini-consortium initiated in The goal is to extend its research scope with a focus on developing pre-competitive technologies in the areas of power management for distributed power system architectures, EMI/EMC, power quality, AC/DC converters, DC/DC converters, POL converters in such applications as powering microprocessors, tablet, notebook, desktop, server, data center, networking products, telecom equipment, solid state lighting and other industrial and consumer electronic applications. 2. Scope of Work The scope of work is highlighted in the following. For detailed information, please refer to the PMC prospectus at: < High performance VRM/POL converters High frequency magnetics characterization and design High frequency modeling Digital control High efficiency power architectures for laptops, desktops and servers EMI Solid state lighting Power management for PV system Power management for battery system The scope of work remains essentially the same as before. With the advent of recent wideband-gap power devices such as gallium-nitride (GaN) devices and silicon carbide (SiC) devices, significant emphasis will be placed on the development of high-efficiency and highpower density switch-mode power supplies. This effort will be highly leveraged with the recent DOE award, Next Generation Power Electronics Manufacturing Innovation Institute (NGPEMII). CPES is in partnership with this multi-industry, multi-university collaborative program for a period of 5 years, where CPES Director Fred C. Lee serves as the Power Electronics Thrust Leader. Our role is to work with the wide-band-gap (WBG) manufacturing industry to explore the potential applications and impact of GaN and SiC devices in power conversion technologies. The increasing emphasis on WBG-related activities is to bring more synergy between NGPEMII and the CPES mini-consortium programs, namely Power Management Consortium (PMC), High Density Integration (HDI), and Renewable Energy and Nanogrids (REN). While the major GaN research activities will be placed within PMC, SiC is targeted at higher power applications and will be addressed with greater interest in the REN mini-consortium. 1
2 In the proposed GaN-based research in PMC, we will use two testbeds to demonstrate the benefits of GaN-based power converters: (a) High-frequency adapter with 30-40W/in 3 power density and above 92% efficiency (b) High-frequency Off-Line Distributed Power Systems with W/in 3 power density and above 96% efficiency The following description pertains to the GaN-based research to be conducted within PMC. 3. The State-of-The-Art Power Supplies Industry According to U.S. Electric Power Research Institute, power electronics solutions can save 1/3 of the world s electrical power consumption. However, the full potential of power electronics has not yet been realized due to its high costs and poor reliability resulting from the current practice of using custom-designed, non-standard components and labor-intensive manufacturing processes. In the 1980s, power electronics was considered to be a core enabling technology for all of the major corporations in U.S. In the 1990s, major corporations adopted an outsourcing strategy and spun off their power electronics divisions. What had been a captive market was transformed into a merchant market. Fewer resources were available to devote to technical advancements in power electronics. Consequently, innovative solutions were scarce, and products became commoditized and cost driven. Today, most of the industry is focused on the bottom line and little is spent on R&D, with resources mostly spent on development rather than research. It is clear that the next-generation power electronics technologies can only be defined and developed with a longer-term vision and effort. It is our mission to lead this effort within PMC, with your support and shared vision. 4. A Trend Towards More Distributed Power Systems With the ever-increasing current consumption and clock frequency, today s microprocessors are operating at very low voltages and continuously switching between the sleep-mode and wake-up mode at frequencies of up to several MHz in order to conserve energy. Under the support of the National Science Foundation Engineering Research Center (NSF ERC), together with 25 industry corporations, Fred Lee and his team [1] have proposed and developed a multiphase voltage regulator (VR) module as the point-of-load (POL) converters for new generations of Intel Pentium microprocessors. A total of 25 U.S. patented technologies have been developed over the past 15 years, encompassing power delivery architecture, modularity and scalability, control and sensing, current sharing, integrated magnetics, advanced packaging, and integration technologies. Today, every PC and server microprocessor in the world is powered with this multi-phase VR. These technologies have been further extended to high-performance graphical 2
3 processors, server chipset and memory devices, networks, telecommunications, and all forms of mobile electronics. Recently, CPES-PMC demonstrated a series of 3D-integrated POL converters using GaN devices [2-4]. Although it is questionable that low-voltage GaN can compete with low-voltage silicon MOSFET at low voltage, these exercises were set to demonstrate the benefits of higher frequency operation and its ability to reduce the volume of magnetics. At 2-5 MHz, the magnetic component can be readily integrated into PCB or other forms of substrate. These prototype converters can achieve high efficiency (~90%) at a much higher power density (1000W/in 3 ) than today s industry practice, as shown in Fig. 1. It is envisioned that similar impact can be achieved for front-end power processor with high-voltage GaN devices. (a) Discrete 4 phase VR products with 100W/in 3 power density (b) Integrated 4 phase GaN based VR with 1000W/in 3 power density and 90% efficiency Figure 1. Comparison between discrete VR products and integrated GaN based VR While POL technologies are rapidly advancing, the front-end converter, at the present time, is still a custom-designed product using discrete power semiconductor devices and bulk passive components. The operating frequency of the front-end converters is still limited to relatively low switching frequency, around khz. Emerging GaN devices [5] have enabled a 10X increase in switching frequency [5-18]. CPES- PMC team has developed a 48V/12V DCX [6] and 400V/12V DCX [7] using GaN devices, operating at 1.6MHz and 1MHz, respectively as shown in Fig. 2. These two prototypes have demonstrated 900 W/in 325W for 48V/12V DCX and 700 W/in 1kW level for 400V/12V DCX. Furthermore, a bridgeless, totem-pole boost was developed, operating at 3
