JPS5671330A - Photoelectric switch - Google Patents

Photoelectric switch

Info

Publication number
JPS5671330A
JPS5671330A JP14851279A JP14851279A JPS5671330A JP S5671330 A JPS5671330 A JP S5671330A JP 14851279 A JP14851279 A JP 14851279A JP 14851279 A JP14851279 A JP 14851279A JP S5671330 A JPS5671330 A JP S5671330A
Authority
JP
Japan
Prior art keywords
circuit
power supply
photodetector
capacitor
application
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
JP14851279A
Other languages
Japanese (ja)
Inventor
Aritaka Yorifuji
Seiichi Uyama
Katsuhiko Fukutake
Masaharu Miyazaki
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 JP14851279A priority Critical patent/JPS5671330A/en
Publication of JPS5671330A publication Critical patent/JPS5671330A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
    • H03K5/01—Shaping pulses

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Electronic Switches (AREA)
  • Optical Radar Systems And Details Thereof (AREA)
  • Manipulation Of Pulses (AREA)

Abstract

PURPOSE:To prevent the malfunction due to unstable voltage at the application of power supply, by providing a constant voltage detection circuit detecting stabled power supply voltage and a rapid charge/discharge circuit setting the initial condition of an integrating capacitor with the photodetector side. CONSTITUTION:Modulated light in pulse modulation from a photoemitter A is detected at a photodetector B, and the output circuit is operated by the detection of interruption at the photodetector B. In a photoelectric switch with such operations, the photodetector B is provided with a constant voltage detection circuit 6 and a rapid charge/discharge circuit 7. The circuit 6 detects the stable state of power supply voltage at the application of power supply and restricts the operation of an output circuit 5 until this detection signal is produced. Further, the circuit 7 sets the initial state of the integration capacitor of an integration circuit 4 at the application of power supply and rapidly charges/discharges this capacitor, and by setting the control terminal 12 at H or L level, rapid charge or discharge is determined for the initial state of the capacitor. This is suitably determined for the use of photoelectric switch either for light transmission type or suppression reflecting type.
JP14851279A 1979-11-15 1979-11-15 Photoelectric switch Pending JPS5671330A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14851279A JPS5671330A (en) 1979-11-15 1979-11-15 Photoelectric switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14851279A JPS5671330A (en) 1979-11-15 1979-11-15 Photoelectric switch

Publications (1)

Publication Number Publication Date
JPS5671330A true JPS5671330A (en) 1981-06-13

Family

ID=15454417

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14851279A Pending JPS5671330A (en) 1979-11-15 1979-11-15 Photoelectric switch

Country Status (1)

Country Link
JP (1) JPS5671330A (en)

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