Control circuit and method for switching power converters
US10418907B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 18, 2018 |
| Grant date | Sep 17, 2019 |
| Priority date | — |
| Expiry date | Jun 18, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M1/0032
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An apparatus comprises a first voltage-current conversion unit configured to receive a ramp signal, a second voltage-current conversion unit configured to receive a feedback signal proportional to an output voltage of a power converter, a third voltage-current conversion unit configured to receive an output signal of an error amplifier and a comparator having a first input coupled to an output of the third voltage-current conversion unit and a second input coupled to an output of the first voltage-current conversion unit and an output of the second voltage-current conversion unit through a first summing unit, wherein an output of the comparator determines a turn-on of a high-side switch of the power converter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.