Power supply apparatus and image forming apparatus
US9160235B2 · kind B2 · utility
0Cited by
8References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 30, 2013 |
| Grant date | Oct 13, 2015 |
| Priority date | — |
| Expiry date | Aug 9, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/33507
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The power supply apparatus includes the feedback winding of a transformer having a first winding, and a second winding whose number of turns is larger than that of the first winding. A voltage output from the transformer is detected. Based on the detected voltage, connection between a switch element and the first winding or the second winding is switched.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.