4 1MHz while achieving greater than 99% efficiency [14]. We believe that this high-frequency design will also gain significant size reduction in the EMI filter. Efficiency Output Current (Io) (a) 48V to 12V operating at 1.6 MHz with 900W/in 3 power density (b) 400V to 12V operating at 1MHz with 700W/in 3 power density Figure 2. Prototypes of LLC resonant converter based DC/DC transformer (DCX) With guarded optimism, we believe it is reasonable to expect that the power density of the frontend converter unit can be made with dramatically increased power density, from 30-50W/in 3 today to W/in 3 in the future, while achieving an improved efficiency greater than 96%. Furthermore, with additional efforts to perfect this design process, it is envisioned that front-end power processing would be fully modularized in standard building blocks at low cost, as shown in Fig. 3. 4
5 Figure 3. DPS based on simple building blocks 5. Technology Demonstrations In the proposed effort, we will use two testbeds to demonstrate the benefit of DPS with GaNbased building blocks. These two testbeds are chosen for their potential economic impact. (a) High Density High Efficiency Adapter An adapter is highly driven by efficiency and power density for all forms of portable electronics. An adapter below 65W power level is chosen for the demonstration for its potential economic impact, with a wide range of applications covering a large section of mobile devices, including tablet, notebook, and many other portable electronics equipment. Today, most of the adapters are only operating at a relatively low frequency (<100 khz), with state-of-the-art efficiency up to 91.5%. However, the low-frequency operation limits the adapter power density at 8-11W/in 3. CPES-PMC team will develop a 65W proof-of-concept prototype adapter with GaN devices targeted at an operating frequency above 500 khz. It is anticipated that we will gain a 3-4X size reduction to achieve 30-40W/in 3 in power density with an efficiency of 92%. A possible alternative is to improve the efficiency to 94%, together with a 2X improvement in power density, depending on which is more appealing in the marketplace. In this project, we will collaborate with Transphorm to develop a GaN with targeted design for this application. (b) High Density Off Line Distributed Power Systems In this task, a 1kW data server power system will be demonstrated with GaN-based front-end converters including an EMI filter, a two-phase interleaved totem-pole bridgeless PFCs, and DCX, operating at 1 MHz to achieve W/in 3 power density and above 96% efficiency. The state-of-the-art industry product will be used as a benchmark to demonstrate efficiency and power density improvements. The chosen platform is sufficiently general and can be used in all 5
6 forms of switch-mode power supplies with applications ranging from computer, telecommunication, data centers, mobile electronics devices, and industrial and consumer electronics products. In this project, the PMC team will focus on the following aspects: 1) High-frequency driving circuit with noise immunity to high dv/dt and di/dt for both cascode and enhancement-mode GaN; 2) Evaluation of 600V GaN devices switching losses distribution under hard-switching and soft-switching conditions; 3) Investigation of various PWM and resonant soft-switching topologies not only for switching-loss reduction, but also for minimization of noises and stresses created when circuit parasitics interact with high dv/dt and high di/dt; 4) High-frequency GaN module packaging design with special attention on device packaging and circuit layout to minimize parasitics, including quantification of the effect of parasitics detrimental to switching performances; 5) Characterization of candidate high frequency (1-5MHz) magnetic materials for PFC inductor and DC/DC stage transformer; 6) Innovative magnetics design with preference for high-density, low-profile PCB winding design, if deemed suitable; inductor and transformer design with possibility to reduce loss at light load; distributed magnetic such as matrix transformer, with reduced winding losses and transformer leakage inductance; inverse coupled inductors for multi-phase PFC. Because of high-switching frequencies, both conducted and radiated EMI become more severe moving into the more highly sensitive frequencies bands. Hence, filter design and layout become a primary focus. A full EMI analysis will be performed through simulation and design targets set for the filters, etc. A topology study will be performed inclusive of packaging effects. Results will be used for a centralized EMI filter development. 6. Broader Impact Successful demonstration of GaN devices for the chosen applications will lead to widespread use of GaN devices to replace the predominant Si MOSFET devices for all forms of switchmode power supplies, including but not limited to computer, telecommunication, network products, PV inverters, battery chargers, and industry and consumer electronics. This project is aimed at the development of standardized modular building blocks, instead of custom-designed solutions suitable only for specific applications. This paradigm shift is accompanied by significant improvements in efficiency, power density and cost. Furthermore, the design and fabrication of a power conversion system with GaN-based modules would be aimed at the ease of manufacturing for volume and with less labor content in the assembly process. 6
