Voltage regulator

The invention provides a voltage regulator capable of suppressing current consumption in a non-regulation state with a simple circuit structure. The voltage regulator (1A) has: an output transistor that receives a control voltage and outputs an output voltage; an error amplification circuit (25) tha...

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Bibliographic Details
Main Authors OGURA YASUHIKO, SUZUKI TERUO, HARUYAMA ATSUSHI
Format Patent
LanguageChinese
English
Published 29.03.2024
Subjects
CONTROLLING
PHYSICS
REGULATING
SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
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Summary:The invention provides a voltage regulator capable of suppressing current consumption in a non-regulation state with a simple circuit structure. The voltage regulator (1A) has: an output transistor that receives a control voltage and outputs an output voltage; an error amplification circuit (25) that outputs an amplified signal obtained by amplifying the difference between a voltage based on the output voltage and a reference voltage; a source-grounded amplifier circuit (20A) to which the amplified signal is inputted and which outputs the control voltage to an output transistor; and a non-regulated state detection circuit (30) that outputs, to the source-grounded amplifier circuit, a detection signal including a signal level corresponding to whether or not the source-grounded amplifier circuit is in a non-regulated state, the source-grounded amplifier circuit having: a current control circuit (26A) that controls the current of the source-grounded amplifier circuit; and a plurality of paths connected in parall
Bibliography:Application Number: CN202311260637