Quasi-resonant valley voltage detecting method and apparatus
US7876085B2 · kind B2 · utility
10Cited by
2References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 10, 2009 |
| Grant date | Jan 25, 2011 |
| Priority date | — |
| Expiry date | Aug 6, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R19/0084
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention discloses a quasi-resonant valley voltage detecting method, comprising the steps of: generating a valley detection signal by detecting a valley of a first quasi-resonant signal; generating a count value by counting the valley detection signal; and determining a level transition instance of a gating signal according to the count value, wherein the level transition instance of the gating signal is pulled back by the valley detection signal to trace the valley of the first quasi-resonant signal. The present invention also provides a quasi-resonant valley voltage detecting apparatus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.