Results 111 to 120 of about 951 (213)

Interleaved Modified SEPIC Converters with Soft Switching and High Power Factor for LED Lighting Appliance

Applied Sciences
A novel ac/dc LED driver with power factor correction and soft-switching functions is proposed. The circuit topology mainly consists of two modified single-ended primary inductance converters (SEPIC) with interleaved operation.
Hung-Liang Cheng, Chun-An Cheng, Chien-Hsuan Chang, En-Chih Chang, Lain-Chyr Hwang, Yi-Chan Hung   +5 more
doaj   +1 more source

A Novel Quadratic High Step-Up Converter Featuring Low Ripple Input Current and Lossless Snubber

Majlesi Journal of Electrical Engineering
This paper introduces a high step-up DC–DC converter that combines a quadratic boost architecture with a flyback stage and incorporates a novel lossless snubber network to enhance efficiency and voltage stress performance.
Fatemeh Omrani, Majid Delshad, Bahador Fani   +2 more
doaj   +1 more source

A Ringing Effect Mitigation Approach with Snubber Capacitors in a Dual Active Bridge Converter

This work develops a design methodology for the snubber circuit of a dual-active bridge (DAB) converter affected by the ringing effect. In particular, the ringing is generated by the input and output planar transformer stray capacitances that interact ...
Emanuele Fedele, Nicola Campagna, Alfonso Damiano, Giuseppe Bossi   +3 more
core   +2 more sources

Optimization of Snubber Circuit Parameters for AC–AC Chopper Converter

The AC-AC chopper converter, as a direct power conversion device without DC intermediate stages, has garnered significant attention due to its advantages of high efficiency and fast dynamic response.
Liyang Wei, Jinlong He, Gang Li, Zhenyu Shi, Chunwei Song   +4 more
core   +1 more source

Research on voltage spike suppression for rectifier-side diodes in train-borne chargers

机车电传动
On-board chargers are essential equipment used to charge batteries and regulate power supply from DC busbars on railway vehicles. Due to parasitic capacitance inherent in diodes on the rectifier side of these chargers, this capacitance, together with the
RAO Peinan, GONG Chengxiang, WU Liangui, ZHOU Shuai, LIU Chenghong, YANG Zeling   +5 more
doaj  

Novel passive lossless turn-on snubber for voltage source inverters

, 1997
A novel passive lossless turn-on snubber with a soft-clamped turn-off snubber circuit for voltage source inverters is proposed. The energy trapped in the snubber is recovered into the dc supply and load without any active devices, associated control ...
Qian, Zhao Ming, He, Xiangning, Finney, Stephen J., Williams, Barry W.   +3 more
core  

Sistema regenerativo de energia com alto rendimento e fator de potência unitário [PDF]

, 2000
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico.Este trabalho se concentrou na andlise, simulagdo e experimentagdo de um inversor em ponte completa para realizar o teste de burn-in de reatores eletr6nicos utilizando-se
Guedes, Paulo André da Matta
core  

IPT-Based Snubber Circuit with Virtual Compensation for Voltage Suppression Across WBG Switches Used in Power Converters

Wide Band Gap (WBG) switches enable power electronic converters to achieve higher switching frequencies, improving efficiency and compactness, but parasitic capacitance and inductance in circuits can cause damaging voltage and current oscillations ...
Babaki, Amir; id_orcid, Ebel, Thomas; id_orcid   +1 more
core   +1 more source

Active Snubber Circuit for High Power Inverter Leg

, 2009
— High power converters in the conventional 6 pulse configuration with 6 switching elements IGBTs (Insulated Gate Bipolar Transistor) are pushed to the limit of power. Especially the switching loss is high.
Rasmussen, Tonny Wederberg, Johansen, Morten Holst   +1 more
core  

A Power Conversion Technique with Hierarchical Equalization Charging Topology for LiFePO₄ Batteries. [PDF]

Micromachines (Basel), 2021
Tseng KC, Huang HS, Cheng CA.
europepmc   +1 more source