Power supply control circuit
US7930570B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Aug 8, 2008 |
| Grant date | Apr 19, 2011 |
| Priority date | — |
| Expiry date | Nov 13, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F1/3246
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An exemplary power supply control circuit includes a first electric switch, a second electric switch, a third electric switch, a power supply, and an output terminal. The first electric switch has a first terminal connected to an SIO chip to receive a control signal. When the control signal is at a high level, the first electric switch is turned on, the second electric switch is turned off, the third electric switch is turned off, and the output terminal outputs no power supply. When the control signal is at a low level, the first electric switch is turned off, the second electric switch is turned on, the third electric switch is turned on, and the output terminal outputs the power supply.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.