Constant voltage reset circuit for forward converter
US6639814B2 · kind B2 · utility
16Cited by
3References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 3, 2001 |
| Grant date | Oct 28, 2003 |
| Priority date | — |
| Expiry date | Dec 3, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/33538
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A constant voltage reset circuit used in a forward converter for the holdup time requirement or the wide input voltage range is disclosed. In one embodiment, the constant voltage reset circuit comprises a reset capacitor, a parallel-coupled switch, and a diode coupled in series with the reset capacitor which is configured to cooperate therewith to reset an energy from the transformer. The forward converter employing the reset circuit or the method achieves a higher efficiency with a larger turn ratio and without the 50% limitation of maximum duty cycle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.