Computer power supply startup apparatus

Details Computer power supply startup apparatus Computer power supply startup apparatus

2005-11-08

2005-11-08

Perveen, Rehana (Department: 2116)

Electrical computers and digital processing systems: support

Computer power control

By external command

C713S323000, C710S005000, C710S067000

Reexamination Certificate

active

06963984

ABSTRACT:
In order to turn on the main power unit, when it is off, of a computer in a turned-off state from a keyboard, power is supplied from an auxiliary power unit to a USB controller on the keyboard unit side and a power supply startup unit on the computer side, and on the other hand when power supply to a line switching unit is cut off, switching sections are switched over to connect signal lines of the USB controller and input terminals of a differential amplifying unit, respectively. When a specific signal is supplied from the keyboard unit, a power supply startup signal (power ON signal) is supplied from the power supply startup unit to the main power unit to enable the main power unit to be started up.

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patent: 198 23 028 (1998-12-01), None

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