Abstract
An isolated zero-voltage-switching (ZVS) single-ended primary inductor converter (SEPIC) is presented in this paper. An active clamp circuit is added to the conventional isolated SEPIC converter to provide ZVS operation. A coupled inductor and an auxiliary capacitor are utilized to obtain the ripple-free input current. Moreover, the reverse-recovery problem of the output diode is alleviated due to the leakage inductance of the transformer. The major advantages of this converter besides step up/down capability and an electrical isolation are the ripple-free input current and soft-switching commutations of the power semiconductor devices. The operation principle and steady-state analysis of the proposed converter are provided in detail. A prototype of the proposed converter is developed, and its experimental results are presented for validation.
| Original language | English |
|---|---|
| Pages (from-to) | 2894-2901 |
| Number of pages | 8 |
| Journal | International Review of Electrical Engineering |
| Volume | 6 |
| Issue number | 7 |
| State | Published - 2011 |
Keywords
- Coupled Inductor
- Ripple-free Input Current
- SEPIC Converter
- Zero-Voltage-Switching