Power supply circuit for motherboard

Details Power supply circuit for motherboard Power supply circuit for motherboard

2008-05-23

2010-11-23

Berhane, Adolf (Department: 2838)

Electricity: power supply or regulation systems

Output level responsive

Using a three or more terminal semiconductive device as the...

C713S300000

Reexamination Certificate

active

07839127

ABSTRACT:
A power supply circuit for a motherboard includes an input/output (I/O) controller, a power circuit providing a working voltage for the I/O controller, and a first resistor. The I/O controller includes an I/O controller voltage pin and an I/O controller case open detection (COPEN) pin. The power circuit includes an input, a first output, a second output, and a GND pin. The input of the power circuit is connected to a standby power supply; and the first output of the power circuit is connected to the I/O controller voltage pin. The second output of the power circuit is connected to the I/O controller COPEN pin via the first resistor; and the GND pin of the power circuit is grounded.

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