Active ripple reduction switched mode power supplies
US7233130B1 · kind B1 · utility
130Cited by
11References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 5, 2005 |
| Grant date | Jun 19, 2007 |
| Priority date | — |
| Expiry date | Aug 5, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M1/143
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A system and method are provided for actively reducing ripple in a supply voltage provided by a switched mode power supply. In general, active ripple reduction circuitry operates to sense the ripple in the supply voltage to provide a signal indicative of the ripple. The signal indicative of the ripple is inverted and provided to the output of the switched mode power supply to substantially reduce or eliminate the ripple in the supply voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.