Plasma ignition device and plasma ignition method
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United States of America Patent
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Jan 31, 2017
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N/A
app pub date -
Sep 1, 2011
filing date -
Nov 16, 2010
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Abstract
A plasma ignition device 20 includes a spark plug 100, a DC power supply 210, an AC power supply 220, and a coupling section 300. The coupling section 300 includes a capacitor 320 which electrically connects the AC power supply 220 to the spark plug 100. The coupling section 300 reduces the capacitance of the capacitor 320 in the second ignition mode in which transmission of AC power is halted, as compared with that in the first ignition mode in which AC power is transmitted to the spark plug 100.
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