| 摘要 |
PCT No. PCT/JP82/00313 Sec. 371 Date Mar. 2, 1983 Sec. 102(e) Date Mar. 2, 1983 PCT Filed Aug. 10, 1982 PCT Pub. No. WO83/00537 PCT Pub. Date Feb. 17, 1983.An ignition apparatus for an internal combustion engine which includes a signal rotor on a rotary shaft for being rotated in synchronism with a coil wound about a core, a metal heat sink, and a frame connected to the heat sink so as to form a casing. The frame has a recess opening to its interior and grooves extending into the recess. An integrated circuit is disposed on the heat sink. The integrated circuit includes a capacitor electrically connected to the core coil to form a resonance circuit, an oscillation energy supply circuit for supplying oscillation energy to the resonance circuit, an oscillation detector circuit for producing an output signal in response to the detection of the oscillation in the resonance circuit, an amplifier for amplifying the output signal, and a switch for interrupting the amplified signal. An ignition coil responds to interruption of the amplified signal by the switch for generating a high voltage. The core coil is electrically connected to the capacitor by electrical conductors including electrical lead wires which extend from the recess in the grooves formed therein.
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