Holdup time circuit and method for bridgeless PFC converter
US10411591B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 6, 2017 |
| Grant date | Sep 10, 2019 |
| Priority date | — |
| Expiry date | Mar 6, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P80/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An embodiment holdup time circuit of a bridgeless power factor correction circuit comprises a charge device connected between an output terminal of a bridgeless power factor correction circuit and an energy storage apparatus, a discharge device connected between the energy storage apparatus and an input of the bridgeless power factor correction circuit, the energy storage apparatus and the bridgeless power factor correction circuit comprising a first boost converter, a second boost converter, a first switch and a second switch, wherein the first switch is connected between the first boost converter and ground and the second switch is connected between the second boost converter and ground.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.