Trigger circuit with self-adjusting reference value

Details Trigger circuit with self-adjusting reference value Trigger circuit with self-adjusting reference value

1990-12-31

1992-05-26

Myracle, Jerry W.

Measuring and testing

Internal combustion engine or related engine system or...

Compression

307358, 328115, G01M 1900

Patent

active

051163420

ABSTRACT:
The invention relates to a trigger circuit which compares amplitudes of the signal waveform of a periodic signal to reference values dependent upon the previous signal waveform of this signal. A trigger signal is emitted when the particular reference value is reached. The trigger circuit includes a memory for the particular reference value. The reference value is determined from a portion of the period of the signal to determine a precise triggering point.

REFERENCES:
patent: 3225213 (1965-12-01), Hinrichs et al.
patent: 4866298 (1989-09-01), Kniss et al.

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