GB1110968A - Pulse generators - Google Patents

Pulse generators

Info

Publication number
GB1110968A
GB1110968A GB4053865A GB4053865A GB1110968A GB 1110968 A GB1110968 A GB 1110968A GB 4053865 A GB4053865 A GB 4053865A GB 4053865 A GB4053865 A GB 4053865A GB 1110968 A GB1110968 A GB 1110968A
Authority
GB
United Kingdom
Prior art keywords
transistor
collapsing
flux
switching
supply
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
GB4053865A
Inventor
Hardev Reval
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.)
CAV Ltd
Original Assignee
CAV 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 CAV Ltd filed Critical CAV Ltd
Priority to GB4053865A priority Critical patent/GB1110968A/en
Publication of GB1110968A publication Critical patent/GB1110968A/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
    • H03K3/30—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 a transformer for feedback, e.g. blocking oscillator

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Dc-Dc Converters (AREA)

Abstract

1,110,968. Transistor blocking oscillators. C.A.V. Ltd. 23 Sept., 1965, No. 40538/65. Heading H3T. In a pulse generator, the primary winding 9 of a transformer 8 and the emitter-collector path of a transistor 12 are connected in series across a source of D.C. supply 1, 2, a secondary winding 10 is connected between the base of the transistor and a source of supply and is such as to provide feedback to speed up the switching on and off of the transistor, another secondary winding 11 is arranged to provide an output, and means are provided (Zener diode 14) for shorting out a portion of the primary winding whilst the flux in the coil is collapsing, whereby to control the magnitude of the collectoremitter voltage. A timing circuit 6, 7 for initiating conduction of the transistor includes an adjustable resistor 7 for altering the repetition frequency. Diode 13 is provided in the load circuit and so connected to conduct only when the flux is collapsing, thus preventing excessive current during the switching-on of transistor 12 and in the event of a shortcircuited load, which may be an electric fence.
GB4053865A 1965-09-23 1965-09-23 Pulse generators Expired GB1110968A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4053865A GB1110968A (en) 1965-09-23 1965-09-23 Pulse generators

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4053865A GB1110968A (en) 1965-09-23 1965-09-23 Pulse generators

Publications (1)

Publication Number Publication Date
GB1110968A true GB1110968A (en) 1968-04-24

Family

ID=10415406

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4053865A Expired GB1110968A (en) 1965-09-23 1965-09-23 Pulse generators

Country Status (1)

Country Link
GB (1) GB1110968A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2356888A1 (en) * 2008-11-13 2011-08-17 Gallagher Group Limited Electric fence energiser

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2356888A1 (en) * 2008-11-13 2011-08-17 Gallagher Group Limited Electric fence energiser
EP2356888A4 (en) * 2008-11-13 2013-07-17 Gallagher Group Ltd Electric fence energiser

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