Power converter with snubber
US7579814B2 · kind B2 · utility
13Cited by
11References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 12, 2007 |
| Grant date | Aug 25, 2009 |
| Priority date | — |
| Expiry date | Jan 12, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/155
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A buck or boost converter, which includes a first inductor, a controlled switch, a main diode, and an output capacitor, also includes a snubber circuit to reduce losses. The snubber circuit includes a second inductor in a path in series with the switch and main diode of the converter, a series-connected resistor and diode connected directly in parallel with the second inductor, and a capacitance in parallel with the main diode and which can be constituted partly or entirely by parasitic capacitance of the main diode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.