Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Shinichi Akita0
Date of Patent
June 29, 2010
Patent Application Number
11667396
Date Filed
November 15, 2004
Patent Primary Examiner
Patent abstract
A stabilized DC power supply circuit comprises an error amplifier circuit, an output amplifier circuit, an output voltage division circuit, and a reference voltage circuit. A bias current boost circuit capable of stabilized operation is added to the DC power supply circuit. Since the feedback loop of the bias current boost circuit is provided with a hysteresis function or an artificial hysteresis function by a large delay element, it is possible to adaptively control bias current without sacrifice of stability and realize a stabilized DC power supply circuit exhibiting high response and high stability with low current consumption.
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