Power supply circuit for motherboard
US8008803B2 · kind B2 · utility
1Cited by
1References
12Claims
0Family size
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Key dates
| Filing date | Aug 8, 2008 |
| Grant date | Aug 30, 2011 |
| Priority date | — |
| Expiry date | May 29, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2330/02
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A power supply circuit includes a first resistor and a first capacitor. One end of the first resistor is connected to a system power. The other end of the first resistor is connected to the anode of the first capacitor. The cathode of the first capacitor is connected to a digital analog converter A (DACA) VDD pin of a north bridge on a motherboard. The system power provides a stable power signal for the DACA VDD of the north bridge via the first resistor and the first capacitor. Thereby the display no longer ripples when the resolution of the display is adjusted to a certain value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.