JPS56102124A - Electronic switch circuit - Google Patents

Electronic switch circuit

Info

Publication number
JPS56102124A
JPS56102124A JP500680A JP500680A JPS56102124A JP S56102124 A JPS56102124 A JP S56102124A JP 500680 A JP500680 A JP 500680A JP 500680 A JP500680 A JP 500680A JP S56102124 A JPS56102124 A JP S56102124A
Authority
JP
Japan
Prior art keywords
current
input
trq3
collector
output
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
JP500680A
Other languages
Japanese (ja)
Inventor
Tomoaki Uchida
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.)
Victor Company of Japan Ltd
Original Assignee
Victor Company of Japan 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 Victor Company of Japan Ltd filed Critical Victor Company of Japan Ltd
Priority to JP500680A priority Critical patent/JPS56102124A/en
Publication of JPS56102124A publication Critical patent/JPS56102124A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F3/00—Non-retroactive systems for regulating electric variables by using an uncontrolled element, or an uncontrolled combination of elements, such element or such combination having self-regulating properties
    • G05F3/02—Regulating voltage or current
    • G05F3/08—Regulating voltage or current wherein the variable is dc
    • G05F3/10—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics
    • G05F3/16—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics being semiconductor devices
    • G05F3/20—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics being semiconductor devices using diode- transistor combinations
    • G05F3/26—Current mirrors
    • G05F3/265—Current mirrors using bipolar transistors only

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Electronic Switches (AREA)
  • Nonlinear Science (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)

Abstract

PURPOSE:To make it possible to pick up an output current which is equal to the input current irrespective of the voltage level of input signal when input and output terminals are shorted, by setting the control electrode currents of 2 pieces of active elements connected between input and output terminals of the same value. CONSTITUTION:Each emitter of NPN transistor TRQ1 and PNP transistor TRQ2 is connected to input terminal 1 after they are commonly connected to each other, and each collector of the transistors is commonly connected to each other and then connected to output terminal 2. Bases of TRQ3 and Q4 are connected to control terminal 3'. Since characteristics of TRQ3 and Q4 are the same, and collector current I5 of TRQ4, current I6 flowing through diode D5 inserted between power source 5 and TRQ4, collector current I2 of TRQ3, and collector current I1' of TRQ5 become almost the same, the following equation is realized; I5=I6=I1'=I2'. By this, current I1' and I2' will not be changed in accordance with the voltage level of input signal, and then output current I4 which is equal to input current I3 can be picked up.
JP500680A 1980-01-18 1980-01-18 Electronic switch circuit Pending JPS56102124A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP500680A JPS56102124A (en) 1980-01-18 1980-01-18 Electronic switch circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP500680A JPS56102124A (en) 1980-01-18 1980-01-18 Electronic switch circuit

Publications (1)

Publication Number Publication Date
JPS56102124A true JPS56102124A (en) 1981-08-15

Family

ID=11599460

Family Applications (1)

Application Number Title Priority Date Filing Date
JP500680A Pending JPS56102124A (en) 1980-01-18 1980-01-18 Electronic switch circuit

Country Status (1)

Country Link
JP (1) JPS56102124A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61274421A (en) * 1985-05-29 1986-12-04 Hitachi Ltd Analog switch
US4845446A (en) * 1985-04-12 1989-07-04 Ii Morrow, Inc. Dynamically variable attenuator
JP2002532883A (en) * 1998-12-07 2002-10-02 テレフオンアクチーボラゲツト エル エム エリクソン（パブル） Analog switch

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4845446A (en) * 1985-04-12 1989-07-04 Ii Morrow, Inc. Dynamically variable attenuator
JPS61274421A (en) * 1985-05-29 1986-12-04 Hitachi Ltd Analog switch
JP2002532883A (en) * 1998-12-07 2002-10-02 テレフオンアクチーボラゲツト エル エム エリクソン（パブル） Analog switch
JP4838421B2 (en) * 1998-12-07 2011-12-14 インフィネオン テクノロジーズ アーゲー Analog switch

Similar Documents

Publication Publication Date Title
JPS5753112A (en) Sepp power amplifier
FR2301948A1 (en) Transistor circuit with internal overload and shorting protection - consisting of internal emitter series resistor and internal turn-off circuit
JPS56102124A (en) Electronic switch circuit
JPS57104325A (en) Ecl circuit
JPS6439830A (en) A/d converter
JPS579134A (en) Logical circuit
JPS5731213A (en) Electric power amplifier
JPS561769A (en) Constant current circuit
JPS56103539A (en) Output circuit
JPS5765013A (en) Output protection circuit
JPS5642410A (en) Emitter follower circuit
SU1137453A1 (en) Compensating dc voltage stabilizer having protection
GB933667A (en) A transistorized loading circuit
JPS5672524A (en) Comparator circuit
JPS5545259A (en) Transistor output circuit
SU1617424A1 (en) Overcurrent-protected voltage stabilizer
JPS5753152A (en) Inverter circuit
JPS5769932A (en) Current switching type logical circuit
JPS5780813A (en) Amplifier
SU1188864A1 (en) Pulser
JPS6446307A (en) Current mirror circuit
JPS54156458A (en) Capacitor charging circuit
JPS5634227A (en) Switching driving circuit of bipolar transistor
JPS56116130A (en) Voltage stabilizing circuit
JPS57206941A (en) Constant voltage circuit