JPS5571057A - Current limiting circuit - Google Patents

Current limiting circuit

Info

Publication number
JPS5571057A
JPS5571057A JP14502678A JP14502678A JPS5571057A JP S5571057 A JPS5571057 A JP S5571057A JP 14502678 A JP14502678 A JP 14502678A JP 14502678 A JP14502678 A JP 14502678A JP S5571057 A JPS5571057 A JP S5571057A
Authority
JP
Japan
Prior art keywords
base
transistor
emitter
limiting circuit
current limiting
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
JP14502678A
Other languages
Japanese (ja)
Inventor
Susumu Oota
Masanori Ono
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.)
Yokogawa Electric Corp
Original Assignee
Yokogawa Hokushin Electric Corp
Yokogawa Electric Works 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 Yokogawa Hokushin Electric Corp, Yokogawa Electric Works Ltd filed Critical Yokogawa Hokushin Electric Corp
Priority to JP14502678A priority Critical patent/JPS5571057A/en
Publication of JPS5571057A publication Critical patent/JPS5571057A/en
Pending legal-status Critical Current

Links

Landscapes

  • Bipolar Transistors (AREA)
  • Semiconductor Integrated Circuits (AREA)

Abstract

PURPOSE: To integrate a detecting resistance by using a shunt transistor formed with characteristics matched on the same substrate through having a base and an emitter connected in common in a current limiting circuit using base-emitter voltage of the transistor as a reference voltage.
CONSTITUTION: A base and an emitter of output transistor Q1 and shunt transistor Q3 are connected in common, and an input current Ii is supplied between the base and the emitter from a signal source S. The collector of the shunt transistor Q3 is connected to a power source Vs by way of a detecting resistance Rs and also connected to the base of a control transistor Q2. The collector current of the control transistor Q2 controls said input current Ii for dimension.
COPYRIGHT: (C)1980,JPO&Japio
JP14502678A 1978-11-24 1978-11-24 Current limiting circuit Pending JPS5571057A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14502678A JPS5571057A (en) 1978-11-24 1978-11-24 Current limiting circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14502678A JPS5571057A (en) 1978-11-24 1978-11-24 Current limiting circuit

Publications (1)

Publication Number Publication Date
JPS5571057A true JPS5571057A (en) 1980-05-28

Family

ID=15375697

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14502678A Pending JPS5571057A (en) 1978-11-24 1978-11-24 Current limiting circuit

Country Status (1)

Country Link
JP (1) JPS5571057A (en)

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