7 References [1] X. Zhou, P. L. Wong, P. Xu, F.C. Lee and A.Q. Huang, Investigation of Candidate VRM Topologies for Future Microprocessors, IEEE Transactions on Power Electronics, Vol. 15, No. 6, Nov 2000, pp [2] Fred C. Lee, Qiang Li, Overview of Three-Dimension Integration for Point-of-Load Converters IEEE 28th Applied Power Electronics Conference, March [3] S. Ji, D. Reusch, and F. C. Lee, High Frequency High Power Density 3D Integrated Gallium Nitride-Based Point of Load Module Design, IEEE Transactions on Power Electronics, vol. 28, no. 9, pp , September [4] Yipeng Su, Qiang Li, Fred C. Lee, Design and Evaluation of a High-Frequency LTCC Inductor Substrate for a Three-Dimensional Integrated DC/DC Converter, Special Issue: "Power Supply on Chip," IEEE Transactions on Power Electronics, September 2013, Volume 28, No. 9, pp [5] U. K. Mishra, P. Parikh, and Y. Wu, AlGaN/GaN HEMTs an overview of device operation and applications, proc. of the IEEE, vol. 90, no. 6, pp , Jun [6] David Reusch, "High Frequency, High Power Density Integrated Point of Load and Bus Converters Ph.D. Dissertation, Virginia Tech, April 16, [7] Daocheng Huang, Shu Ji, Fred C. Lee, Matrix Transformer for LLC Resonant Converters, Applied Power Electronics Conference, [8] Xiucheng Huang; Zhengyang Liu; Qiang Li; Lee, F.C., "Evaluation and Application of 600 V GaN HEMT in Cascode Structure," IEEE Transactions on Power Electronics, vol.29, no.5, pp.2453,2461, May [9] Xiucheng Huang; Qiang Li; Zhengyang Liu; Lee, F.C., "Analytical Loss Model of High Voltage GaN HEMT in Cascode Configuration," IEEE Transactions on Power Electronics, vol.29, no.5, pp.2208,2219, May 2014 [10] Zhengyang Liu; Xiucheng Huang; Lee, F.C.; Qiang Li, "Package Parasitic Inductance Extraction and Simulation Model Development for the High-Voltage Cascode GaN HEMT," IEEE Transactions on Power Electronics, vol.29, no.4, pp.1977,1985, April 2014 [11] Liu, Zhengyang; Huang, Xiucheng; Zhang, Wenli; Lee, Fred C.; Li, Qiang, "Evaluation of high-voltage cascode GaN HEMT in different packages," Applied Power Electronics Conference and Exposition (APEC), 2014 Twenty-Ninth Annual IEEE, vol., no., pp.168,173, March [12] Xiucheng Huang, Fred. C. Lee, Qiang Li, Weijing Du, High Frequency High Efficiency GaN Based Interleaved CRM Bi-directional Buck/Boost Converter with Coupled Inductor, CPES Conference
8 [13] Xiucheng Huang, Weijing Du, Zhengyang Liu, Fred. C. Lee, Qiang Li, Avoiding Si MOSFET Avalanche and Achieving Zero-Voltage-Switching for Cascode Device, CPES Conference [14] Zhengyang Liu, Xiucheng Huang, Mingkai Mu, Yuchen Yang, Fred C. Lee, Qiang Li; Design and Evaluation of GaN-Based Dual-Phase Interleaved MHz Critical Mode PFC Converter, CPES conference 2014 [15] Y. Wu, M. J. Mitos, M. Moore, and S. Heikman, A 97.8% Efficient GaN HEMT boost converter with 300W output power at 1 MHz, IEEE Electron Device Letters, vol. 29, no. 8, pp , Aug [16] B. Hughes, Y.Y. Yoon, D.M. Zehnder, and K.S. Boutros, A 95% efficient normally-off GaN-on-Si HEMT hybrid-ic boost converter with 425-W output power at 1MHz, in IEEE 2011 Compound Semiconductor Integrated Circuit Symposium, 2011, pp.1-3. [17] B. Hughes, J. Lazar, S. Hulsey, D. Zehnder, D. Matic, and K. Boutros, GaN HFET Switching Characteristics at 350V-20A and Synchronous Boost Converter Performance at 1MHz, in IEEE 2012 Applied Power Electronics Conference, 2012, pp [18] W. Saito, T. Nitta, Y. Kakiuchi, Y. Saito, K. Tsuda, I. Omura, and M. Yamaguchi, A 120- W boost converter operation using a high-voltage GaN-HEMT, IEEE Electron Device Letters, vol. 29, no. 1, pp. 8 10, Jan
Application of GaN Devices for 1 kw Server Power Supply with Integrated Magnetics
CPSS TRANSACTIONS ON POWER ELECTRONICS AND APPLICATIONS, VOL. 1, NO. 1, DECEMBER 2016 3 Application of GaN Devices for 1 kw Server Power Supply with Integrated Magnetics Fred C. Lee, Qiang Li, Zhengyang
More informationEvaluation and Applications of 600V/650V Enhancement-Mode GaN Devices
Evaluation and Applications of 600V/650V Enhancement-Mode GaN Devices Xiucheng Huang, Tao Liu, Bin Li, Fred C. Lee, and Qiang Li Center for Power Electronics Systems, Virginia Tech Blacksburg, VA, USA
More informationGaN Power ICs at 1 MHz+: Topologies, Technologies and Performance
GaN Power ICs at 1 MHz+: Topologies, Technologies and Performance PSMA Industry Session, Semiconductors Dan Kinzer, CTO/COO dan.kinzer@navitassemi.com March 2017 Power Electronics: Speed & Efficiency are
More informationThe Quest for High Power Density
The Quest for High Power Density Welcome to the GaN Era Power Conversion Technology Drivers Key design objectives across all applications: High power density High efficiency High reliability Low cost 2
More informationDesigning High density Power Solutions with GaN Created by: Masoud Beheshti Presented by: Xaver Arbinger
Designing High density Power Solutions with GaN Created by: Masoud Beheshti Presented by: Xaver Arbinger Topics Why GaN? Integration for Higher System Performance Application Examples Taking GaN beyond
More informationDC-DC Transformer Multiphase Converter with Transformer Coupling for Two-Stage Architecture
DC-DC Transformer Multiphase Converter with Transformer Coupling for Two-Stage Architecture M.C.Gonzalez, P.Alou, O.Garcia,J.A. Oliver and J.A.Cobos Centro de Electrónica Industrial Universidad Politécnica
More informationPower of GaN. Enabling designers to create smaller, more efficient and higher-performing AC/DC power supplies
Power of GaN Enabling designers to create smaller, more efficient and higher-performing AC/DC power supplies Steve Tom Product Line Manager, GaN Products stom@ti.com Solving power and energy-management
More informationDesigning reliable and high density power solutions with GaN. Created by: Masoud Beheshti Presented by: Paul L Brohlin
Designing reliable and high density power solutions with GaN Created by: Masoud Beheshti Presented by: Paul L Brohlin What will I get out of this presentation? Why GaN? Integration for System Performance
More informationGaN in Practical Applications
in Practical Applications 1 CCM Totem Pole PFC 2 PFC: applications and topology Typical AC/DC PSU 85-265 V AC 400V DC for industrial, medical, PFC LLC 12, 24, 48V DC telecomm and server applications. PFC
More informationMultiphase Interleaving Buck Converter With Input-Output Bypass Capacitor
2010 Seventh International Conference on Information Technology Multiphase Interleaving Buck Converter With Input-Output Bypass Capacitor Taufik Taufik, Randyco Prasetyo, Arief Hernadi Electrical Engineering
More informationDesign and Analysis of Two-Phase Boost DC-DC Converter
Design and Analysis of Two-Phase Boost DC-DC Converter Taufik Taufik, Tadeus Gunawan, Dale Dolan and Makbul Anwari Abstract Multiphasing of dc-dc converters has been known to give technical and economical
More informationPackage and Integration Technology in Point-of-load Converters. Laili Wang Xi an Jiaotong University Sumida Technology
Package and Integration Technology in Point-of-load Converters Laili Wang Xi an Jiaotong University Sumida Technology Content Introduction Multi-permeability distributed air-gap inductor Multi-permeability
More informationPOWER INVERTERS IN FORM OF MICROMODULE WITH DIRECT LIQUID COOLING.
