JPS5760734A - Delay circuit for turning-off - Google Patents

Delay circuit for turning-off

Info

Publication number
JPS5760734A
JPS5760734A JP55135014A JP13501480A JPS5760734A JP S5760734 A JPS5760734 A JP S5760734A JP 55135014 A JP55135014 A JP 55135014A JP 13501480 A JP13501480 A JP 13501480A JP S5760734 A JPS5760734 A JP S5760734A
Authority
JP
Japan
Prior art keywords
push
common line
line
button
button switch
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
JP55135014A
Other languages
Japanese (ja)
Inventor
Sadao Fukuzawa
Toru Kahara
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 JP55135014A priority Critical patent/JPS5760734A/en
Publication of JPS5760734A publication Critical patent/JPS5760734A/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
    • H03K17/28—Modifications for introducing a time delay before switching
    • H03K17/292—Modifications for introducing a time delay before switching in thyristor, unijunction transistor or programmable unijunction transistor switches

Landscapes

  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Electronic Switches (AREA)

Abstract

PURPOSE:To prevent forgetting to turn off a push-button switch, by connecting a current detecting device, a push-button switch connected to the load side of a TRIAC, a common line, and the other contact line and by using the push-button switch connected between contact lines. CONSTITUTION:A current detecting device 3 is constituted by the primary winding of a current transformer which connects a common line 2a of a three-way switch wiring 2 and one contact line 2b, and the common line 2a in the power source side and the other contact line 2c are connected from the device 3. A TRIAC9 is provided which turns on push-button switches 4a, 4b, and 4c to charge a capacitor 5 by the flowed current and turns off switches 4 next to discharge through a resistance 6 and is turned on at a constant time after the output of the device 3 disappears. Thus, the switch circuit is turned off after a constant time by one delay unit, thereby preventing forgetting to turn off the switch circuit.
JP55135014A 1980-09-27 1980-09-27 Delay circuit for turning-off Pending JPS5760734A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55135014A JPS5760734A (en) 1980-09-27 1980-09-27 Delay circuit for turning-off

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55135014A JPS5760734A (en) 1980-09-27 1980-09-27 Delay circuit for turning-off

Publications (1)

Publication Number Publication Date
JPS5760734A true JPS5760734A (en) 1982-04-12

Family

ID=15141908

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55135014A Pending JPS5760734A (en) 1980-09-27 1980-09-27 Delay circuit for turning-off

Country Status (1)

Country Link
JP (1) JPS5760734A (en)

Similar Documents

Publication Publication Date Title
FR2340638A1 (en) Overvoltage protection system - limits switching voltages using vacuum cell for switched power transformer tappings
DE3172547D1 (en) Failure-indicating circuit for a current load connected over an electronic switching device
US3846648A (en) Solid-state timer switch providing ac power to a load for a predetermined time after a main source of power is removed
JPS57206944A (en) Driving circuit for switching element
MY103302A (en) Direct current power supply
JPS5760734A (en) Delay circuit for turning-off
JPS5576578A (en) Overdischarge-preventing circuit for battery
JPS5746681A (en) Inverter circuit
JPS6478948A (en) Power supply for car
JPS55105840A (en) Interface circuit
JPS5719167A (en) Pulse arc welding device
JPS56159716A (en) Direct-current electric power device
SU868607A1 (en) Device for registering network voltage loss duration
JPS56103975A (en) Power source circuit
JPS5493434A (en) Voltage switching circuit
JPS5612123A (en) Electric-current feedback type driving circuit
KR970008822B1 (en) Motor line connection automotive converter
SU1718376A1 (en) Electric circuit changeover switch
JPS5569822A (en) Power unit
JPS57176835A (en) Switching power source
JPS56132820A (en) Electronic switch
JPS6485568A (en) Semiconductor device
FR2244997A1 (en) Monitoring device for electric cct. in vehicle - has transformer with primary winding in monitored cct.
JPS57143926A (en) Load controlling circuit
JPS56132019A (en) High-voltage pulse circuit