Pulse generator for electric fences
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 16, 1998
Grant Date -
N/A
app pub date -
Aug 14, 1996
filing date -
Oct 22, 1993
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A circuit (700) for an electric fence energizer (examples are 6 or 24 Joule versions) which synthesizes a pulse having a raised cosine waveform 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 high-power pulses is required in order to minimize electromagnetic emissions. On closure of a switch (707) in series with an inductor (705) a first capacitor bank (703) commences 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 energizers. 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.
First Claim
Other Claims data not available