Power factor correction control circuit
US6259614A · kind A · utility
128Cited by
8References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 10, 2000 |
| Grant date | Jul 10, 2001 |
| Priority date | — |
| Expiry date | Jul 10, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P80/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A power factor control circuit for an AC to DC power converter includes an inductor receiving AC rectified power. The charging time of the inductor is controlled by a switching circuit based on a comparison between a DC bus voltage and a fixed reference voltage. The circuit operates without an AC rectified line sensing network, and without a current-sensing resistor connected to the source of the MOSFET switch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.