Proceedings ArticleDOI
A novel family of DC-DC PWM converters using the self-resonance principle
N.P. Filho,V. Jose Farias,L. Carlos,L.C. de Freitas +3 more
- Vol. 2, pp 1385-1391
Reads0
Chats0
TLDR
A new class of commutation self-resonant PWM power convertor that overcomes this great disadvantage as well as being able to operate without switching losses in high switching frequencies for a wide line and load range is presented.Abstract:
Obtaining soft-switching operation for PWM power converters, except for a few cases, has required either high switch voltage stresses or high switch current stresses, or both. This paper presents a new class of commutation self-resonant PWM power convertor that overcomes this great disadvantage as well as being able to operate without switching losses in high switching frequencies for a wide line and load range. The circuit diagram and the phase-plane of each power converter of a family of such converters are also presented. In order to emphasize the principal characteristics of these new converters, a study, including experimental results, is carried out in detail for the buck and zeta converters. >read more
Citations
More filters
Journal ArticleDOI
State-of-the-art, single-phase, active power-factor-correction techniques for high-power applications - an overview
Milan M. Jovanovic,Yungtaek Jang +1 more
TL;DR: The merits and limitations of several PFC techniques used in today's network-server and telecom power supplies to maximize their conversion efficiencies are discussed, and the effect of recent advancements in semiconductor technology on the performance and design considerations of PFC converters is discussed.
Journal ArticleDOI
Analysis and Design of a New High-Efficiency Bidirectional Integrated ZVT PWM Converter for DC-Bus and Battery-Bank Interface
Luciano Schuch,Cassiano Rech,Helio Leaes Hey,Hilton Abilio Grundling,Humberto Pinheiro,Jose Renes Pinheiro +5 more
TL;DR: In this article, the authors proposed a high-efficiency bidirectional integrated zerovoltage transition (iZVT) pulsewidth-modulation (PWM) converter for dc-bus and battery-bank interface.
Journal ArticleDOI
A new family of zero-voltage-transition PWM converters with dual active auxiliary circuits
Wannian Huang,Gerry Moschopoulos +1 more
TL;DR: In this article, a new family of active auxiliary circuits that allow the power switch in single switch, pulsewidth modulated converters to operate with zero-voltage switching is proposed, which is an improvement over previous proposed auxiliary circuits where either the auxiliary switch operates with a hard turnoff or the circuit itself increases the peak current stresses of the main switch.
Journal ArticleDOI
Zero-Voltage-Transition PWM Converters With Synchronous Rectifier
Ehsan Adib,Hosein Farzanehfard +1 more
TL;DR: In this article, a synchronous rectifier (SR) was used to decrease the conduction losses of the rectifier switch body diode and increase the achieved soft switching range.
Journal ArticleDOI
A new soft-switched PFC boost rectifier with integrated flyback converter for stand-by power
TL;DR: In this paper, a magnetic integration approach that reduces the number of magnetic components in a power supply by integrating magnetic component in two conversion stages is presented, where a single transformer is used to implement the continuous-conduction-mode boost power-factor-corrected (PFC) converter and the dc/dc flyback converter.
References
More filters
Journal ArticleDOI
Novel zero-voltage-transition PWM converters
TL;DR: In this paper, a class of zero voltage transition (ZVT) power converters is proposed in which both the transistor and the rectifier operate with zero voltage switching and are subjected to minimum voltage and current stresses.
Journal ArticleDOI
High-frequency quasi-resonant converter technologies
TL;DR: In this article, a host of new quasi-resonant converters (QRCs) are derived from conventional PWM converters, with a significant improvement in performance and power density.
Journal ArticleDOI
A high-power high-frequency ZCS-ZVS-PWM buck converter using a feedback resonant circuit
TL;DR: In this paper, a buck DC-DC power converter using a novel lossless commutation cell for high switching frequency and high power operation is presented, which consists of a main switch and an auxiliary switch, with ZVS (zero voltage switched) and ZCS (zero current switched) switching characteristics, respectively.
Proceedings ArticleDOI
A novel ZCS-ZVS-PWM DC-DC buck converter for high power and high switching frequency: analysis, simulation and experimental results
TL;DR: In this article, a buck power converter using a zero current switching zero voltage switching PWM (ZCS-ZVS-PWM) cell for high switching frequency and high power operation is presented.
Proceedings ArticleDOI
An optimum ZVS-PWM DC-to-DC converter family: analysis, simulation and experimental results
TL;DR: In this paper, the authors considered a family of DC-to-DC power converters using the lossless commutation pulsewidth-modulation (PWM) source feeding resonant disconnecting circuit cell with resonant cycle interruption (LC-PWM-SF-RDC) to overcome the problems present in quasi-resonant converters.