Abstract
In this paper, an interleaved flyback converter with a lossless snubber is presented. By freewheeling the energy stored in a snubber, the overall efficiency is improved. In addition, the proposed converter has small output current ripple due to its interleaving structure. Since the proposed converter operates in discontinuous-conduction mode (DCM), the output diodes turned off under zero-current-switching (ZCS) condition and their reverse-recovery problems are alleviated. In order to reduce the current ripple, interleaving operation scheme is adopted. The operational principle and a steady-state analysis of the proposed converter are provided in detail. In order to verify the theoretical analysis, experimental results based on a 90W prototype at a constant switching frequency of 100 kHz are presented.
| Original language | English |
|---|---|
| Pages (from-to) | 882-888 |
| Number of pages | 7 |
| Journal | International Review of Electrical Engineering |
| Volume | 9 |
| Issue number | 5 |
| DOIs | |
| State | Published - 1 Oct 2014 |
Keywords
- DC/DC converter
- Flyback converter
- Interleaved converter
- Lossless snubber