Charger control circuit and charger control method
US8022672B2 · kind B2 · utility
2Cited by
7References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 11, 2009 |
| Grant date | Sep 20, 2011 |
| Priority date | — |
| Expiry date | Feb 25, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/33507
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention discloses a charger control circuit and a charger control method for controlling a charger having a transformer, the transformer including a primary winding and a secondary winding. The charger control circuit comprises: a power switch coupled to the primary winding; a switch control circuit controlling the operation of the power switch; and a detection circuit which generates a signal according to a voltage at a node between the power switch and the primary winding, and supplies the signal to the switch control circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.