JPS5744333A - Contactless relay - Google Patents

Contactless relay

Info

Publication number
JPS5744333A
JPS5744333A JP55120017A JP12001780A JPS5744333A JP S5744333 A JPS5744333 A JP S5744333A JP 55120017 A JP55120017 A JP 55120017A JP 12001780 A JP12001780 A JP 12001780A JP S5744333 A JPS5744333 A JP S5744333A
Authority
JP
Japan
Prior art keywords
voltage
flows
current
ppo5
collector
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
JP55120017A
Other languages
Japanese (ja)
Inventor
Osami Ujigawa
Hitoshi Kondo
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.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita 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 Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP55120017A priority Critical patent/JPS5744333A/en
Publication of JPS5744333A publication Critical patent/JPS5744333A/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
    • H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
    • H03K17/72—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices having more than two PN junctions; having more than three electrodes; having more than one electrode connected to the same conductivity region
    • H03K17/725—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices having more than two PN junctions; having more than three electrodes; having more than one electrode connected to the same conductivity region for ac voltages or currents

Landscapes

  • Thyristor Switches And Gates (AREA)
  • Electronic Switches (AREA)

Abstract

PURPOSE:To prevent malfunction even when a noise rising suddenly is applied to an output side, by connecting a protecting resistance and a capacitor together while connecting an npn transistor (TR) between a photosensitive pulse oscillating element and an SCR. CONSTITUTION:Light from a light emitting diode LED is incident to a photosensitive pulse oscillating element PPO5. In this case, when a voltage Vs applied between its collector and the anode of a Zener diode 7 is lower than a Zener voltage Vz, a current I2 flows between the collector and emitter and when the voltage exceeds the voltage Vz, a photocurrent I1 flows while the current I2 is ceased. Therefore, a full-wave rectified voltage is applied to an SCR4, which is turned on at the voltage Vz to turn on a triac 3. Then, a noise rising suddenly when an AC power source 1 at an output side is turned on flows to the base of a TR8 through a protecting resistance R3 and a capacitor Cb and the TR8 turns on for the by- passing of the breakover current of a PPO5.
JP55120017A 1980-08-30 1980-08-30 Contactless relay Pending JPS5744333A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55120017A JPS5744333A (en) 1980-08-30 1980-08-30 Contactless relay

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55120017A JPS5744333A (en) 1980-08-30 1980-08-30 Contactless relay

Publications (1)

Publication Number Publication Date
JPS5744333A true JPS5744333A (en) 1982-03-12

Family

ID=14775838

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55120017A Pending JPS5744333A (en) 1980-08-30 1980-08-30 Contactless relay

Country Status (1)

Country Link
JP (1) JPS5744333A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04354925A (en) * 1991-05-31 1992-12-09 Shuzo Onodera Automatic water suction device for mop washing machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04354925A (en) * 1991-05-31 1992-12-09 Shuzo Onodera Automatic water suction device for mop washing machine

Similar Documents

Publication Publication Date Title
JPS5646666A (en) All wave rectifier circuit
JPS5572223A (en) Power circuit
JPS5744333A (en) Contactless relay
JP3469045B2 (en) Power semiconductor device and power supply device
JPS5722383A (en) Detecting circuit for open-phase voltage
JPS5797366A (en) Malfunction detector for thyristor converter
JPS5583477A (en) Controlling circuit of transistor oscillating inverter
JPS55112035A (en) Zero-cross ssr circuit
JPS54124248A (en) Constant-voltage circuit with reset signal generating circuit
JPS5783163A (en) Drive circuit for switching regulator
JPS54159653A (en) Switching control circuit
JPS57143622A (en) Switching regulator
KR950006888Y1 (en) Fuse display circuit for rectification circuit
JPS5647129A (en) Alternating-current two-wire photoelectric switch
JPS5735421A (en) Malfunction preventing circuit at power supply application
JPS5790722A (en) Dc power supply circuit
JPS5471318A (en) Motor brake power supply
JPS57160365A (en) Monitoring system for thyristor
JPS57182120A (en) Photocoupler device
JPS5587972A (en) Ac type transmission photoelectric switch
KR960027205A (en) Double voltage automatic switching circuit
JPS59122228A (en) Control circuit of ac power
JPS55680A (en) Detection switch
JPS5615167A (en) Dc-dc converter circuit
JPS57109017A (en) Protecting circuit for boosting type switching regulator