POWER INVERTERS IN FORM OF MICROMODULE WITH DIRECT LIQUID COOLING Alexander Krainyukov 1, Rodions Saltanovs 2 1 SIA ElGoo Tech, Latvia; 2 Riga Technical University, Latvia krainukovs.a@tsi.lv Abstract.
More informationHigh voltage GaN cascode switches shift power supply design trends. Eric Persson Executive Director, GaN Applications and Marketing
High voltage GaN cascode switches shift power supply design trends Eric Persson Executive Director, GaN Applications and Marketing September 4, 2014 1 Outline for Today s PSMA PTR Presentation Why do we
More informationDesigning Reliable and High-Density Power Solutions with GaN
Designing Reliable and High-Density Power Solutions with GaN 1 Detailed agenda Why is GaN Exciting GaN Fundamentals Cost and Reliability Totem Pole PFC Isolated LLC Motor Drive LiDAR Driving GaN Choosing
More informationUltra-Low Loss 600V 1200V GaN Power Transistors for
Ultra-Low Loss 600V 1200V GaN Power Transistors for High Efficiency Applications David C. Sheridan, D.Y. Lee, Andrew Ritenour, Volodymyr Bondarenko, Jian Yang, and Charles Coleman, RFMD Inc., USA, david.sheridan@rfmd.com
More informationIN 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 informationRecent 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 informationA Lossless Clamp Circuit for Tapped-Inductor Buck Converters*
A Lossless Clamp Circuit for Tapped-Inductor Buck nverters* Kaiwei Yao, Jia Wei and Fred C. Lee Center for Power Electronics Systems The Bradley Department of Electrical and mputer Engineering Virginia
More informationSi, SiC and GaN Power Devices: An Unbiased View on Key Performance Indicators
2016 IEEE Proceedings of the 62nd IEEE International Electron Devices Meeting (IEDM 2016), San Francisco, USA, December 3-7, 2016 Si, SiC and GaN Power Devices: An Unbiased View on Key Performance Indicators
More informationDesign and Simulation of Synchronous Buck Converter for Microprocessor Applications
Design and Simulation of Synchronous Buck Converter for Microprocessor Applications Lakshmi M Shankreppagol 1 1 Department of EEE, SDMCET,Dharwad, India Abstract: The power requirements for the microprocessor
More informationA Novel Transformer Structure for High power, High Frequency converter
A Novel Transformer Structure for High power, High Frequency converter Chao Yan, Fan Li, Jianhong Zeng, Teng Liu, Jianping Ying Delta Power Electronics Center 238 Minxia Road, Caolu Industry Zone, Pudong,
More informationUnlocking 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 informationHigh Frequency GaN-Based Power Conversion Stages
PwSoC Cork 2008 High Frequency GaN-Based Power Conversion Stages Dr. Michael A. Briere ACOO Enterprises LLC 1 Anatomy of a power device driven revolution in power electronics Enabling Rapid Commercialization
More informationFuture Power Architectures for Servers and Proposed Technologies
1 Future Power Architectures for Servers and Proposed Technologies by Ming Xu Sep. 12, 2006 Center For Power Electronics Systems A National Science Foundation Engineering Research Center Virginia Tech,
More informationHigh Frequency Soft Switching Of PWM Boost Converter Using Auxiliary Resonant Circuit
RESEARCH ARTICLE OPEN ACCESS High Frequency Soft Switching Of PWM Boost Converter Using Auxiliary Resonant Circuit C. P. Sai Kiran*, M. Vishnu Vardhan** * M-Tech (PE&ED) Student, Department of EEE, SVCET,
More informationCost effective resonant DC-DC converter for hi-power and wide load range operation.
