Power supply apparatus and image forming apparatus controlling switching elements based on detection of a malfunction
US10432084B2 · kind B2 · utility
4Cited by
3References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 9, 2018 |
| Grant date | Oct 1, 2019 |
| Priority date | — |
| Expiry date | Jul 9, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B70/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The switching power supply apparatus including a transformer includes a detection unit configured to detect that the power supply apparatus malfunctions and a first holding unit configured to turn off a first switching element and holds the first switching element at turn-off condition, and when the detection unit detects that malfunction occurs, the first holding unit releases the first switching element from the turn-off condition at a timing when the control unit turns on the second switching element by a second control signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.