Power supply apparatus and image forming apparatus
US10630161B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 8, 2018 |
| Grant date | Apr 21, 2020 |
| Priority date | — |
| Expiry date | Aug 8, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B70/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The power supply apparatus includes a current detection unit configured to detect a current that flows through a first switching element of a transformer, and a control unit controls a turn-on time of the first switching element based on a feedback voltage from a secondary side of the transformer, controls a turn-on time of a second switching element based on a detection result of the current detection unit, and performs switching between a continuous control and an intermittent control based on the feedback voltage, the continuous control being a control to perform an operation of continuing a first period, the intermittent control being a control to perform an operation of alternately repeating the first period and a second period.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.