Power supply circuit for motherboard

Details Power supply circuit for motherboard Power supply circuit for motherboard

2011-08-30

2011-08-30

Wallis, Michael Rutland (Department: 2836)

Electrical transmission or interconnection systems

Plural load circuit systems

Circuit arrangements or layouts

C323S370000

Reexamination Certificate

active

08008803

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.

REFERENCES:
patent: 7746044 (2010-06-01), Chen et al.

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