Electrical arcing protection circuit
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United States of America Patent
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Jun 13, 2006
Issued Date -
N/A
app pub date -
Jul 2, 2004
filing date -
Jul 2, 2004
priority date (Note) -
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status (Latency Note)
Importance
Abstract
A protection circuit, configured to detect and suppress electrical pre-arcing and arcing conditions in a resistive heater wire circuit, comprises a transient voltage suppressor, signal level sensing load coupled to the output of the voltage suppressor, detection and control circuitry, and a high-speed switch or electrical gate. The control circuitry is configured to control the operation of the switch, coupled between said control circuitry and the heater wire, wherein the switch is opened in response to an electrical pre-arcing or arcing condition or a short circuit condition.
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