Bridgeless power factor correction circuit and control method utilizing control module to control current flow in power module
US9570973B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 4, 2013 |
| Grant date | Feb 14, 2017 |
| Priority date | — |
| Expiry date | Nov 20, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P80/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A bridgeless power factor correction (PFC) circuit, which includes an alternating current power supply module, a power module, and a control module; the power module includes one or more interleaved PFC circuits, each interleaved PFC circuit includes one inductor, one pair of first switching components, and at least one capacitor, a first end of the inductor is connected to the alternating current power supply module, and a second end of the inductor is connected to one end of each capacitor through one of the first switching components and is also connected to the other end of each capacitor through the other one of the first switching components; and the control module samples a current of each first switching component in the power module, and turns off a first switching component through which a negative current flows.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.