Direct current voltage supply apparatus
US8680719B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 21, 2010 |
| Grant date | Mar 25, 2014 |
| Priority date | — |
| Expiry date | Aug 2, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F1/30
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A DC voltage supply apparatus including a voltage detection unit, an enable signal processing unit, a latch unit, a control unit and a voltage transforming unit is provided. The voltage detection unit receives and detects a DC input voltage to generate an input voltage state signal. The enable signal processing unit receives the input voltage state signal and an enable signal, and determines a state of the enable signal according to the input voltage state signal. When the enable signal is ineffective, the latch unit latches the enable signal to keep an ineffective state. The control unit receives the enable signal, and generates a control signal. When the control signal is effective, the voltage transforming unit receives the DC input voltage and transforms the DC input voltage into a DC output voltage. When the control signal is ineffective, the voltage transforming unit stops receiving the DC input voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.