JPS57103414A - Current source circuit - Google Patents

Current source circuit

Info

Publication number
JPS57103414A
JPS57103414A JP55178546A JP17854680A JPS57103414A JP S57103414 A JPS57103414 A JP S57103414A JP 55178546 A JP55178546 A JP 55178546A JP 17854680 A JP17854680 A JP 17854680A JP S57103414 A JPS57103414 A JP S57103414A
Authority
JP
Japan
Prior art keywords
trs
constitution
base
current
current source
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
JP55178546A
Other languages
Japanese (ja)
Other versions
JPS615286B2 (en
Inventor
Masamichi Manabe
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.)
Pioneer Corp
Original Assignee
Pioneer Corp
Pioneer Electronic 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 Pioneer Corp, Pioneer Electronic Corp filed Critical Pioneer Corp
Priority to JP55178546A priority Critical patent/JPS615286B2/ja
Publication of JPS57103414A publication Critical patent/JPS57103414A/en
Publication of JPS615286B2 publication Critical patent/JPS615286B2/ja
Expired legal-status Critical Current

Links

Abstract

PURPOSE: To stabilize the current output, by connecting transistors in series respectively to plural trnsistors which have bases connected commonly to the base of one transistor.
CONSTITUTION: Transistors (TR) Q2' and Q3' are connected in series to TRs Q2 and Q3 which have bases connected commonly to the base of a TR Q1 of the diode constitution. Collectors of TRs Q2' and Q3', namely, the second collectors of TRs Q2 and Q3 are set to a low potential. By this constitution, even if an impedance Z1 becomes very large, the emitter current is less changed because the emitter current of the TR Q2 is flowed to the TR Q2', and a voltage VBE between the base and the emitter is not changed; and consequently, the output current of the TR Q3 is held constant.
COPYRIGHT: (C)1982,JPO&Japio
JP55178546A 1980-12-17 1980-12-17 Expired JPS615286B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55178546A JPS615286B2 (en) 1980-12-17 1980-12-17

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55178546A JPS615286B2 (en) 1980-12-17 1980-12-17

Publications (2)

Publication Number Publication Date
JPS57103414A true JPS57103414A (en) 1982-06-28
JPS615286B2 JPS615286B2 (en) 1986-02-17

Family

ID=16050366

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55178546A Expired JPS615286B2 (en) 1980-12-17 1980-12-17

Country Status (1)

Country Link
JP (1) JPS615286B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6032821U (en) * 1983-08-10 1985-03-06

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6032821U (en) * 1983-08-10 1985-03-06
JPH0138979Y2 (en) * 1983-08-10 1989-11-21

Also Published As

Publication number Publication date
JPS615286B2 (en) 1986-02-17

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