Single stage push pull boost converter with integrated magnetics and input current shaping technique
Journal
IEEE Transactions on Power Electronics
Journal Volume
21
Journal Issue
5
Pages
1193-1203
Date Issued
2006
Date
2005
Author(s)
Chen, Rong-Tai
Abstract
This paper presents a novel single-stage push-pull boost converter with improved integrated magnetics and a better low-ripple input current. Most of the reported single-stage power factor corrected (PFC) rectifiers cascade a boost-type converter with a dc-dc converter. It is found that the push-pull converter, when the duty cycles are greater than 50%, can simplify the front end of the boost-type converter to a novel single-stage converter. Coupled inductor techniques provide a method to reduce the converter size and weight and to achieve a ripple-free current. All the magnetic components including the input filter inductor and the step-down transformer are integrated into a single EI core. The proposed integrated magnetic structure has a simple core structure, a small leakage inductance, and low core losses. The prototype is built to demonstrate the theoretical prediction. © 2006 IEEE.
Subjects
Integrated magnetics; Push-pull boost converter; Ripple-free; Single-stage
SDGs
Other Subjects
Electric filters; Electric inductors; Electric rectifiers; Inductance; Magnetic circuits; Magnetic leakage; Integrated magnetics; Power factor corrected (PFC) rectifiers; Push pull boost converters; Electric converters
Type
journal article
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