Apparatus for programmably converting an operating voltage of a

Details Apparatus for programmably converting an operating voltage of a Apparatus for programmably converting an operating voltage of a

1996-10-21

1999-02-02

Auve, Glenn A.

Electronic digital logic circuitry

Multifunctional or programmable

Array

326 80, G06F 126

Patent

active

058677151

ABSTRACT:
An apparatus for programmably converting the operating voltage of a CPU & chipset by means of the firmware programmably setting the operating voltage, instead of by means of adjusting jumpers, is disclosed. The apparatus includes an address decoder unit, a programmable data memory, a DC to DC converter and a feedback resistance switching circuit. In operation, the computer inputs an address signal and a data signal required for changing the operating voltage to the address decoder unit. After being decoded, the data is written into the programmable data memory. Then the programmable data memory outputs a selection signal to change the internal resistance of the feedback resistance switching circuit, thereby to convert the output voltage of the DC to DC converter.

REFERENCES:
patent: 4584517 (1996-07-01), Schwob
patent: 5444298 (1995-08-01), Schutz
patent: 5534771 (1996-07-01), Massie
patent: 5602792 (1997-02-01), Kanaishi
patent: 5691654 (1997-11-01), Green et al.

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