Control circuit and method for controlling a resonant converter and power inverter comprising the resonant converter and the control circuit
US10374520B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 16, 2016 |
| Grant date | Aug 6, 2019 |
| Priority date | — |
| Expiry date | Dec 16, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P80/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention proposes a control circuit and a method of controlling a resonant converter comprising a full-bridge configuration in the following manner: during each half period of a plurality of periods of a resonant current of the resonant converter, starting from an initial state (500) in which a diagonal pair are conductive, turning off (510) a first switch member of the diagonal pair on the basis of the voltage control signal; turning on (520), after the turn-off of the first switch member, a switch member in series connection with the first switch member prior to a zero crossing (E5) of the resonant current; turning off (530), after the turn-off of the first switch member, a second switch member of the diagonal pair prior to the zero crossing (ES); and turning on (540), after the turn-off of the second switch member, a switch member in series connection with the second switch member prior to the zero crossing event of the resonant current.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.