Title:
【発明の名称】電圧検出回路
Document Type and Number:
Japanese Patent JP3001692
Kind Code:
B2
Abstract:
A voltage stabilizing circuit comprising a voltage detecting circuit for detecting a control voltage in response to an output voltage of the voltage stabilizing circuit, and a control circuit for stabilizing, based on the control voltage, the output voltage of the electronic device. To remove the component of a base-emitter voltage from the control voltage, the voltage detecting circuit includes a first series circuit and a second series circuit connected to each other in series. The first series circuit consists of a first resistor and a first transistor connected in series. The second series circuit consists of a second resistor and a second transistor connected in series. The second transistor is connected to function as a diode connection. The first resistor and the second resistor have substantially the same resistances. Thus the control voltage is made to be substantially the same as the output voltage.
Inventors:
Yasuhiro Kimura
Tomio Takayama
Tomio Takayama
Application Number:
JP24740091A
Publication Date:
January 24, 2000
Filing Date:
September 26, 1991
Export Citation:
Assignee:
富士通株式会社
International Classes:
G01R19/32; G05F1/56; (IPC1-7): G01R19/32
Domestic Patent References:
| JP225874U | ||||
| JP1137479U |
Attorney, Agent or Firm:
Fumihiro Hasegawa (2 outside)