JPS5497356A - Delay off circuit - Google Patents

Delay off circuit

Info

Publication number
JPS5497356A
JPS5497356A JP462278A JP462278A JPS5497356A JP S5497356 A JPS5497356 A JP S5497356A JP 462278 A JP462278 A JP 462278A JP 462278 A JP462278 A JP 462278A JP S5497356 A JPS5497356 A JP S5497356A
Authority
JP
Japan
Prior art keywords
switch
circuit
load
capacitor
delay
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.)
Granted
Application number
JP462278A
Other languages
Japanese (ja)
Other versions
JPS5761215B2 (en
Inventor
Kunio Kimata
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 Holdings Corp
Original Assignee
Matsushita Electric Industrial Co 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 Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP462278A priority Critical patent/JPS5497356A/en
Publication of JPS5497356A publication Critical patent/JPS5497356A/en
Publication of JPS5761215B2 publication Critical patent/JPS5761215B2/ja
Granted 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

  • Electronic Switches (AREA)
  • Relay Circuits (AREA)

Abstract

PURPOSE:To constitute an electric timer circuit which is suitable to a ventilation fan in a flush toilet, kitchen, or the like by feeding a current to a load at the same time when a switch is ON and by maintaining the feeding to the load for a while after the switch is turned OFF. CONSTITUTION:This circuit consists of the load circuit which connects fan motor M of the ventilation fan as a load to power terminals X and Y of the AC power supply via switch SW, relay RL-C which operates by normally open relay switch RL connected in parallel to switch SW, and the delay OFF control circuit which opens this relay RL-C a little bit after switch SW is turned OFF. The common connection point between contact RL-C of this control circuit and switch SW is connected to the connection point between transistor Tr2 and coil RL and also to capacitor C1 charged with a DC voltage rectified by diodes D1 and D2, and timer capacitor CT and resistance RT are both provided between capacitor C1 and normally closed contact NC of switch SW, thereby constituting the delay OFF circuit.
JP462278A 1978-01-18 1978-01-18 Delay off circuit Granted JPS5497356A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP462278A JPS5497356A (en) 1978-01-18 1978-01-18 Delay off circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP462278A JPS5497356A (en) 1978-01-18 1978-01-18 Delay off circuit

Publications (2)

Publication Number Publication Date
JPS5497356A true JPS5497356A (en) 1979-08-01
JPS5761215B2 JPS5761215B2 (en) 1982-12-23

Family

ID=11589143

Family Applications (1)

Application Number Title Priority Date Filing Date
JP462278A Granted JPS5497356A (en) 1978-01-18 1978-01-18 Delay off circuit

Country Status (1)

Country Link
JP (1) JPS5497356A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4535274A (en) * 1983-07-20 1985-08-13 Toyo Electric Co., Ltd. Driving circuit for brushless D.C. motor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4535274A (en) * 1983-07-20 1985-08-13 Toyo Electric Co., Ltd. Driving circuit for brushless D.C. motor

Also Published As

Publication number Publication date
JPS5761215B2 (en) 1982-12-23

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