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GB864263A - Improvements in or relating to transistor circuit arrangements - Google Patents

Improvements in or relating to transistor circuit arrangements

Info

Publication number
GB864263A
GB864263A GB35665/57A GB3566557A GB864263A GB 864263 A GB864263 A GB 864263A GB 35665/57 A GB35665/57 A GB 35665/57A GB 3566557 A GB3566557 A GB 3566557A GB 864263 A GB864263 A GB 864263A
Authority
GB
United Kingdom
Prior art keywords
photo
collector
transistor
base
relating
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.)
Expired
Application number
GB35665/57A
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.)
Philips Electrical Industries Ltd
Original Assignee
Philips Electrical Industries 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 Philips Electrical Industries Ltd filed Critical Philips Electrical Industries Ltd
Publication of GB864263A publication Critical patent/GB864263A/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
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/78—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used using opto-electronic devices, i.e. light-emitting and photoelectric devices electrically- or optically-coupled
    • H03K17/795—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used using opto-electronic devices, i.e. light-emitting and photoelectric devices electrically- or optically-coupled controlling bipolar transistors
    • H03K17/7955—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used using opto-electronic devices, i.e. light-emitting and photoelectric devices electrically- or optically-coupled controlling bipolar transistors using phototransistors

Landscapes

  • Transforming Light Signals Into Electric Signals (AREA)

Abstract

864,263. Photo-transistor switching circuits. PHILIPS ELECTRICAL INDUSTRIES Ltd. Nov. 15, 1957 [Nov. 20, 1956], No. 35665/57. Class 40(6) In a circuit for reducing free charge storage effects in a photo-transistor 1, a diode 4 exhibiting small charge storage is connected in parallel with the collector base-path and has the same reverse direction as the collector-base junction. By this means the collector is prevented from becoming positive with respect to the base. The photo-transistor is switched by a light source 7.
GB35665/57A 1956-11-20 1957-11-15 Improvements in or relating to transistor circuit arrangements Expired GB864263A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL864263X 1956-11-20

Publications (1)

Publication Number Publication Date
GB864263A true GB864263A (en) 1961-03-29

Family

ID=19849224

Family Applications (1)

Application Number Title Priority Date Filing Date
GB35665/57A Expired GB864263A (en) 1956-11-20 1957-11-15 Improvements in or relating to transistor circuit arrangements

Country Status (1)

Country Link
GB (1) GB864263A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3413480A (en) * 1963-11-29 1968-11-26 Texas Instruments Inc Electro-optical transistor switching device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3413480A (en) * 1963-11-29 1968-11-26 Texas Instruments Inc Electro-optical transistor switching device

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