Electricity: power supply or regulation systems – Output level responsive – Using a three or more terminal semiconductive device as the...
Reexamination Certificate
2006-02-21
2006-02-21
Vu, Bao Q. (Department: 2838)
Electricity: power supply or regulation systems
Output level responsive
Using a three or more terminal semiconductive device as the...
C323S282000, C323S274000
Reexamination Certificate
active
07002329
ABSTRACT:
A voltage regulator, which generates and outputs a given voltage based on a preset reference voltage, includes: a detection circuit part detecting the output voltage and generating and outputting a voltage based on the detected voltage; first and second operational amplifiers each comparing the output voltage of said detection circuit part and the preset reference voltage and outputting a voltage representing a comparison result, the first operational amplifier being controlled based on control signals supplied externally and consuming a larger amount of electric current than the second operational amplifier; and an output circuit part comprising an output transistor outputting an electric current based on the output voltages of the first and second operational amplifiers.
REFERENCES:
patent: 6150798 (2000-11-01), Ferry et al.
patent: 6150804 (2000-11-01), Taghizadeh-Kaschani
patent: 6534960 (2003-03-01), Wells et al.
patent: 6577109 (2003-06-01), Dancy et al.
patent: 6580258 (2003-06-01), Wilcox et al.
patent: 6674274 (2004-01-01), Hobrecht et al.
patent: 02-039607 (1990-02-01), None
patent: 06-295211 (1994-10-01), None
patent: 06-325568 (1994-11-01), None
patent: 07-037381 (1995-02-01), None
patent: 07-193447 (1995-07-01), None
patent: 10-111723 (1998-04-01), None
patent: 2001-222331 (2001-08-01), None
Agari Hideki
Yoshii Kohji
Dickerstein Shapiro Morin & Oshinsky LLP
Ricoh & Company, Ltd.
Vu Bao Q.
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