JPS56106424A - Analog switch - Google Patents

Analog switch

Info

Publication number
JPS56106424A
JPS56106424A JP863280A JP863280A JPS56106424A JP S56106424 A JPS56106424 A JP S56106424A JP 863280 A JP863280 A JP 863280A JP 863280 A JP863280 A JP 863280A JP S56106424 A JPS56106424 A JP S56106424A
Authority
JP
Japan
Prior art keywords
capacitor
driving signal
light emitting
emitting diode
series
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
JP863280A
Other languages
Japanese (ja)
Inventor
Seiichi Saito
Yoshio Maehana
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 JP863280A priority Critical patent/JPS56106424A/en
Publication of JPS56106424A publication Critical patent/JPS56106424A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/78—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used using opto-electronic devices, i.e. light-emitting and photoelectric devices electrically- or optically-coupled
    • H03K17/785—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used using opto-electronic devices, i.e. light-emitting and photoelectric devices electrically- or optically-coupled controlling field-effect transistor switches

Landscapes

  • Electronic Switches (AREA)

Abstract

PURPOSE:To avoid a consecutive on of the switch element to a fault of a driving signal, by connecting a capacitor in series to the driving signal path. CONSTITUTION:The capacitor C and the resistance RC plus the diode D are connected in series and parallel each to the driving signal part of a light emitting diode at the light emission side of a photocoupled field effect transistor PFET. When the driving signal FI is normal, the driving signal is applied to the light emitting diode via the capacitor C to perform a switching action. While in case some fault occurs to the signal FI, the voltage applied to the light emitting diode via the capacitor C decreases as the capacitor C approximates to the completion of charge. Thus the PFET is cut off in a certain time.
JP863280A 1980-01-28 1980-01-28 Analog switch Pending JPS56106424A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP863280A JPS56106424A (en) 1980-01-28 1980-01-28 Analog switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP863280A JPS56106424A (en) 1980-01-28 1980-01-28 Analog switch

Publications (1)

Publication Number Publication Date
JPS56106424A true JPS56106424A (en) 1981-08-24

Family

ID=11698322

Family Applications (1)

Application Number Title Priority Date Filing Date
JP863280A Pending JPS56106424A (en) 1980-01-28 1980-01-28 Analog switch

Country Status (1)

Country Link
JP (1) JPS56106424A (en)

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