GB2299471A - A pulse generator for electric fences - Google Patents

A pulse generator for electric fences

Info

Publication number
GB2299471A
GB2299471A GB9609375A GB9609375A GB2299471A GB 2299471 A GB2299471 A GB 2299471A GB 9609375 A GB9609375 A GB 9609375A GB 9609375 A GB9609375 A GB 9609375A GB 2299471 A GB2299471 A GB 2299471A
Authority
GB
United Kingdom
Prior art keywords
output
pulse
switch
inductor
circuit
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
GB9609375A
Other versions
GB9609375D0 (en
GB2299471B (en
Inventor
John Talbot Boys
Andrew William Green
Robert Charles Brian Woodhead
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.)
Stafix Electric Fencing Ltd
Original Assignee
Stafix Electric Fencing 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
Priority claimed from NZ250037A external-priority patent/NZ250037A/en
Application filed by Stafix Electric Fencing Ltd filed Critical Stafix Electric Fencing Ltd
Publication of GB9609375D0 publication Critical patent/GB9609375D0/en
Publication of GB2299471A publication Critical patent/GB2299471A/en
Application granted granted Critical
Publication of GB2299471B publication Critical patent/GB2299471B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H03K3/53—Generators characterised by the type of circuit or by the means used for producing pulses by the use of an energy-accumulating element discharged through the load by a switching device controlled by an external signal and not incorporating positive feedback
    • H03K3/57—Generators characterised by the type of circuit or by the means used for producing pulses by the use of an energy-accumulating element discharged through the load by a switching device controlled by an external signal and not incorporating positive feedback the switching device being a semiconductor device
    • 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
    • H03K17/80—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used using non-linear magnetic devices; using non-linear dielectric devices
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K4/00—Generating pulses having essentially a finite slope or stepped portions
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05C—ELECTRIC CIRCUITS OR APPARATUS SPECIALLY DESIGNED FOR USE IN EQUIPMENT FOR KILLING, STUNNING, OR GUIDING LIVING BEINGS
    • H05C1/00—Circuits or apparatus for generating electric shock effects
    • H05C1/04—Circuits or apparatus for generating electric shock effects providing pulse voltages

Abstract

A circuit (700) for an electric fence energiser (examples are 6 or 24 Joule versions) which synthesises a pulse having a raised cosine waveforrn at a first or bus voltage uses a ferrite-cored output transformer (701) to multiply the voltage of the pulse to the required level. A raised cosine waveform has a low harmonic content and little filtering of highpower pulses is required in order to minimise electromagnetic emissions. On closure of a switch (707) in series with an inductor (705), a first capacitor bank (703) commerces charging a second smaller capacitor bank (704) in parallel with the output primary, and after the peak of the pulse any remaining charge is dissipated in a resistor (708) with the aid of a saturable inductor (702), acting as a switch. The saturable inductor may be the output transformer itself for lower output energisers. The output exhibits little or any reversal of polarity when matched to its load. The circuit may also be useful for applications such as strobe flashers in aircraft.
GB9609375A 1993-10-22 1994-10-18 A pulse generator for electric fences Expired - Fee Related GB2299471B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
NZ250037A NZ250037A (en) 1993-10-22 1993-10-22 Electric fence energiser circuit with controlled pulse shape
NZ25097094 1994-02-24
PCT/NZ1994/000113 WO1995011550A1 (en) 1993-10-22 1994-10-18 A pulse generator for electric fences

Publications (3)

Publication Number Publication Date
GB9609375D0 GB9609375D0 (en) 1996-07-10
GB2299471A true GB2299471A (en) 1996-10-02
GB2299471B GB2299471B (en) 1998-06-03

Family

ID=26651246

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9609375A Expired - Fee Related GB2299471B (en) 1993-10-22 1994-10-18 A pulse generator for electric fences

Country Status (3)

Country Link
AU (1) AU703132B2 (en)
GB (1) GB2299471B (en)
WO (1) WO1995011550A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6020658A (en) * 1995-05-12 2000-02-01 Stafix Electric Fencing Ltd. Electric fence energizer

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NZ526109A (en) * 2003-05-26 2006-09-29 Auckland Uniservices Ltd Parallel-tuned pick-up system with multiple voltage outputs
NZ572826A (en) * 2008-11-13 2010-05-28 Gallagher Group Ltd Electric fence energiser
RU2666459C1 (en) * 2015-10-26 2018-09-07 Публичное акционерное общество "Долгопрудненское научно-производственное предприятие" Pulse discriminator of arbitrary form into short rectangular ones
CN109757977B (en) * 2018-12-29 2021-06-04 九阳股份有限公司 Electric heating kettle
RU2708937C1 (en) * 2019-05-08 2019-12-12 Федеральное государственное автономное образовательное учреждение высшего образования "Национальный исследовательский Томский политехнический университет" Inductive pulse generator

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4443839A (en) * 1980-12-23 1984-04-17 Tokyo Shibaura Denki Kabushiki Kaisha Single ended, separately driven, resonant DC-DC converter
US4561046A (en) * 1983-12-22 1985-12-24 Gte Automatic Electric Incorporated Single transistor forward converter with lossless magnetic core reset and snubber network
US4675796A (en) * 1985-05-17 1987-06-23 Veeco Instruments, Inc. High switching frequency converter auxiliary magnetic winding and snubber circuit
US4859868A (en) * 1986-07-04 1989-08-22 Gallagher Electronics Limited Electric fence energizer
GB2261779A (en) * 1991-11-20 1993-05-26 Tokyo Electric Co Ltd AC-DC-AC converter, particularly for fluorescent lamps

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU493016A1 (en) * 1972-10-09 1975-11-25 Предприятие П/Я Р-6047 The converter of the unipolar signal to the multipole
SU729369A1 (en) * 1977-05-13 1980-04-25 Государственный Проектно-Конструкторский И Научно-Исследовательский Институт По Автоматизации Угольной Промышленности Vane-to-platform connection assembly
SU1705916A1 (en) * 1989-08-04 1992-01-15 Институт Аналитического Приборостроения Научно-Технического Объединения Ан Ссср Method of initiation of spark discharge in mass-spectrometric spark ion source and mass-spectrometric spark source of ions

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4443839A (en) * 1980-12-23 1984-04-17 Tokyo Shibaura Denki Kabushiki Kaisha Single ended, separately driven, resonant DC-DC converter
US4561046A (en) * 1983-12-22 1985-12-24 Gte Automatic Electric Incorporated Single transistor forward converter with lossless magnetic core reset and snubber network
US4675796A (en) * 1985-05-17 1987-06-23 Veeco Instruments, Inc. High switching frequency converter auxiliary magnetic winding and snubber circuit
US4859868A (en) * 1986-07-04 1989-08-22 Gallagher Electronics Limited Electric fence energizer
GB2261779A (en) * 1991-11-20 1993-05-26 Tokyo Electric Co Ltd AC-DC-AC converter, particularly for fluorescent lamps

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6020658A (en) * 1995-05-12 2000-02-01 Stafix Electric Fencing Ltd. Electric fence energizer

Also Published As

Publication number Publication date
AU703132B2 (en) 1999-03-18
AU8006394A (en) 1995-05-08
WO1995011550A1 (en) 1995-04-27
GB9609375D0 (en) 1996-07-10
GB2299471B (en) 1998-06-03

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20121018