Cost effective resonant DC-DC converter for hi-power and wide load range operation. Alexander Isurin(sashai@vanner.com) and Alexander Cook(alecc@vanner.com) Vanner Inc, Hilliard, Ohio Abstract- This paper
More informationMultitrack Power Factor Correction Architecture
Multitrack Power Factor Correction Architecture Minjie Chen, Sombuddha Chakraborty, David Perreault Princeton University Texas Instruments Massachusetts Institute of Technology 978-1-5386-1180-7/18/$31.00
More informationDesign Considerations for VRM Transient Response Based on the Output Impedance
1270 IEEE TRANSACTIONS ON POWER ELECTRONICS, VOL. 18, NO. 6, NOVEMBER 2003 Design Considerations for VRM Transient Response Based on the Output Impedance Kaiwei Yao, Student Member, IEEE, Ming Xu, Member,
More informationThe First Step to Success Selecting the Optimal Topology Brian King
The First Step to Success Selecting the Optimal Topology Brian King 1 What will I get out of this session? Purpose: Inside the Box: General Characteristics of Common Topologies Outside the Box: Unique
More informationDemands for High-efficiency Magnetics in GaN Power Electronics
APEC 2014, Fort Worth, Texas, March 16-20, 2014, IS2.5.3 Demands for High-efficiency Magnetics in GaN Power Electronics Yifeng Wu, Transphorm Inc. Table of Contents 1. 1 st generation 600V GaN-on-Si HEMT
More informationA NEW SINGLE STAGE THREE LEVEL ISOLATED PFC CONVERTER FOR LOW POWER APPLICATIONS
A NEW SINGLE STAGE THREE LEVEL ISOLATED PFC CONVERTER FOR LOW POWER APPLICATIONS S.R.Venupriya 1, Nithyananthan.K 2, Ranjidharan.G 3, Santhosh.M 4,Sathiyadevan.A 5 1 Assistant professor, 2,3,4,5 Students
More informationIn Search of Powerful Circuits: Developments in Very High Frequency Power Conversion
Massachusetts Institute of Technology Laboratory for Electromagnetic and Electronic Systems In Search of Powerful Circuits: Developments in Very High Frequency Power Conversion David J. Perreault Princeton
More informationApril 7-9, CPES Annual Power Electronics Conference Proceedings. Participating University. Dr. Fred C. Lee, Center Director
Center for Power Electronics Systems An Engineering Research Center CPES Annual Power Electronics Conference Proceedings April 7-9, 2013 Dr. Fred C. Lee, Center Director Virginia Polytechnic Institute
More informationPrecise Analytical Solution for the Peak Gain of LLC Resonant Converters
680 Journal of Power Electronics, Vol. 0, No. 6, November 200 JPE 0-6-4 Precise Analytical Solution for the Peak Gain of LLC Resonant Converters Sung-Soo Hong, Sang-Ho Cho, Chung-Wook Roh, and Sang-Kyoo
More informationMODELING AND SIMULATION OF LLC RESONANT CONVERTER FOR PHOTOVOLTAIC SYSTEMS
MODELING AND SIMULATION OF LLC RESONANT CONVERTER FOR PHOTOVOLTAIC SYSTEMS Shivaraja L M.Tech (Energy Systems Engineering) NMAM Institute of Technology Nitte, Udupi-574110 Shivaraj.mvjce@gmail.com ABSTRACT
More informationAdvanced Silicon Devices Applications and Technology Trends
Advanced Silicon Devices Applications and Technology Trends Gerald Deboy Winfried Kaindl, Uwe Kirchner, Matteo Kutschak, Eric Persson, Michael Treu APEC 2015 Content Silicon devices versus GaN devices:
More informationCENTER PROGRAM SNAPSHOT
Center for Power Electronics Systems APRIL 2009 CENTER PROGRAM SNAPSHOT FRED C. LEE DIRECTOR DUSHAN BOROYEVICH CO-DIRECTOR Cover: An early IPEM for high-efficiency distributed power systems from the Convergence
More information1997 VPEC SEMINAR PROCEEDINGS
1997 VPEC SEMINAR PROCEEDINGS THE FIFTEENTH ANNUAL VPEC POWER ELECTRONICS SEMINAR September 28-30,1997 Virginia Tech Blacksburg, Virginia VIRGINIA POWER ELECTRONICS CENTER Sponsored by UB/TIB Hannover
More informationInvestigation of DC-DC Converter Topologies for Future Microprocessor
Asian Power Electronics Journal, Vol., No., Oct 008 Investigation of DC-DC Converter Topologies for Future Microprocessor K. Rajambal P. Sanjeevikumar G. Balaji 3 Abstract Future generation microprocessors
More informationImproving Performance of High Speed GaN Transistors Operating in Parallel for High Current Applications
Improving Performance of High Speed GaN Transistors Operating in Parallel for High Current Applications David Reusch and Johan Strydom Efficient Power Conversion Corporation (EPC), El Segundo, CA, USA.
More informationDesign of Low-Profile Integrated Transformer and Inductor for Substrate-Embedding in 1-5kW Isolated GaN DC-DC Converters
Design of Low-Profile Integrated Transformer and Inductor for Substrate-Embedding in 1-5kW Isolated GaN DC-DC Converters Haksun Lee, Vanessa Smet, P. M. Raj, Rao Tummala 3D Systems Packaging Research Center
More informationVIENNA Rectifier & Beyond...
VIENNA Rectifier & Beyond... Johann W. Kolar et al. Swiss Federal Institute of Technology (ETH) Zurich Power Electronic Systems Laboratory www.pes.ee.ethz.ch VIENNA Rectifier & Beyond... J. W. Kolar, L.
