Solid-state exciter circuit with two drive pulses having indendently adjustable durations
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United States of America Patent
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Aug 5, 1997
Grant Date -
N/A
app pub date -
Oct 27, 1995
filing date -
Oct 27, 1995
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A solid-state exciter circuit for establishing arc discharges in igniter devices. The exciter circuit includes first and second transformers, first and second main discharge capacitors, and first and second exciter sub-circuits for controlling the charging and discharging of the latter capacitors. The exciter sub-circuits independently generate component ignition or drive pulses each of which has a magnitude and duration that is optimized for a respective part of an ignition event. The exciter circuit then combines these pulses to produce a composite ignition pulse having voltage and current waveforms that so match the discharge characteristics of an igniter that the latter generates an arc of the desired magnitude and duration substantially without being overexcited or underexcited.
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