Power converter with control circuit and related control method
US8120931B2 · kind B2 · utility
12Cited by
4References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 18, 2008 |
| Grant date | Feb 21, 2012 |
| Priority date | — |
| Expiry date | May 15, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/33507
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A control circuit for use in a power converter has a multi-function terminal, a current comparator circuit, and an under-voltage detection circuit. The current comparator circuit compares current flowing through a power switch of the power converter with a reference value through the multi-function terminal when the power switch is on, and turns the power switch off when the current reaches the reference value. The under-voltage detection circuit determines whether an input voltage of the power converter is less than a predetermined value through the multi-function terminal when the power switch is turned off.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.