Electrical transmission or interconnection systems – Nonlinear reactor systems – Parametrons
Patent
1988-03-11
1989-09-12
Zazworsky, John
Electrical transmission or interconnection systems
Nonlinear reactor systems
Parametrons
307358, 328 5, H03K 508, H03K 524
Patent
active
048662984
ABSTRACT:
The invention is directed to a circuit arrangement for evaluating the signals of an inductive sensor such as the kind utilized on internal combustion engines. The coil of the inductive sensor is connected via a coupling capacitor to a differential amplifier connected in the form of a comparator. The coil of the sensor is also connected via the coupling capacitor to a resistance for equalizing charge as well as to a peak-value detector. The peak-value detector is connected to the input of the comparator either directly or via an amplifier circuit and effects a threshold adjustment for the comparator which occurs in dependence upon the signal supplied by the inductive sensor and in dependence upon the rotational speed. Manufacturing variations of the inductive sensor as well as temperature changes have no influence on the output signal.
REFERENCES:
patent: 4169232 (1979-09-01), Henrich
patent: 4267470 (1981-05-01), Kawakami et al.
patent: 4305037 (1981-12-01), Breckel
patent: 4532437 (1985-07-01), Bodig et al.
patent: 4682049 (1987-07-01), Kirschner et al.
Kniss Helmut
Schmidt Wolfgang
Ottesen Walter
Robert & Bosch GmbH
Zazworsky John
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