JPS5531355A - Alternating current type timer - Google Patents

Alternating current type timer

Info

Publication number
JPS5531355A
JPS5531355A JP10476078A JP10476078A JPS5531355A JP S5531355 A JPS5531355 A JP S5531355A JP 10476078 A JP10476078 A JP 10476078A JP 10476078 A JP10476078 A JP 10476078A JP S5531355 A JPS5531355 A JP S5531355A
Authority
JP
Japan
Prior art keywords
circuit
timer
resistance
time
diode
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
JP10476078A
Other languages
Japanese (ja)
Other versions
JPS6161296B2 (en
Inventor
Eizo Ogawa
Katsuhiko Fukutake
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 JP10476078A priority Critical patent/JPS5531355A/en
Publication of JPS5531355A publication Critical patent/JPS5531355A/en
Publication of JPS6161296B2 publication Critical patent/JPS6161296B2/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

Landscapes

  • Electronic Switches (AREA)

Abstract

PURPOSE:To obtain an AC-type timer featuring a long life time even with a continuous use by reducing the heat generation of the voltage drop use resistor connected to the timer circuit and thus increasing the life time of the smoothing capacitor used in the IC-formed circuit. CONSTITUTION:Relay coil Ry of the output relay in the AC timer is connected to AC power source E in series to time limit switch output terminal Tt of timer circuit T and via diode D. At the same time, the serial circuit of constant voltage element 1 formed by the Zener diode and voltage drop resistance R is connected between the joint of relay coil Ry and diode D and power terminal Te of circuit T. Furthermore, smoothing capacitor C is connected in parallel to circuit T to reduce the voltage of resistance R at the actuating time of circuit T via element 1, thus reducing the heat generation quantity of resistance R. As a result, the life time of capacitor C provided to the IC-formed circuit can be increased, making possible the continuous conduction for the timer.
JP10476078A 1978-08-28 1978-08-28 Alternating current type timer Granted JPS5531355A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10476078A JPS5531355A (en) 1978-08-28 1978-08-28 Alternating current type timer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10476078A JPS5531355A (en) 1978-08-28 1978-08-28 Alternating current type timer

Publications (2)

Publication Number Publication Date
JPS5531355A true JPS5531355A (en) 1980-03-05
JPS6161296B2 JPS6161296B2 (en) 1986-12-25

Family

ID=14389434

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10476078A Granted JPS5531355A (en) 1978-08-28 1978-08-28 Alternating current type timer

Country Status (1)

Country Link
JP (1) JPS5531355A (en)

Also Published As

Publication number Publication date
JPS6161296B2 (en) 1986-12-25

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