Control circuit and method for switching power converters
US11848609B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 4, 2022 |
| Grant date | Dec 19, 2023 |
| Priority date | — |
| Expiry date | May 19, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M1/0032
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An apparatus includes a first conversion unit configured to convert a ramp voltage signal into a ramp current signal flowing through a first resistor, a second conversion unit configured to convert a feedback voltage signal into a feedback current signal flowing through the first resistor, a third conversion unit configured to convert a control voltage signal generated by an error amplifier into a control current signal flowing through a second resistor, and a comparator having a first input coupled to the first resistor and a second input coupled to the second resistor, wherein an output of the comparator determines a turn-on of a high-side switch of a power converter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.