Utilizing charge stored in a snubber capacitator in a switching circuit
US6678175B1 · kind B1 · utility
6Cited by
4References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 15, 2002 |
| Grant date | Jan 13, 2004 |
| Priority date | — |
| Expiry date | Aug 15, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B70/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention replaces a snubber resistor with a two diodes and a load. The electric charge stored in the snubber capacitor on each cycle of the switch is then caused by a first diode to flow through the load, rather than to flow through a snubber resistor. A second diode provides a charging path for the snubber capacitor. The load uses the electric power which would be wasted in the snubber resistor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.