Power supply having power status indicator with reduced power consumption
US7633273B2 · kind B2 · utility
1Cited by
1References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 14, 2006 |
| Grant date | Dec 15, 2009 |
| Priority date | — |
| Expiry date | Sep 9, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B70/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
What is concerned is a power supply having a power status indicator, in which the power status indicator is powered by a constant voltage source, such as a constant voltage provided by an auxiliary power supply or a reference voltage provided for the internal control circuitry. Or otherwise, the power status indicator is connected in series with a feedback circuit or a protection circuit of the power supply, and the current-limiting resistor thereof is eliminated. In this way, the power consumption of the power supply under the standby mode is reduced, and the energy utilization of the power supply is enhanced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.