Power factor correction circuit
US5734562A · kind A · utility
41Cited by
2References
7Claims
0Family size
Inventor
Key dates
| Filing date | Jun 20, 1994 |
| Grant date | Mar 31, 1998 |
| Priority date | — |
| Expiry date | Jun 20, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P80/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A power-factor-corrected switching power supply includes a power-factor-corrector cell followed by a current-fed dc/dc converter cell. Both cells operate in discontinuous current mode. A duty cycle modulator has its input coupled to the output of the current-fed dc/dc converter cell and its output coupled to the switch control inputs of both the PFC cell and the current-fed dc/dc converter cell so that both cells receive the same control signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.