Switched-mode power supply supporting burst-mode operation
US7054169B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 5, 2002 |
| Grant date | May 30, 2006 |
| Priority date | — |
| Expiry date | Jun 5, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B70/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A switched-mode power supply (SMPS) that operates in a burst mode when an electronic device that receives power from the SMPS demands a low level of power as when in a stand-by mode or cut-off mode. The SMPS contains a first power supply unit for receiving a power and rectifying it, and, according to a level of an output for the load, distinguishing between a normal mode and a burst mode to perform switching according to a timing corresponding to the normal mode and the burst mode to supply a first power. The SMPS also contains an output power supply unit for receiving the first power from the first power supply unit according to a winding ratio of a coil to generate a power for driving the load.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.