Switching frequency control apparatus and control method thereof
US11121626B2 · kind B2 · utility
1Cited by
2References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 23, 2019 |
| Grant date | Sep 14, 2021 |
| Priority date | — |
| Expiry date | Sep 23, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M1/44
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A switch frequency control apparatus comprises a timer configured to receive a ramp and a threshold voltage, and generate a control signal for setting gate drive signals of a power converter, a ramp generator configured to generate the ramp through charging a ramp capacitor using a current source having a current level equal to a bias voltage divided by a resistor, and a threshold generator configured to generate the threshold voltage proportional to the bias voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.