System for supplying operating voltage to CPU

Details System for supplying operating voltage to CPU System for supplying operating voltage to CPU

2005-04-20

2008-03-11

Lee, Thomas (Department: 2115)

Electrical computers and digital processing systems: support

Computer power control

Power conservation

C713S300000, C713S340000

Reexamination Certificate

active

07343503

ABSTRACT:
A system for supplying an operating voltage to a CPU (50) includes a power supply (10) for supplying power to a computer, a PWM controller (30), a feedback circuit (70), and a plurality of electronic elements. The PWM controller converts voltage supplied to the computer to an operating voltage of the CPU. The feedback circuit comprises a plurality of resistors and capacitors, and feeds back a feedback voltage to the PWM controller. The feedback circuit further includes a thermistor. When resistance of the resistors is changed due to surrounding temperature changing, the thermistor equalizes the resistance changing.

REFERENCES:
patent: 5414441 (1995-05-01), Memarzadeh et al.
patent: 5774734 (1998-06-01), Kikinis et al.
patent: 5969512 (1999-10-01), Matsuyama
patent: 7134030 (2006-11-01), Wang
patent: 1407714 (2003-04-01), None
patent: 02130524.2 (2004-02-01), None
patent: 2004-112892 (2004-04-01), None

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