Flyback switching power supply with bootstrapped gate drive
US5559683A · kind A · utility
11Cited by
7References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 30, 1994 |
| Grant date | Sep 24, 1996 |
| Priority date | — |
| Expiry date | Sep 30, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/335
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Method and apparatus for providing bootstrapped gate drive voltage in a flyback switching power supply. Switching transients and ringing caused by leakage inductance and capacitance in the flyback transformer are captured and used to provide a boosted gate drive voltage for the flyback switch, resulting in lower on resistance and lower switching losses.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.