Switching power supply
US10924003B2 · kind B2 · utility
1Cited by
1References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 11, 2019 |
| Grant date | Feb 16, 2021 |
| Priority date | — |
| Expiry date | Feb 11, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M1/36
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A controller IC has, for example, a current detection terminal for detecting a coil current passing in a switching power supply and an on-timing setter configured to check for a ground short circuit at the current detection terminal when an output transistor turns off to generate an on-timing setting signal so as to turn on the output transistor, during normal operation, at the time point that the coil current has decreased to a zero value or a value close thereto and, during a ground short circuit, after the lapse of a predetermined minimum off-period.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.