Power supply apparatus and image forming apparatus
US10547242B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 25, 2018 |
| Grant date | Jan 28, 2020 |
| Priority date | — |
| Expiry date | Sep 25, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B70/10
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The power supply apparatus includes a transformer, a switching unit provided on a primary side of the transformer and configured to perform switching operation for converting an input voltage resulting from rectification and smoothing of an AC voltage and outputting an output voltage from a secondary side of the transformer; a first detection unit configured to detect the output voltage, a feedback unit configured to generate a feedback voltage based on the voltage detected by the first detection unit; a control unit configured to control the switching operation of the switching unit based on the feedback voltage generated by the feedback unit; and a second detection unit configured to detect the AC voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.