Control circuit and method therefor
US10720916B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 15, 2019 |
| Grant date | Jul 21, 2020 |
| Priority date | — |
| Expiry date | Feb 15, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B70/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In one embodiment, a control circuit may be configured to form a switching signal to switch a power transistor at a frequency to regulate an output voltage of the power supply to a target value wherein the control circuit is configured to operate in a normal operating mode and a start-up mode and wherein the control circuit is configured to switch the switching signal at a target frequency in response to operating in the normal operating mode. A first circuit may be configured to control the frequency of the switching signal to increase from a first frequency to a second frequency that is less than the target frequency in response to operating in the start-up mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.