JPS57186832A - Delaying circuit - Google Patents

Delaying circuit

Info

Publication number
JPS57186832A
JPS57186832A JP7171381A JP7171381A JPS57186832A JP S57186832 A JPS57186832 A JP S57186832A JP 7171381 A JP7171381 A JP 7171381A JP 7171381 A JP7171381 A JP 7171381A JP S57186832 A JPS57186832 A JP S57186832A
Authority
JP
Japan
Prior art keywords
turned
electric power
capacitor
relay
voltage
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
JP7171381A
Other languages
Japanese (ja)
Inventor
Katsunori Harima
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 JP7171381A priority Critical patent/JPS57186832A/en
Publication of JPS57186832A publication Critical patent/JPS57186832A/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

Landscapes

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

Abstract

PURPOSE:To prepare for reapplication by removing a rush current, and to prevent interception of a breaker, etc. in the home, by delaying an ON time of a relay for supplying electric power to a load, by a simple smoothing circuit, and also turning off a contact of the relay instantaneously when said supply has stopped. CONSTITUTION:An electric power supply switch 2 is turned on, voltage of an electric power source 1 is applied to an electric power supply transformer 5, and a capacitor 12 is charged with voltage of the secondary side of the transformer through a diode 10. As a result of charging, a transistor TR16 is turned on and a TR20 of the next stage is turned off. When this TR20 is turned off, a capacitor 7 is charged through a diode 11, and when it has reached working voltage of a relay 8, a contact 9 is closed, and a rush current preventive resistance 3 connected in series to an inductive load 4 is short-circuited. Also, when the electric power supply has stopped, the charge of the capacitor 12 is discharged instantaneously by resistances 13-15, etc., the TR20 is turned on by the charge of the capacitor 7, and when it has reached nonworking voltage of the relay 8, the contact is opened, the resistance 3 is connected to the load, and preparations for reapplication are executed.
JP7171381A 1981-05-13 1981-05-13 Delaying circuit Pending JPS57186832A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7171381A JPS57186832A (en) 1981-05-13 1981-05-13 Delaying circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7171381A JPS57186832A (en) 1981-05-13 1981-05-13 Delaying circuit

Publications (1)

Publication Number Publication Date
JPS57186832A true JPS57186832A (en) 1982-11-17

Family

ID=13468441

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7171381A Pending JPS57186832A (en) 1981-05-13 1981-05-13 Delaying circuit

Country Status (1)

Country Link
JP (1) JPS57186832A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4530330Y1 (en) * 1967-12-06 1970-11-20
JPS4830377B1 (en) * 1969-12-17 1973-09-19

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4530330Y1 (en) * 1967-12-06 1970-11-20
JPS4830377B1 (en) * 1969-12-17 1973-09-19

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