JPS55146521A - Constant-current circuit - Google Patents

Constant-current circuit

Info

Publication number
JPS55146521A
JPS55146521A JP5392379A JP5392379A JPS55146521A JP S55146521 A JPS55146521 A JP S55146521A JP 5392379 A JP5392379 A JP 5392379A JP 5392379 A JP5392379 A JP 5392379A JP S55146521 A JPS55146521 A JP S55146521A
Authority
JP
Japan
Prior art keywords
emitter
transistor
constant
base
resistor
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
JP5392379A
Other languages
Japanese (ja)
Inventor
Hisao Otawa
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP5392379A priority Critical patent/JPS55146521A/en
Publication of JPS55146521A publication Critical patent/JPS55146521A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To improve a temperature characteristic of a constant-current circuit, by connecting base and emitter of another transistor in parallel between base and emitter of a transistor which obtains a constant-current output.
CONSTITUTION: The cathode side of diodes 1, 2 which are connected in series is grounded, the anode is connected each base of transistors 5, 7, a collector of the transistor 5 is connected to the power supply Vcc, and an emitter is grounded through a resistor 6. Moreover, as for the transistor 7, its emitter is connected to the emitter of the transistor 5 through a resistor 8. The transistor 7 which has inserted the resistor 8 into the emitter is connected in parallel between base and emitter of the transistor 5 which obtains a constant-current output, and by obtaining the constant-current output from its collector, a temperature characteristic of its current is improved.
COPYRIGHT: (C)1980,JPO&Japio
JP5392379A 1979-04-27 1979-04-27 Constant-current circuit Pending JPS55146521A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5392379A JPS55146521A (en) 1979-04-27 1979-04-27 Constant-current circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5392379A JPS55146521A (en) 1979-04-27 1979-04-27 Constant-current circuit

Publications (1)

Publication Number Publication Date
JPS55146521A true JPS55146521A (en) 1980-11-14

Family

ID=12956235

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5392379A Pending JPS55146521A (en) 1979-04-27 1979-04-27 Constant-current circuit

Country Status (1)

Country Link
JP (1) JPS55146521A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58215930A (en) * 1982-06-04 1983-12-15 エナジーサポート株式会社 Phase leading condenser automatic controller

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58215930A (en) * 1982-06-04 1983-12-15 エナジーサポート株式会社 Phase leading condenser automatic controller

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