Control circuit and control method of flyback converter
US10972012B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 31, 2018 |
| Grant date | Apr 6, 2021 |
| Priority date | — |
| Expiry date | Aug 31, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M1/0009
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Embodiments of the present application provide a control circuit and a control method of a flyback converter, the control circuit comprises: a first sampling module, a second sampling module, and a control module; the first sampling module is coupled to the control module and the flyback converter, and outputs a first voltage signal to the control module; the second sampling module is coupled to the control module and the flyback converter, and outputs a second voltage signal to the control module; where the first voltage signal reflects an input voltage of the flyback converter, the second voltage signal reflects an output voltage of the flyback converter; the control module outputs a control signal according to the first voltage signal and the second voltage signal, and the control signal reflects a turn-on time of the switch in the flyback converter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.