JPS5755621A - Detection switch - Google Patents

Detection switch

Info

Publication number
JPS5755621A
JPS5755621A JP13137180A JP13137180A JPS5755621A JP S5755621 A JPS5755621 A JP S5755621A JP 13137180 A JP13137180 A JP 13137180A JP 13137180 A JP13137180 A JP 13137180A JP S5755621 A JPS5755621 A JP S5755621A
Authority
JP
Japan
Prior art keywords
time
capacitor
shot
pulse
exors
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
JP13137180A
Other languages
Japanese (ja)
Other versions
JPS607415B2 (en
Inventor
Toshibumi Fukuyama
Masakazu Katayama
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.)
Omron Corp
Original Assignee
Tateisi Electronics Co
Omron Tateisi Electronics Co
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 Tateisi Electronics Co, Omron Tateisi Electronics Co filed Critical Tateisi Electronics Co
Priority to JP13137180A priority Critical patent/JPS607415B2/en
Publication of JPS5755621A publication Critical patent/JPS5755621A/en
Publication of JPS607415B2 publication Critical patent/JPS607415B2/en
Expired 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 put a detection switch in operation by switching time-limiting operation by setting three conditions of one-shot, on-delay and off-delay operations by using two unipolar one-shot switches. CONSTITUTION:When a switch 15 is closed, an input to either one of EXORs 5 and 11 is low, so the EXORs 5 and 11 operate as buffers. A resistance 3, on the other hand, serves as a load on an EXOR1 and a capacitor 2 and a resistance form a differentiating circuit. Its time constant is set much smaller than that of a timer circuit 19 and it can be disregarded. When a signal pulse (a) is outputted from a photoelectric detecting circuit 17, the EXOR5 outputs a pulse (b) with the positive polarity. A transistor (TR)7 turns on only for time t2 to charge a capacitor 9 in the time t2, and the TR7 turns off to discharge the capacitor 9, thereby raising the collector potential of the TR7 with a time constant T determined by a variable resistor 8. The output of an EXOR10, when reaching a threshold level V, is inverted and a one-shot pulse (d) is obtained through an EXOR11.
JP13137180A 1980-09-19 1980-09-19 detection switch Expired JPS607415B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13137180A JPS607415B2 (en) 1980-09-19 1980-09-19 detection switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13137180A JPS607415B2 (en) 1980-09-19 1980-09-19 detection switch

Publications (2)

Publication Number Publication Date
JPS5755621A true JPS5755621A (en) 1982-04-02
JPS607415B2 JPS607415B2 (en) 1985-02-25

Family

ID=15056366

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13137180A Expired JPS607415B2 (en) 1980-09-19 1980-09-19 detection switch

Country Status (1)

Country Link
JP (1) JPS607415B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0337881A (en) * 1989-07-04 1991-02-19 Sony Corp Tape cassette
JPH0518129U (en) * 1991-08-09 1993-03-05 三井精機工業株式会社 Delay action sensor
JPH0746110A (en) * 1993-06-29 1995-02-14 Sunx Ltd Detection switch

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62246757A (en) * 1986-04-18 1987-10-27 Showa Alum Corp Platen roll

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0337881A (en) * 1989-07-04 1991-02-19 Sony Corp Tape cassette
JPH0518129U (en) * 1991-08-09 1993-03-05 三井精機工業株式会社 Delay action sensor
JPH0746110A (en) * 1993-06-29 1995-02-14 Sunx Ltd Detection switch

Also Published As

Publication number Publication date
JPS607415B2 (en) 1985-02-25

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