Ignition coil

Details Ignition coil Ignition coil

2008-01-15

2010-10-26

Vo, Hieu T (Department: 3747)

Internal-combustion engines

High tension ignition system

Having a specific ignition coil

Reexamination Certificate

active

07819110

ABSTRACT:
An ignition coil includes a coil portion and an igniter. The coil portion has a primary coil, a secondary coil, and a coil case. The primary coil and the secondary coil are disposed in the coil case. The igniter is disposed on one end side of the coil portion. The igniter includes a metallic frame connected to a voltage source at a constant potential, and a semiconductor integrated chip disposed on the metallic frame. The semiconductor integrated chip has a control circuit for controlling a switching element. The control circuit is formed by a dielectric isolation method. A surface of the semiconductor integrated chip on a silicon substrate-side is opposed to the metallic frame.

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patent: 7528469 (2009-05-01), Kawakita et al.
patent: 2005/0269674 (2005-12-01), Kawakita et al.
patent: 2004/6506 (2004-01-01), None
patent: 2006-19700 (2006-01-01), None

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