Switching power supply
US8977157B2 · kind B2 · utility
2Cited by
0References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 17, 2012 |
| Grant date | Mar 10, 2015 |
| Priority date | — |
| Expiry date | Jan 11, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M1/0006
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A switching power supply includes a transformer, a switching unit configured to switch a voltage input to the primary side of the transformer, a control unit configured to control the operation of the switching unit, and a detection unit configured to detect as a voltage a current flowing through the primary side of the transformer and supply the voltage to the control unit, wherein the detection unit controls the voltage to be supplied to the control unit based on the operating state of the switching unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.