Adaptive off-time control for variable-frequency, soft-switchedflyback converter at light loads |
| |
| Authors: | Panov Y Jovanovic MM |
| |
| Affiliation: | Power Electron. Lab., Delta Products Corp., Research Triangle Park, NC; |
| |
| Abstract: | The soft switching of a flyback converter can be achieved by operating the circuit in the critical conduction mode. However, the critical-mode operation at light loads cannot be maintained due to a very high switching frequency and the loss of the output voltage regulation. A control which regulates the output down to the zero load and maintains soft switching at light loads is proposed. The proposed control scheme was implemented in the 380 V/19 V, 65 W flyback DC/DC converter |
| |
| Keywords: | |
|
|
