Power reduction of a power supply unit at light loading or no loading
US8582322B2 · kind B2 · utility
1Cited by
4References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 14, 2012 |
| Grant date | Nov 12, 2013 |
| Priority date | — |
| Expiry date | Mar 15, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B70/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A power supply unit includes a switching power converter responsive to a control signal to switch a power switch thereof to provide an output voltage and an output current for a load. To reduce light-load or no-load power consumption of the power supply unit, the power supply unit repeats a process of stopping switching the power switch and recovering switching the power switch for a period of time once the output voltage decreases to be lower than a reference voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.