Ignition device
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United States of America Patent
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Aug 7, 2018
Grant Date -
Jan 26, 2017
app pub date -
Apr 9, 2015
filing date -
Apr 10, 2014
priority date (Note) -
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status (Latency Note)
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Abstract
According to an ignition device, a first switching unit applies a voltage between electrodes of by spark plug by turning on/off energization from an on-vehicle battery to a primary coil. Further, a second switching unit applies a voltage having the same direction as a spark discharge generated by turning on/off the first switching unit between the electrodes of the spark plug by supplying electrical energy accumulated in a booster circuit into a primary coil. Accordingly, it is possible to greatly reduce a complexity of the on/off switching of the first and second switching units compared to a conventional technology.
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