Abstract
A soft-switched high step-up converter with ripple-free input current ripple is presented. In the presented converter, the coupled-inductor is utilized to cancel out the input current ripple. The DC-DC converter cell with N-stage voltage doubler in the proposed converter provides soft-switching characteristic of main switches and alleviates the reverse-recovery problems of the output diodes. The proposed converter achieves high efficiency because of reduction of the switch voltage stress, mitigation of the output diodes' reverse recovery problem, and soft-switching characteristic of main switches. Detailed analysis and design of the proposed converter are carried out. A prototype of the proposed converter is developed, and its experimental results are presented for validation.
| Original language | English |
|---|---|
| Pages (from-to) | 3717-3724 |
| Number of pages | 8 |
| Journal | International Review of Electrical Engineering |
| Volume | 7 |
| Issue number | 2 |
| State | Published - 2012 |
Keywords
- High voltage gain
- Soft-switching
- Step-up converter
- Zero-voltage-switching