GB966598A - Improvements in or relating to electric gating circuits - Google Patents

Improvements in or relating to electric gating circuits

Info

Publication number
GB966598A
GB966598A GB4220861A GB4220861A GB966598A GB 966598 A GB966598 A GB 966598A GB 4220861 A GB4220861 A GB 4220861A GB 4220861 A GB4220861 A GB 4220861A GB 966598 A GB966598 A GB 966598A
Authority
GB
United Kingdom
Prior art keywords
transistor
terminal
conducting
output
time
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
GB4220861A
Inventor
Edward Hands
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.)
General Electric Co PLC
Original Assignee
General Electric Co PLC
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 General Electric Co PLC filed Critical General Electric Co PLC
Priority to GB4220861A priority Critical patent/GB966598A/en
Publication of GB966598A publication Critical patent/GB966598A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
    • H03K3/26—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback
    • H03K3/28—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using means other than a transformer for feedback
    • H03K3/281—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using means other than a transformer for feedback using at least two transistors so coupled that the input of one is derived from the output of another, e.g. multivibrator
    • 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
    • H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
    • H03K17/60—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being bipolar transistors

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Rectifiers (AREA)

Abstract

966,598. Transistor gating circuits. GENERAL ELECTRIC CO. Ltd. Nov. 20, 1962 [Nov. 24, 1961], No. 42208/61. Heading H3T. In a gating circuit in which an oscillatory signal is passed by the gate when a first control signal exceeds a second, the gate is held open at least for a predetermined minimum time, even if the first control signal exceeds the second for less than this time. If the potential applied at terminal 1 is less than that at terminal 2, transistor 3 is cut off, transistor 6 is only slightly conducting and transistor 15 is cut off, preventing a square wave signal applied to terminal 19 from reaching the output terminal 24. If terminal 1 becomes more positive than terminal 2, transistors 3, 6, 15 become fully conducting, and the input at 19 is passed by transistor 15 to the output 24. Part of the square wave output at the collector of transistor 15 is rectified by diode 27 and is applied via capacitor 28 to bias transistor 6 in the conducting direction, so that this transistor, and hence transistor 15, will remain conducting at least until the change in charge on capacitor 28 is completed even if the potential at terminal 1 drops below that at terminal 2 before this time.
GB4220861A 1961-11-24 1961-11-24 Improvements in or relating to electric gating circuits Expired GB966598A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4220861A GB966598A (en) 1961-11-24 1961-11-24 Improvements in or relating to electric gating circuits

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4220861A GB966598A (en) 1961-11-24 1961-11-24 Improvements in or relating to electric gating circuits

Publications (1)

Publication Number Publication Date
GB966598A true GB966598A (en) 1964-08-12

Family

ID=10423329

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4220861A Expired GB966598A (en) 1961-11-24 1961-11-24 Improvements in or relating to electric gating circuits

Country Status (1)

Country Link
GB (1) GB966598A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2564263A1 (en) * 1984-05-11 1985-11-15 Radiotechnique Compelec STATIC RELAY FOR LOW VOLTAGE CONTINUOUS CURRENT

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2564263A1 (en) * 1984-05-11 1985-11-15 Radiotechnique Compelec STATIC RELAY FOR LOW VOLTAGE CONTINUOUS CURRENT
EP0164770A1 (en) * 1984-05-11 1985-12-18 Rtc-Compelec Static relay for low-voltage direct current

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