Results 171 to 180 of about 3,136 (196)

A zero-current switching (ZCS) current source converter for high-frequency PWM applications

IECON 2016 - 42nd Annual Conference of the IEEE Industrial Electronics Society, 2016
In this paper, a zero-current switching (ZCS) current source converter (CSC) topology is proposed by adding an auxiliary circuit between the dc side. During each commutating process, the auxiliary circuit is activated, so that the outgoing switches can be turned off with zero current switching. As a result, all active switches can reach ZCS operations.
null Zhihong Bai, null Chushan Li, null David Xu   +2 more
openaire   +1 more source

Power factor pre-regulator (PFP) with an improved zero-current-switching (ZCS) PWM switch cell

Proceedings of the Power Conversion Conference-Osaka 2002 (Cat. No.02TH8579), 2003
This paper proposes a new boost power factor preregulator (PFP) featuring zero-current-switching (ZCS). By employing an improved ZCS PWM switch cell, ZCS of all the active switches is achieved without additional current stress of the main switch. The additional conduction loss is reduced, since the circulating current for the soft switching flows only ...
null Hang-Seok Choi, B.H. Cho
openaire   +1 more source

Zero-current-switching (ZCS) power factor pre-regulator (PFP) with reduced conduction losses

APEC. Seventeenth Annual IEEE Applied Power Electronics Conference and Exposition (Cat. No.02CH37335), 2003
This paper proposes a new boost power factor pre-regulator (PFP) featuring zero-current-switching (ZCS). By employing an improved ZCS pulse-width-modulation (PWM) switch cell, ZCS of all the active switches is achieved without additional current stress of the main switch. The additional conduction losses are minimized, since the circulating current for
null Hang-Seok Choi, B.H. Cho
openaire   +1 more source

Analysis and design of a flyback zero-current switched (ZCS) quasi-resonant (QR) AC/DC converter

PESC Record. 27th Annual IEEE Power Electronics Specialists Conference, 2002
The flyback zero-current switched quasi-resonant AC/DC converter, functioning as a power factor correction regulator, is presented and analyzed in detail in this paper. Only one active switch with simple control logic is required to achieve both input current waveshaping and output voltage regulation.
G.A. Karveis, S.N. Manias
openaire   +1 more source

A new family of zero-current-switching PWM converters and a novel HPF-ZCS-PWM boost rectifier

APEC '99. Fourteenth Annual Applied Power Electronics Conference and Exposition. 1999 Conference Proceedings (Cat. No.99CH36285), 1999
This work presents a new family of DC to DC converters based on a new zero-current-switching (ZCS) pulse-width-modulated (PWM) soft-commutation cell. Two transistors (main and auxiliary switches), two diodes, two small resonant inductors and one resonant capacitor compose this commutation cell, appropriated to operate with insulated-gate bipolar ...
Wakabayashi, Fabio Toshiaki, Canesin, Carlos Alberto   +1 more
openaire   +2 more sources

Novel zero-current-switching (ZCS) PWM converters

IECON'03. 29th Annual Conference of the IEEE Industrial Electronics Society (IEEE Cat. No.03CH37468), 2004
A new family of zero-current-switching (ZCS) pulsewidth-modulated (PWM) converters which uses a new ZCS PWM switch cell is presented in this paper. The main switch and auxiliary switch operate at zero-current-switching turn on and turn off, and the all passive semiconductor devices in the ZCS-PWM converter operate at zero-voltage-switching (ZVS) turn ...
openaire   +1 more source

A New Family of Zero-Current-Switching (ZCS) PWM Converters

IEEE Transactions on Industrial Electronics, 2005
A new family of zero-current-switching (ZCS) pulsewidth-modulated (PWM) converters which uses a new ZCS-PWM switch cell is presented in this paper. The main switch and auxiliary switch operate at ZCS turn-on and turn-off, and all the passive semiconductor devices in the ZCS-PWM converter operate at zero-voltage-switching (ZVS) turn-on and turn-off ...
openaire   +1 more source

Digital-Based Zero-Current Switching (ZCS) Control Schemes for Three-Level Boost Power-Factor Correction (PFC) Converter

2020
Doctor of ...
openaire   +1 more source

Engineered platforms for topological superconductivity and Majorana zero modes

Nature Reviews Materials, 2021
Karsten Flensberg, Felix von Oppen, Ady Stern   +2 more
exaly  

Integrated solar-driven PV cooling and seawater desalination with zero liquid discharge

Joule, 2021
Wenbin Wang, Sara Aleid, Chenlin Zhang
exaly