Results 21 to 30 of about 266 (133)

High performance single stage power factor correction circuit

IET Power Electronics, Volume 15, Issue 2, Page 145-154, 5 February 2022., 2022
Abstract Here, a new single stage single switch soft switching PFC (power factor correction) converter is presented and analysed. The proposed converter combines buck AC‐DC converter and forward DC‐DC converter and applies an auxiliary circuit to eliminate input current dead angle.
Masoud Ghazali, Ehsan Adib
wiley   +1 more source

Combining electric vehicle battery charging and battery cell equalisation in one circuit

IET Electrical Systems in Transportation, Volume 11, Issue 4, Page 377-390, December 2021., 2021
Abstract Electric vehicles (EVs) require an onboard battery charger unit and a battery management system (BMS) unit that balances the voltage levels for each battery cell. So far, both units are two completely autarkic power electronics systems. The circuit presented here operates as a battery charger when the EV is connected to the grid and as a ...
Huaxia Zhan, Haimeng Wu, Musbahu Muhammad, Simon Lambert, Volker Pickert   +4 more
wiley   +1 more source

Soft‐switching non‐isolated high step‐up three‐level boost converter using single magnetic element

IET Power Electronics, Volume 14, Issue 14, Page 2324-2336, 4 November 2021., 2021
Abstract Here, a soft switched three‐level boost converter with high voltage gain is proposed which is suitable for high step‐up applications with wide output power range. In this converter, a ZVT auxiliary circuit is used which provides soft switching in a wide range of output power independent of load variation.
Hamed Moradmand Jazi, Mahmoud Fekri, Milad Keshani, Ramin Rahimzadeh Khorasani, Ehsan Adib, Patrick Wheeler, Herminio‐Martinez Garcia, Guillermo Velasco‐Quesada   +7 more
wiley   +1 more source

A soft‐switching inverting high step‐down converter with a pair of coupled inductors and self‐driven synchronous rectifier

IET Power Electronics, Volume 14, Issue 15, Page 2441-2451, 25 November 2021., 2021
Abstract In this paper, a non‐isolated coupled‐inductor high step‐down converter with extended duty cycle is proposed, which operates under discontinuous conduction mode. The soft‐switching condition is provided for all the switches and diodes, which results in the reduction of the switching losses, and the losses related to diode reverse recovery ...
Farzad Hosseinabadi, Behzad Soleymani, Ehsan Adib, Md. Rabiul Islam, Hosein Farzanehfard, Abbas Z. Kouzani, M. A. Parvez Mahmud   +6 more
wiley   +1 more source

A New SEPIC-Flyback DC-DC Converter for Fuel Cell Systems [PDF]

Hydrogen, Fuel Cell & Energy Storage
In this study, a SEPIC converter featuring a novel lossless snubber circuit is proposed for fuel cell applications. In the proposed topology, the main switch turns on under Zero-Current Switching (ZCS) conditions and turns off under Zero-Voltage ...
Ali Janghorban, Majid Delshad, Bahador Fani   +2 more
doaj   +1 more source

A novel regenerative snubber circuit for flyback topology converters [PDF]

, 2020
Switch mode power suppliers based on isolated flyback topology have voltage stresses on semiconductor switches caused by transformer leakage inductance.
Baurzhan Tultaev, Gulsara Yestemessova, Aliya Yelemanova, Gani Balbayev, Arailym Nussibaliyeva, Erlan Dzhunusbekov   +5 more
core   +1 more source

An Improved Zero Current Transition High Step-Up Single-Switch Converter for Fuel Cell Applications [PDF]

Hydrogen, Fuel Cell & Energy Storage
In this sudy, a new high step-up converter with reduced input current ripple and low voltage stress is presented. The converter features a minimal number of components, leading to reduced volume and cost.
Rasol Sareban, Mohammadreza Amini, Majid Delshad, Mohammad Rouhollah Yazdani   +3 more
doaj   +1 more source

Passive lossless snubber for double‐ended flyback converter

IET Power Electronics, 2015
Double‐ended flyback converter is one of the most popular topologies employed as a power supply or a power factor correction converter. Reducing switching losses at high switching frequencies is essential. In this study, a passive lossless snubber for double‐ended flyback converter is introduced.
Mehdi Mohammadi, Ehsan Adib, Hosein Farzanehfard   +2 more
openaire   +1 more source

A Modified Isolated Z‐Source AC–AC Converter With Inherent Commutation and Reduced Polarity Changer Switches

IET Power Electronics, Volume 19, Issue 1, January/December 2026.
In this paper, a modified isolated Z‐source AC–AC converter with inherent commutation and reduced polarity changer switches is proposed. This converter enables flexible output voltage adjustment, determined by two degrees of freedom—namely, the high‐frequency transformer turns ratio and the duty cycle.
Deniz Zargariafshar, Mehran Sabahi, Mohammad Bagher Bannae Sharifian, Ebrahim Babaei   +3 more
wiley   +1 more source

Retificador PWM trifásico de 26KW, três níveis unidirecional, fator de potência unitário e alto rendimento para aplicação em centrais de telecomunicação [PDF]

, 2002
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia Elétrica.Este trabalho apresenta o estudo de um retificador para aplicação em centrais de telecomunicações.
Chehab Neto, Anis Cézar
core