JPS55145433A - Automatic switch - Google Patents

Automatic switch

Info

Publication number
JPS55145433A
JPS55145433A JP5378079A JP5378079A JPS55145433A JP S55145433 A JPS55145433 A JP S55145433A JP 5378079 A JP5378079 A JP 5378079A JP 5378079 A JP5378079 A JP 5378079A JP S55145433 A JPS55145433 A JP S55145433A
Authority
JP
Japan
Prior art keywords
circuit
illuminator
output
load
control
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
JP5378079A
Other languages
Japanese (ja)
Other versions
JPS6410140B2 (en
Inventor
Toshiyuki Masuda
Takeshi Kuno
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 JP5378079A priority Critical patent/JPS55145433A/en
Publication of JPS55145433A publication Critical patent/JPS55145433A/en
Publication of JPS6410140B2 publication Critical patent/JPS6410140B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B39/00—Circuit arrangements or apparatus for operating incandescent light sources
    • H05B39/04—Controlling

Landscapes

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

Abstract

PURPOSE:To prevent the incapability of the automatic lighting due to the misoperation of the operation circuit when the periphery becomes dark, by deciding the output time of the operating circuit with the time constant of the differentiating circuit and then giving the control to the illuminator's lighting. CONSTITUTION:The outputs of operating circuit 4 and automatic lighting circuit 1 are supplied to AND circuit 5, and the output of circuit 5 is differentiated 6 to be sent to memory 7. Then load 3 is controlled with the output of memory 7 and via load control circuit 8. In this case, the output time of circuit 4 is decided with the time constant of circuit 6 to give the control to load 3 formed by the illuminator. As a result, the illuminator is lit up automatically when the periphery becomes dark and then turned out when the periphery becomes bright respectively. Thus the illuminator can be freely turned on and off through circuit 4 to prevent the incapability of the automatic lighting due to the misoperation of circuit 4.
JP5378079A 1979-04-30 1979-04-30 Automatic switch Granted JPS55145433A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5378079A JPS55145433A (en) 1979-04-30 1979-04-30 Automatic switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5378079A JPS55145433A (en) 1979-04-30 1979-04-30 Automatic switch

Publications (2)

Publication Number Publication Date
JPS55145433A true JPS55145433A (en) 1980-11-13
JPS6410140B2 JPS6410140B2 (en) 1989-02-21

Family

ID=12952319

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5378079A Granted JPS55145433A (en) 1979-04-30 1979-04-30 Automatic switch

Country Status (1)

Country Link
JP (1) JPS55145433A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03257792A (en) * 1990-03-07 1991-11-18 Sekisui Chem Co Ltd Illumination control device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0622446U (en) * 1991-08-23 1994-03-25 株式会社日立ホームテック Free access floor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03257792A (en) * 1990-03-07 1991-11-18 Sekisui Chem Co Ltd Illumination control device

Also Published As

Publication number Publication date
JPS6410140B2 (en) 1989-02-21

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