JPS5492049A - Electronic timer - Google Patents

Electronic timer

Info

Publication number
JPS5492049A
JPS5492049A JP15772077A JP15772077A JPS5492049A JP S5492049 A JPS5492049 A JP S5492049A JP 15772077 A JP15772077 A JP 15772077A JP 15772077 A JP15772077 A JP 15772077A JP S5492049 A JPS5492049 A JP S5492049A
Authority
JP
Japan
Prior art keywords
output
supplied
produced
given
time
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
JP15772077A
Other languages
Japanese (ja)
Other versions
JPS5741854B2 (en
Inventor
Kazuho Sakamoto
Shunichi Nagamoto
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 JP15772077A priority Critical patent/JPS5492049A/en
Publication of JPS5492049A publication Critical patent/JPS5492049A/en
Publication of JPS5741854B2 publication Critical patent/JPS5741854B2/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

  • Electric Clocks (AREA)
  • Electronic Switches (AREA)

Abstract

PURPOSE:To secure the safety for the controlled apparatus by detecting the abnormality of the input signal of the timer counter and thus stopping the operation at the load driving part. CONSTITUTION:The prescribed voltage is secured (1) by the commercial AC current; the waveform shaping (2) is given to the output; and the frequencies of the output to be higher than the threshold level are counted and converted (4) into the time to be supplied to comparison arithmetic part 6. Then the output is produced at part 6 in accordance with the desired time given from setting part 7 in order to drive power driving part 5. In this case, the waveform-shaped output is supplied also to fault detection part 3, and the output is produced at part 3 after a fixed time since the initial state to stop the operation at part 5, 6 and other parts.
JP15772077A 1977-12-29 1977-12-29 Electronic timer Granted JPS5492049A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15772077A JPS5492049A (en) 1977-12-29 1977-12-29 Electronic timer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15772077A JPS5492049A (en) 1977-12-29 1977-12-29 Electronic timer

Publications (2)

Publication Number Publication Date
JPS5492049A true JPS5492049A (en) 1979-07-20
JPS5741854B2 JPS5741854B2 (en) 1982-09-06

Family

ID=15655890

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15772077A Granted JPS5492049A (en) 1977-12-29 1977-12-29 Electronic timer

Country Status (1)

Country Link
JP (1) JPS5492049A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5775529A (en) * 1980-10-24 1982-05-12 Matsushita Electric Industrial Co Ltd Controller for equipment
JPS6180913A (en) * 1984-09-27 1986-04-24 Nippon Signal Co Ltd:The Operation time element circuit
JPS6188642U (en) * 1984-11-16 1986-06-10

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5775529A (en) * 1980-10-24 1982-05-12 Matsushita Electric Industrial Co Ltd Controller for equipment
JPS6180913A (en) * 1984-09-27 1986-04-24 Nippon Signal Co Ltd:The Operation time element circuit
JPS6188642U (en) * 1984-11-16 1986-06-10

Also Published As

Publication number Publication date
JPS5741854B2 (en) 1982-09-06

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