More informationParalleling of LLC Resonant Converters using Frequency Controlled Current Balancing
PESC8, Rhodes, Greece Paralleling of LLC Resonant Converters using Frequency Controlled Current Balancing H. Figge *, T. Grote *, N. Froehleke *, J. Boecker * and P. Ide ** * University of Paderborn, Power
More informationFuel Cell Based Interleaved Boost Converter for High Voltage Applications
International Journal for Modern Trends in Science and Technology Volume: 03, Issue No: 05, May 2017 ISSN: 2455-3778 http://www.ijmtst.com Fuel Cell Based Interleaved Boost Converter for High Voltage Applications
More informationA Novel Concept in Integrating PFC and DC/DC Converters *
A Novel Concept in Integrating PFC and DC/DC Converters * Pit-Leong Wong and Fred C. Lee Center for Power Electronics Systems The Bradley Department of Electrical and Computer Engineering Virginia Polytechnic
More informationInvestigating Enhancement Mode Gallium Nitride Power FETs in High Voltage, High Frequency Soft Switching Converters
Downloaded from orbit.dtu.dk on: Aug 22, 2018 Investigating Enhancement Mode Gallium Nitride Power FETs in High Voltage, High Frequency Soft Switching Converters Nour, Yasser; Knott, Arnold; Jørgensen,
More informationInternational Journal of Current Research and Modern Education (IJCRME) ISSN (Online): & Impact Factor: Special Issue, NCFTCCPS -
HIGH VOLTAGE BOOST-HALF- BRIDGE (BHB) CELLS USING THREE PHASE DC-DC POWER CONVERTER FOR HIGH POWER APPLICATIONS WITH REDUCED SWITCH V. Saravanan* & R. Gobu** Excel College of Engineering and Technology,
More informationMonolithic integration of GaN power transistors integrated with gate drivers
October 3-5, 2016 International Workshop on Power Supply On Chip (PwrSoC 2016) Monolithic integration of GaN power transistors integrated with gate drivers October 4, 2016 Tatsuo Morita Automotive & Industrial
More informationDesign and Implementation of Non-Isolated Full Bridge LLC Resonant Converter
Design and Implementation of Non-Isolated Full Bridge LLC Resonant Converter Meera M 1, Vinoth J 1, Muruganandam M 2 PG Scholar, Department of EEE, Muthayammal Engineering College, Rasipuram, Namakkal,
More informationPOWER ISIPO 29 ISIPO 27
SI NO. TOPICS FIELD ISIPO 01 A Low-Cost Digital Control Scheme for Brushless DC Motor Drives in Domestic Applications ISIPO 02 A Three-Level Full-Bridge Zero-Voltage Zero-Current Switching With a Simplified
More informationDepartment of EEE, SCAD College of Engineering and Technology, Tirunelveli, India, #
IJESRT INTERNATIONAL JOURNAL OF ENGINEERING SCIENCES & RESEARCH TECHNOLOGY CURRENT BALANCING IN MULTIPHASE CONVERTER BASED ON INTERLEAVING TECHNIQUE USING FUZZY LOGIC C. Dhanalakshmi *, A. Saravanan, R.
More informationBehavioral Analysis of Three stage Interleaved Synchronous DC-DC Converter for VRM Applications
Behavioral Analysis of Three stage Interleaved Synchronous DC-DC Converter for VRM Applications Basavaraj V. Madiggond#1, H.N.Nagaraja*2 #M.E, Dept. of Electrical and Electronics Engineering, Jain College
More informationIBM Technology Symposium
IBM Technology Symposium Impact of Input Voltage on Server PSU- Efficiency, Power Density and Cost Design. Build. Ship. Service. Sriram Chandrasekaran November 13, 2012 Presentation Outline Redundant Server
More informationPhD Dissertation Defense Presentation
PhD Dissertation Defense Presentation Wednesday, September 11th, 2013 9:30am 11:00am C103 Engineering Research Complex THEORETICAL ANALYSIS AND REDUCTION TECHNIQUES OF DC CAPACITOR RIPPLES AND REQUIREMENTS
More informationStudent Department of EEE (M.E-PED), 2 Assitant Professor of EEE Selvam College of Technology Namakkal, India
Design and Development of Single Phase Bridgeless Three Stage Interleaved Boost Converter with Fuzzy Logic Control System M.Pradeep kumar 1, M.Ramesh kannan 2 1 Student Department of EEE (M.E-PED), 2 Assitant
More informationWide Band-Gap Semiconductors GaN & SiC
Who What Where When Why Wide Band-Gap Semiconductors GaN & SiC Your 2015 APEC Rap Session - 17 of March 2015 Charlotte, NC Wide Band Gap - Rap Session 2015 Schedule Panelists introduction Introduction
More informationInvestigation of High-density Integrated Solution for AC/DC Conversion of a Distributed Power System. Bing Lu
Investigation of High-density Integrated Solution for AC/DC Conversion of a Distributed Power System Bing Lu Dissertation submitted to the faculty of the Virginia Polytechnic Institute and State University
More information1,101. The diagram of the proposed battery charger is shown in the Fig. 1, which is a two-stage AC-DC converter consisting of
IEEE PEDS 27, Honolulu, USA 2 5 December 27 A Ripple Reduction Method for a Two Stages Battery Charger with Multi-winding Transformer using Notch Filter Haimeng Wu*,Volker Pickert*, Simon Lambert*, Peter
More informationPC Krause and Associates, Inc.
