Master-slave interleaved BCM PFC controller and control method thereof
US9130460B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 18, 2014 |
| Grant date | Sep 8, 2015 |
| Priority date | — |
| Expiry date | Mar 18, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P80/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention relates to a master-slave interleaved BCM PFC controller for controlling a PFC circuit with master and slave channels. In one embodiment, the PFC controller can include: a master channel controller that generates a master channel control signal and an inverted master channel control signal; a first phase shifter that provides a first phase shift for the master channel control signal, and generates a delayed opening signal therefrom; a second phase shifter that provides a second phase shift for the inverted master channel control signal, and generates a delayed shutdown signal therefrom; a slave channel controller that receives the delayed opening signal, the delayed shutdown signal, and a slave channel inductor current zero-crossing signal, and generates a slave channel control signal therefrom.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.