JPS5473256A - Constant-current circuit - Google Patents

Constant-current circuit

Info

Publication number
JPS5473256A
JPS5473256A JP14000877A JP14000877A JPS5473256A JP S5473256 A JPS5473256 A JP S5473256A JP 14000877 A JP14000877 A JP 14000877A JP 14000877 A JP14000877 A JP 14000877A JP S5473256 A JPS5473256 A JP S5473256A
Authority
JP
Japan
Prior art keywords
resistance
constant
zenor
circuit
dispersion
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
JP14000877A
Other languages
Japanese (ja)
Inventor
Yasuo Kominami
Kazuo Hoya
Masanori Ienaka
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP14000877A priority Critical patent/JPS5473256A/en
Publication of JPS5473256A publication Critical patent/JPS5473256A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To apply this circuit to a monolithic IC, by offsetting the dispersion of voltage and the dispersion of resistance values by utilizing a Zener diode with breakdown voltage proportional to the dispersion of resistance, in a constant-current circuit.
CONSTITUTION: A series circuit of a 2nd Zenor diode Dz2 and a resistance R11 is mounted to the output of a constant-voltage circuit arranged by a series circuit of a 1st Zenor diode DZ1 and a load resistance R10 -that is, in parallel with the Zenor diode DZ1. To change current flowing through the resistance R11 into constant-current, the concn. of impurities at the high resistivity side ranges over an unsaturated range of the characteristic of the concn. of impurities to Zenor breakdown voltage in the 1st Zenor diode DZ1, and it ranges over a saturated range in the DZ2 while a semiconductor range simultaneously shaped with a semiconductor range at the high resistivity side of the Dz1 is used as the resistance R11.
COPYRIGHT: (C)1979,JPO&Japio
JP14000877A 1977-11-24 1977-11-24 Constant-current circuit Pending JPS5473256A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14000877A JPS5473256A (en) 1977-11-24 1977-11-24 Constant-current circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14000877A JPS5473256A (en) 1977-11-24 1977-11-24 Constant-current circuit

Publications (1)

Publication Number Publication Date
JPS5473256A true JPS5473256A (en) 1979-06-12

Family

ID=15258780

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14000877A Pending JPS5473256A (en) 1977-11-24 1977-11-24 Constant-current circuit

Country Status (1)

Country Link
JP (1) JPS5473256A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20140039296A (en) * 2011-07-04 2014-04-01 애큐릭 엘티디 Current regulator

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20140039296A (en) * 2011-07-04 2014-04-01 애큐릭 엘티디 Current regulator
JP2014525122A (en) * 2011-07-04 2014-09-25 アキュリック リミテッド Current regulator
US9372494B2 (en) 2011-07-04 2016-06-21 Accuric Ltd. Current regulator

Similar Documents

Publication Publication Date Title
JPS5473256A (en) Constant-current circuit
JPS53149613A (en) Protective device of over voltage in semiconductor device
JPS55143079A (en) Luminous source device with light emitting element
JPS53142618A (en) Current-voltage converter
JPS5687932A (en) Switching circuit
JPS5663623A (en) Constant voltage circuit
JPS558167A (en) Voltage setting circuit
JPS5780826A (en) Waveform shaping circuit
JPS5276661A (en) Power source device
JPS54592A (en) Iil device
JPS5357941A (en) Multiplier using hall element
JPS53135680A (en) Voltage supervisory circuit
JPS53115158A (en) Multiplying equipment using hall device
JPS5590132A (en) Pulse modulator
JPS5558467A (en) Inductive load measuring method
JPS5391359A (en) Lightning arrester
JPS5414683A (en) Measuring circuit for turn-off time
JPS5438541A (en) Protective device for current transformer
JPS5598873A (en) Temperature compensated type constant-voltage diode
JPS5473547A (en) Integrating a/d conversion current circuit
JPS6444617A (en) Protecting circuit
JPS5271657A (en) Electric circuit
JPS5482150A (en) Transistor protecting circuit
JPS5580127A (en) Constant-voltage circuit
JPS54150959A (en) Thyristor forced ignition circuit