Common-mode challenges in high-frequency switching converters 14 NOV 2016 Nicholas Benavides, Ph.D. (Sr. Lead Engineer) 3000 Kent Ave., Suite C1-100 West Lafayette, IN 47906 (765) 464-8997 (Office) (765)
More informationElectromagnetic Compatibility and Better Harmonic Performance with Seven Level CHB Converter Based PV-Battery Hybrid System
Electromagnetic Compatibility and Better Harmonic Performance with Seven Level CHB Converter Based PV-Battery Hybrid System A. S. S. Veerendra Babu 1, G. Kiran Kumar 2 1 M.Tech Scholar, Department of EEE,
More informationA 82.5% Power Efficiency at 1.2 mw Buck Converter with Sleep Control
JOURNAL OF SEMICONDUCTOR TECHNOLOGY AND SCIENCE, VOL.16, NO.6, DECEMBER, 2016 ISSN(Print) 1598-1657 https://doi.org/10.5573/jsts.2016.16.6.842 ISSN(Online) 2233-4866 A 82.5% Power Efficiency at 1.2 mw
More informationPARALLELING of converter power stages is a wellknown
690 IEEE TRANSACTIONS ON POWER ELECTRONICS, VOL. 13, NO. 4, JULY 1998 Analysis and Evaluation of Interleaving Techniques in Forward Converters Michael T. Zhang, Member, IEEE, Milan M. Jovanović, Senior
More informationHybrid Synchronous DC-DC Buck Power Converter using Si and GaN Transistors
1 Hybrid Synchronous DC-DC Buck Power Converter using Si and GaN Transistors Mohammad H. Hedayati 1, Pallavi Bharadwaj 2, Vinod John 2 1 School of Engineering, University of Aberdeen 2 Department of Electrical
More informationTRENCHSTOP 5 boosts efficiency in Home Appliance, Solar and Welding Applications
TRENCHSTOP 5 boosts efficiency in Home Appliance, Solar and Welding Applications Davide Chiola - Senior Mgr IGBT Application Engineering Mark Thomas Product Marketing Mgr Discrete IGBT Infineon Technologies
More informationQuest for the Optimum Power Distribution Architecture
1 Quest for the Optimum Power Distribution Architecture Which power distribution architectures can efficiently support power systems from wall plugs, AC or DC outlets, through capacitors, super-capacitors
More informationDC Transformer. DCX derivation: basic idea
DC Transformer Ultimate switched-mode power converter: Minimum possible voltage and current stresses on all components Zero-voltage switching of all semiconductor devices It is possible to approach the
More informationGallium nitride technology in server and telecom applications
White Paper Gallium nitride technology in server and telecom applications The promise of GaN in light of future requirements for power electronics Abstract This paper will discuss the benefits of e-mode
More informationINTERNATIONAL JOURNAL OF ELECTRICAL ENGINEERING & TECHNOLOGY (IJEET)
INTERNATIONAL JOURNAL OF ELECTRICAL ENGINEERING & TECHNOLOGY (IJEET) International Journal of Electrical Engineering and Technology (IJEET), ISSN 0976 ISSN 0976 6545(Print) ISSN 0976 6553(Online) Volume
More informationCore-less Multiphase Converter with Transformer Coupling
Coreless Multiphase Converter with Transformer Coupling M.C.Gonzalez, N.Ferreros, P.Alou, O.Garcia, J.Oliver, J.A.Cobos Centro de Electrónica Industrial Universidad Politecnica de Madrid Madrid, España
More informationGet Your GaN PhD in Less Than 60 Minutes!
Get Your GaN PhD in Less Than 60 Minutes! 1 Detailed agenda Why is GaN Exciting GaN Fundamentals Cost and Reliability Totem Pole PFC Isolated LLC Motor Drive LiDAR Driving GaN Choosing a GaN Tools 4 Why
More informationOn-Wafer Integration of Nitrides and Si Devices: Bringing the Power of Polarization to Si
On-Wafer Integration of Nitrides and Si Devices: Bringing the Power of Polarization to Si The MIT Faculty has made this article openly available. Please share how this access benefits you. Your story matters.
More informationEMI Mitigation and Containment in SiC-Based Modular UPS for Commercial Applications
College of Engineering HDI CPES-Consortium Center for Power Electronics Systems The Bradley Department of Electrical and Computer Engineering College of Engineering Virginia Tech Blacksburg, Virginia,
More informationBreaking Speed Limits with GaN Power ICs March 21 st 2016 Dan Kinzer, COO/CTO
Breaking Speed Limits with GaN Power ICs March 21 st 2016 Dan Kinzer, COO/CTO dan.kinzer@navitassemi.com 1 Efficiency The Need for Speed Tomorrow? Today 100kHz 1MHz 10MHz Bulky, Heavy Small, Light & Expensive
More informationAn Interleaved High Step-Up Boost Converter With Voltage Multiplier Module for Renewable Energy System
An Interleaved High Step-Up Boost Converter With Voltage Multiplier Module for Renewable Energy System Vahida Humayoun 1, Divya Subramanian 2 1 P.G. Student, Department of Electrical and Electronics Engineering,
More informationACEEE Int. J. on Control System and Instrumentation, Vol. 02, No. 02, June 2011
A New Active Snubber Circuit for PFC Converter Burak Akýn Yildiz Technical University/Electrical Engineering Department Istanbul TURKEY Email: bakin@yildizedutr ABSTRACT In this paper a new active snubber
More informationPerformance Evaluation of Bridgeless PFC Boost Rectifiers
Performance Evaluation of Bridgeless PFoost Rectifiers Laszlo Huber, Yungtaek Jang, and Milan M. Jovanović Delta Products Corporation Power Electronics Laboratory P.O. Box 12173 5101 Davis Drive RTP, NC
More informationSoft-Switching Two-Switch Resonant Ac-Dc Converter
Soft-Switching Two-Switch Resonant Ac-Dc Converter Aqulin Ouseph 1, Prof. Kiran Boby 2,, Prof. Dinto Mathew 3 1 PG Scholar,Department of Electrical and Electronics Engineering, Mar Athanasius College of
More informationGaN-Based High-Efficiency, High- Density, High-Frequency Battery Charger for Plug-in Hybrid Electric Vehicle
GaN-Based High-Efficiency, High- Density, High-Frequency Battery Charger for Plug-in Hybrid Electric Vehicle Lingxiao Xue Dissertation submitted to the faculty of the Virginia Polytechnic Institute and
More informationPerformance Improvement of Bridgeless Cuk Converter Using Hysteresis Controller
