JPS5568729A - Input circuit with input level decision - Google Patents

Input circuit with input level decision

Info

Publication number
JPS5568729A
JPS5568729A JP14250878A JP14250878A JPS5568729A JP S5568729 A JPS5568729 A JP S5568729A JP 14250878 A JP14250878 A JP 14250878A JP 14250878 A JP14250878 A JP 14250878A JP S5568729 A JPS5568729 A JP S5568729A
Authority
JP
Japan
Prior art keywords
input
circuits
input signal
circuit
reverse
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
JP14250878A
Other languages
Japanese (ja)
Inventor
Kazunari Nishitani
Hiroshi Kobayashi
Shinji Suda
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 JP14250878A priority Critical patent/JPS5568729A/en
Publication of JPS5568729A publication Critical patent/JPS5568729A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
    • G01R19/16566—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533
    • G01R19/16576—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533 comparing DC or AC voltage with one threshold
    • G01R19/1658—AC voltage or recurrent signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Manipulation Of Pulses (AREA)

Abstract

PURPOSE:To obtain the output corresponding to the input signl by providing the capacitor between the input sides of the reverse and non-reverse amplifier circuits and the input terminal and then giving the decision to the input signal featuring a small input signal at a certain level. CONSTITUTION:Reverse amplifier circuit 81 and non-reverse amplifier circuit 82 share input terminal 10, and bias circuit 80 decides the DC bias voltage for circuits 81 and 82. Gate group 83 operates with reception of the output of circuits 81 and 82, and capacitor 70 is inserted between the input sides of circuits 81 and 82 and the input terminal. In such constitution, the input signal featuring a small amplitude is decided at a certain level, thus obtaining the output corresponding to the input signal.
JP14250878A 1978-11-17 1978-11-17 Input circuit with input level decision Pending JPS5568729A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14250878A JPS5568729A (en) 1978-11-17 1978-11-17 Input circuit with input level decision

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14250878A JPS5568729A (en) 1978-11-17 1978-11-17 Input circuit with input level decision

Publications (1)

Publication Number Publication Date
JPS5568729A true JPS5568729A (en) 1980-05-23

Family

ID=15316971

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14250878A Pending JPS5568729A (en) 1978-11-17 1978-11-17 Input circuit with input level decision

Country Status (1)

Country Link
JP (1) JPS5568729A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0290066A (en) * 1988-09-27 1990-03-29 Nec Corp Hysteresis circuit
FR2655496A1 (en) * 1989-12-05 1991-06-07 Sgs Thomson Microelectronics THRESHOLD COMPARATOR IMMUNIZED AGAINST NOISE.

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0290066A (en) * 1988-09-27 1990-03-29 Nec Corp Hysteresis circuit
FR2655496A1 (en) * 1989-12-05 1991-06-07 Sgs Thomson Microelectronics THRESHOLD COMPARATOR IMMUNIZED AGAINST NOISE.
US5170076A (en) * 1989-12-05 1992-12-08 Sgs-Thomson Microelectronics S.A. Threshold comparator immunized against noise

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