Overcurrent protection circuit and overcurrent protection method
US8913363B2 · kind B2 · utility
5Cited by
8References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 27, 2011 |
| Grant date | Dec 16, 2014 |
| Priority date | — |
| Expiry date | Sep 17, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M1/0009
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An overcurrent protection circuit includes: a determiner configured to determine whether or not the switch current exceeds a predetermined threshold, that is, the switch current is an overcurrent state when the switching element is turned ON; an OFF period setting counter configured to increase or decrease a counter output depending on a determination result of the determiner; and a drive signal generator configured to generate a drive signal of the switching element such that a length of an ON timing interval of the switching element corresponds to the counter output of the OFF period setting counter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.