Results 21 to 30 of about 24,226 (133)

Hardware architecture for lossless image compression based on context-based modeling and arithmetic coding [PDF]

, 2007
In this paper we present a novel hardware architecture for context-based statistical lossless image compression, as part of a dynamically reconfigurable architecture for universal lossless compression.
Vitulli, Raffaele, Canagarajah, CN, Chen, X, Nunez-Yanez, JL   +3 more
core   +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

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

Recent Advances in Hybrid, Plug‐In, Battery, and Fuel Cell EVs: Control Schemes, Modes, Converter Topologies, and Pros and Cons

IET Electrical Systems in Transportation, Volume 2026, Issue 1, 2026.
Direct current (DC)–DC converters are the backbone of electric vehicle (EV) power trains, enabling efficient and bidirectional energy flow between the battery, high‐voltage (HV) DC link, and auxiliary rails under tight isolation, gain, ripple, and electromagnetic interference (EMI) constraints.
Abhilash Sakhare, Suresh Mikkili, Praveen Kumar Bonthagorla, Fabio Crescimbini   +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  

Single-Switch Soft-Switched High Voltage Gain Converter With Low Voltage Stress and Continuous Input Current

IEEE Open Journal of Power Electronics
This paper introduces a soft-switched high step-up converter applicable to photovoltaic systems. In the proposed topology, to further improve the voltage gain and reduce the components voltage stress, coupled inductors and voltage multiplier cell (VMC ...
Mohammad Reza Gholami, Siamak Khalili, Hosein Farzanehfard, Ehsan Adib, Hani Vahedi   +4 more
doaj   +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

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 High Voltage Gain Single‐Switch Converter With Soft‐Switching and EMI Mitigation

International Transactions on Electrical Energy Systems, Volume 2026, Issue 1, 2026.
In this study, a high step‐up DC–DC conversion topology incorporating soft‐switching behavior is introduced. The proposed structure employs a combination of coupled‐inductor boosting and switched‐capacitor enhancement to achieve a substantial increase in voltage gain.
Ali Janghorban, Majid Delshad, Bahador Fani, Sachin Jain   +3 more
wiley   +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