Open AccessZero‐voltage‐transition bridgeless power factor correction rectifier with soft‐switched auxiliary circuit
Author(s) -
Hua ChihChiang,
Fang YiHsiung,
Huang ChinHsiung
Publication year - 2016
Publication title -
iet power electronics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.637
H-Index - 77
eISSN - 1755-4543
pISSN - 1755-4535
DOI - 10.1049/iet-pel.2014.0645
Subject(s) - power factor , rectifier (neural networks) , transformer , precision rectifier , topology (electrical circuits) , voltage , peak inverse voltage , electronic engineering , power (physics) , computer science , electrical engineering , engineering , physics , voltage optimisation , stochastic neural network , quantum mechanics , machine learning , recurrent neural network , artificial neural network
This study presents a zero‐voltage‐transition (ZVT) bridgeless power factor correction (PFC) rectifier, which uses an auxiliary circuit with a transformer to achieve soft‐switching for the main power switches. With the auxiliary circuit, the main switches can be ZVT turned‐on without any additional voltage or current stresses. In addition, the auxiliary switch is turned‐off with zero‐current switching. Therefore, the switching loss of all power switches is reduced, and the overall rectifier efficiency is improved. The circuit topology, operation analysis and the components selection of the proposed rectifier are described in detail. Finally, a laboratory prototype of 700 W is implemented and tested to verify the performance of the proposed PFC rectifier.