JPS5791008A - Reference voltage circuit - Google Patents

Reference voltage circuit

Info

Publication number
JPS5791008A
JPS5791008A JP55166296A JP16629680A JPS5791008A JP S5791008 A JPS5791008 A JP S5791008A JP 55166296 A JP55166296 A JP 55166296A JP 16629680 A JP16629680 A JP 16629680A JP S5791008 A JPS5791008 A JP S5791008A
Authority
JP
Japan
Prior art keywords
voltage
trq5
reference voltage
constant
resistors
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP55166296A
Other languages
Japanese (ja)
Other versions
JPH0122643B2 (en
Inventor
Toru Takahashi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP55166296A priority Critical patent/JPS5791008A/en
Publication of JPS5791008A publication Critical patent/JPS5791008A/en
Publication of JPH0122643B2 publication Critical patent/JPH0122643B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/34—DC amplifiers in which all stages are DC-coupled
    • H03F3/343—DC amplifiers in which all stages are DC-coupled with semiconductor devices only

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Semiconductor Integrated Circuits (AREA)
  • Control Of Electrical Variables (AREA)
  • Logic Circuits (AREA)
  • Electronic Switches (AREA)
  • Amplifiers (AREA)
  • Bipolar Transistors (AREA)

Abstract

PURPOSE:To stably supply a low output voltage, by dividing a forward voltage Vbe between base and emitter of a transistor (TR) through resistors as a reference voltage of an IC and adding a voltage difference between a TR with different current density and the Vbe. CONSTITUTION:A TRQ5, resistors R4, R5 and constant current source IO constitute a constant voltage circuit raking (e) as a reference voltage. A TRQ6 having emitter area greater by several times than that of the TRQ5 is connected to the output, to obtain a constant voltage across the R6 without temperature dependency. With this constitution, a part of the voltage Veb5 is taken out through the resistance ratio of the R4, R5, and a reference voltage with a comparatively low value can be obtained across the R6 by directly adding the voltage difference itself between the TRQ5, Q6 for the compensation of temperature coefficient. Thus, a stable low output voltage can be obtained at an output voltage Vout only with the forbidden band voltage of the TR5 and the resistance ratio.
JP55166296A 1980-11-26 1980-11-26 Reference voltage circuit Granted JPS5791008A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55166296A JPS5791008A (en) 1980-11-26 1980-11-26 Reference voltage circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55166296A JPS5791008A (en) 1980-11-26 1980-11-26 Reference voltage circuit

Publications (2)

Publication Number Publication Date
JPS5791008A true JPS5791008A (en) 1982-06-07
JPH0122643B2 JPH0122643B2 (en) 1989-04-27

Family

ID=15828706

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55166296A Granted JPS5791008A (en) 1980-11-26 1980-11-26 Reference voltage circuit

Country Status (1)

Country Link
JP (1) JPS5791008A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61222314A (en) * 1984-01-20 1986-10-02 Hitachi Ltd Level discriminating circuit
JPH03179514A (en) * 1989-11-02 1991-08-05 Toshiba Corp Constant voltage circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61222314A (en) * 1984-01-20 1986-10-02 Hitachi Ltd Level discriminating circuit
JPH03179514A (en) * 1989-11-02 1991-08-05 Toshiba Corp Constant voltage circuit

Also Published As

Publication number Publication date
JPH0122643B2 (en) 1989-04-27

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