JPS5755620A - Projecting circuit for photoelectric switch - Google Patents

Projecting circuit for photoelectric switch

Info

Publication number
JPS5755620A
JPS5755620A JP13137580A JP13137580A JPS5755620A JP S5755620 A JPS5755620 A JP S5755620A JP 13137580 A JP13137580 A JP 13137580A JP 13137580 A JP13137580 A JP 13137580A JP S5755620 A JPS5755620 A JP S5755620A
Authority
JP
Japan
Prior art keywords
resistance
capacitor
base
emitter
series
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
JP13137580A
Other languages
Japanese (ja)
Inventor
Yasuyuki Watanabe
Ryoichi Miyake
Hideaki Hachidan
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 JP13137580A priority Critical patent/JPS5755620A/en
Publication of JPS5755620A publication Critical patent/JPS5755620A/en
Pending 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 set a projection period and wide pulse width freely by connecting a resistance in series to a capacitor connected between the base of the 1st transistor (TR) and the collector of the 2nd TR. CONSTITUTION:A resistance 5 is connected in series to a capacitor 10 connected between the base of a TR1 and the collector of a TR2. When the base-emitter voltage of the TR1 becomes a forward bias, the TRs 1 and 2 enter conduction states. As the TRs 1 and 2 turn on completely, they are saturated to turn on a light emission diode 3 sufficiently. The capacitor 10 is charged through the series circuit of the base-emitter equivalent rasistance of the TR1 and a resistance 5 and discharged through a resistance 8, a DC power source, a resistance 4, a diode 3, and the resistance 5. A projection period is nearly determined by the capacitor 10 and resistance 8, and a pulse width is determined by the capacitor 10, the resistance 5, and the emitter-base equivalent resistance of the TR1.
JP13137580A 1980-09-19 1980-09-19 Projecting circuit for photoelectric switch Pending JPS5755620A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13137580A JPS5755620A (en) 1980-09-19 1980-09-19 Projecting circuit for photoelectric switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13137580A JPS5755620A (en) 1980-09-19 1980-09-19 Projecting circuit for photoelectric switch

Publications (1)

Publication Number Publication Date
JPS5755620A true JPS5755620A (en) 1982-04-02

Family

ID=15056464

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13137580A Pending JPS5755620A (en) 1980-09-19 1980-09-19 Projecting circuit for photoelectric switch

Country Status (1)

Country Link
JP (1) JPS5755620A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011027128A1 (en) 2009-09-03 2011-03-10 The University Of Manchester Use of non-digestible oligosaccharides

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011027128A1 (en) 2009-09-03 2011-03-10 The University Of Manchester Use of non-digestible oligosaccharides
US10265335B2 (en) 2009-09-03 2019-04-23 Curapel (Scotland) Limited Use of non-digestible oligosaccharides

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