Electronic system for reducing power supply voltage

Details Electronic system for reducing power supply voltage Electronic system for reducing power supply voltage

2004-02-20

2008-12-16

Ometz, David (Department: 2622)

Television

Camera, system and detail

Solid-state image sensor

Reexamination Certificate

active

07466355

ABSTRACT:
There is provided a method of reducing a power supply voltage which is supplied from a voltage regulator to at least one particular circuit, the voltage regulator being configured to adjust its output voltage by use of an external output voltage setting circuit connected thereto, a switching element being used to connect an output voltage setting terminal of the voltage regulator to a ground via a predetermined resistance. The method includes turning off the switching element so that the output voltage of the voltage regulator is set at a preset power supply voltage for enabling the at least one particular circuit, and turning on the switching element so that the output voltage of the voltage regulator is reduced to a predetermined voltage lower than the preset power supply voltage.

REFERENCES:
patent: 4250413 (1981-02-01), Kawasaki et al.
patent: 4516168 (1985-05-01), Hicks
patent: 4872069 (1989-10-01), Takami et al.
patent: 5061957 (1991-10-01), Nishikawa et al.
patent: 5095226 (1992-03-01), Tani et al.
patent: 5600521 (1997-02-01), Kondo
patent: 6429728 (2002-08-01), Zabinski
patent: 7046293 (2006-05-01), Nagase
patent: 2003/0020821 (2003-01-01), Watanabe et al.
patent: 2003/0025823 (2003-02-01), Watanabe et al.
NJM317 Data Sheet: Adjustable 3-Terminal Positive Voltage Regulator pp. 1-7 which was published in Japan on Jul. 18, 2003.

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