Clamping circuit, power supply device including the same and driving method of power supply device
US9680455B2 · kind B2 · utility
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2References
12Claims
0Family size
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Inventors
Key dates
| Filing date | Dec 2, 2014 |
| Grant date | Jun 13, 2017 |
| Priority date | — |
| Expiry date | Jan 7, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B70/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A power supply includes a power switch and a switch control circuit controlling a switching operation of the power switch using a comparison voltage generated according to an output, determining a clamping voltage by sensing an input voltage during a start-up period, and clamping the comparison voltage to the clamping voltage during the start-up period.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.