International Journal of Electrical Engineering. ISSN 0974-2158 Volume 6, Number 1 (2013), pp. 1-10 International Research Publication House http://www.irphouse.com Performance Improvement of Bridgeless
More informationMaking Reliable and High-Density GaN Solutions a Reality
Making Reliable and High-Density GaN Solutions a Reality December 5, 2017 Franz Xaver Arbinger Masoud Beheshti 1 Today s Topics Why is GaN Exciting GaN Fundamentals Cost and Reliability Totem Pole PFC
More informationA new era in power electronics with Infineon s CoolGaN
A new era in power electronics with Infineon s CoolGaN Dr. Gerald Deboy Senior Principal Power Discretes and System Engineering Power management and multimarket division Infineon will complement each of
More informationPerformance Evaluation of GaN based PFC Boost Rectifiers
Performance Evaluation of GaN based PFC Boost Rectifiers Srinivas Harshal, Vijit Dubey Abstract - The power electronics industry is slowly moving towards wideband semiconductor devices such as SiC and
More informationHigh-Power-Density 400VDC-19VDC LLC Solution with GaN HEMTs
High-Power-Density 400VDC-19VDC LLC Solution with GaN HEMTs Yajie Qiu, Lucas (Juncheng) Lu GaN Systems Inc., Ottawa, Canada yqiu@gansystems.com Abstract Compared to Silicon MOSFETs, GaN Highelectron-Mobility
More informationDesign Considerations for 12-V/1.5-V, 50-A Voltage Regulator Modules
776 IEEE TRANSACTIONS ON POWER ELECTRONICS, VOL. 16, NO. 6, NOVEMBER 2001 Design Considerations for 12-V/1.5-V, 50-A Voltage Regulator Modules Yuri Panov and Milan M. Jovanović, Fellow, IEEE Abstract The
More informationAnalysis of Novel DC-DC Boost Converter topology using Transfer Function Approach
Analysis of Novel DC-DC Boost Converter topology using Transfer Function Approach Satyanarayana V, Narendra. Bavisetti Associate Professor, Ramachandra College of Engineering, Eluru, W.G (Dt), Andhra Pradesh
More informationENERGY saving through efficient equipment is an essential
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, VOL. 61, NO. 9, SEPTEMBER 2014 4649 Isolated Switch-Mode Current Regulator With Integrated Two Boost LED Drivers Jae-Kuk Kim, Student Member, IEEE, Jae-Bum
More informationGallium nitride technology in adapter and charger applications
White Paper Gallium nitride technology in adapter and charger applications The promise of GaN in light of future requirements for power electronics Abstract This paper will discuss the benefits of e-mode
More informationIEEE EMC Society Santa Clara Valley Chapter. on the on IEEE EMC SCV on IEEE EMC SCV
IEEE EMC Society Santa Clara Valley Chapter on the web @ www.scvemc.org on linkedin @ IEEE EMC SCV on facebook @ IEEE EMC SCV www.scvemc.org Gold Sponsor Silver Sponsor www.scvemc.org Host : Sign up sheet
More informationAnalysis and Design of a Bidirectional Isolated buck-boost DC-DC Converter with duel coupled inductors
Analysis and Design of a Bidirectional Isolated buck-boost DC-DC Converter with duel coupled inductors B. Ramu M.Tech (POWER ELECTRONICS) EEE Department Pathfinder engineering college Hanmakonda, Warangal,
More informationDigital Control for Power Electronics 2.0
Digital Control for Power Electronics 2.0 Michael Harrison 9 th November 2017 Driving Factors for Improved SMPS Control 2 End market requirements for improved SMPS performance: Power conversion efficiency
More informationDC DC CONVERTER FOR WIDE OUTPUT VOLTAGE RANGE BATTERY CHARGING APPLICATIONS USING LLC RESONANT
Volume 114 No. 7 2017, 517-530 ISSN: 1311-8080 (printed version); ISSN: 1314-3395 (on-line version) url: http://www.ijpam.eu ijpam.eu DC DC CONVERTER FOR WIDE OUTPUT VOLTAGE RANGE BATTERY CHARGING APPLICATIONS
More informationWide 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 informationA DUAL SERIES DC TO DC RESONANT CONVERTER
A DUAL SERIES DC TO DC RESONANT CONVERTER V.ANANDHAN.,BE., ME, POWER SYSTEM SCSVMU UNIVERSITY anandhanvelu@gmail.com Dr.S.SENTAMIL SELVAN.,M.E.,Ph.D., ASSOCIATE PROFESSOR SCSVMU UNIVERSITY Abstract - A
More informationGate Drive Optimisation
Gate Drive Optimisation 1. Background Driving of gates of MOSFET, IGBT and SiC/GaN switching devices is a fundamental requirement in power conversion. In the case of ground-referenced drives this is relatively
More informationMiniaturized High-Frequency Integrated Power Conversion for Grid Interface
Massachusetts Institute of Technology Laboratory for Electromagnetic and Electronic Systems Miniaturized High-Frequency Integrated Power Conversion for Grid Interface David J. Perreault Seungbum Lim David
More informationRECENTLY, newly emerging power-electronics applications
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I: REGULAR PAPERS, VOL. 54, NO. 8, AUGUST 2007 1809 Nonisolation Soft-Switching Buck Converter With Tapped-Inductor for Wide-Input Extreme Step-Down Applications
More informationStudy On Two-stage Architecture For Synchronous Buck Converter In High-power-density Power Supplies title
Study On Two-stage Architecture For Synchronous Buck Converter In High-power-density Computing Click to add presentation Power Supplies title Click to edit Master subtitle Tirthajyoti Sarkar, Bhargava
More informationCurrent-Doubler Based Multiport DC/DC Converter with Galvanic Isolation
CurrentDoubler Based Multiport DC/DC Converter with Galvanic Isolation Yoshinori Matsushita, Toshihiko Noguchi, Osamu Kimura, and Tatsuo Sunayama Shizuoka University and Yazaki Corporation matsushita.yoshinori.15@shizuoka.ac.jp,
More informationA Solution to Simplify 60A Multiphase Designs By John Lambert & Chris Bull, International Rectifier, USA
A Solution to Simplify 60A Multiphase Designs By John Lambert & Chris Bull, International Rectifier, USA As presented at PCIM 2001 Today s servers and high-end desktop computer CPUs require peak currents
More information