JPS6412705A - Constant current circuit - Google Patents

Constant current circuit

Info

Publication number
JPS6412705A
JPS6412705A JP62169176A JP16917687A JPS6412705A JP S6412705 A JPS6412705 A JP S6412705A JP 62169176 A JP62169176 A JP 62169176A JP 16917687 A JP16917687 A JP 16917687A JP S6412705 A JPS6412705 A JP S6412705A
Authority
JP
Japan
Prior art keywords
transistor
emitter
constant current
base
collector
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.)
Pending
Application number
JP62169176A
Other languages
Japanese (ja)
Inventor
Norio Shoji
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.)
Sony Corp
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Priority to JP62169176A priority Critical patent/JPS6412705A/en
Publication of JPS6412705A publication Critical patent/JPS6412705A/en
Pending legal-status Critical Current

Links

Landscapes

  • Control Of Electrical Variables (AREA)
  • Amplifiers (AREA)

Abstract

PURPOSE:To obtain micro constant current output, by grounding the emitter of a second transistor with a large current in capacity whose base is connected commonly to a first emitter-grounded transistor via a resistor, and connecting a load resistor between the collector and the base of the second transistor. CONSTITUTION:The load resistor 40 is connected between the emitter of a transistor 24 and the collector of a multiemitter transistor 25. Also, the commonly connected base of a transistor 23 and the transistor 25 is connected to the emitter of the transistor 24, and also, the collector of the transistor 25 is connected to the base of a transistor 31. In such a way, it is possible to set the resistance values of the resistors 26 and 40 at comparatively low values, and to obtain a constant current circuit suitable for the making the circuit into an integrated circuit.
JP62169176A 1987-07-07 1987-07-07 Constant current circuit Pending JPS6412705A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62169176A JPS6412705A (en) 1987-07-07 1987-07-07 Constant current circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62169176A JPS6412705A (en) 1987-07-07 1987-07-07 Constant current circuit

Publications (1)

Publication Number Publication Date
JPS6412705A true JPS6412705A (en) 1989-01-17

Family

ID=15881654

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62169176A Pending JPS6412705A (en) 1987-07-07 1987-07-07 Constant current circuit

Country Status (1)

Country Link
JP (1) JPS6412705A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08321732A (en) * 1995-05-26 1996-12-03 Nec Corp Current mirror circuit and reference current circuit

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5855455U (en) * 1981-10-12 1983-04-15 東明興業株式会社 Pipe house covering film fittings

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5855455U (en) * 1981-10-12 1983-04-15 東明興業株式会社 Pipe house covering film fittings

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08321732A (en) * 1995-05-26 1996-12-03 Nec Corp Current mirror circuit and reference current circuit

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