Distributor with a built-in crank angle sensor

Details Distributor with a built-in crank angle sensor Distributor with a built-in crank angle sensor

1991-11-25

1992-11-24

Wolfe, Willis R.

Internal-combustion engines

High tension ignition system

Having engine component position sensor

1231465A, 123647, F02P 7073

Patent

active

051653800

ABSTRACT:
A distributor for an automotive engine with a built-in crank angle sensor includes a crank angle sensor unit 7A wherein the photodiode 12 opposing the light emitting diode 11 across the rotation disk 6 and the waveform shaper circuit for shaping the output of the photodiode 12 into a rectangular waveform are built into a single-chip photoreceptive integrated circuit 10. The photoreceptive integrated circuit 10A may include constant current source circuit consisting of a voltage divider 31a and 31b, a operational amplifier 32, a transistor 33, and current detector resistor 34, such that the current level through the light emitting diode 11 is kept constant.

REFERENCES:
patent: 3807378 (1974-04-01), Wernet, Jr.
patent: 3868938 (1975-03-01), Trass
patent: 3931804 (1976-01-01), Bowen
patent: 4084566 (1978-04-01), Weiler
patent: 4305371 (1981-12-01), Harada et al.
patent: 4686953 (1987-08-01), Brown
patent: 4747389 (1988-05-01), Yuzawa et al.
patent: 5076249 (1991-12-01), Ikeuchi et al.

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