Slope change detector

Details Slope change detector Slope change detector

1974-04-25

1976-05-18

Zazworsky, John

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307235A, 328114, 328132, H03K 518

Patent

active

039581322

ABSTRACT:
A slope change detector circuit uses a differential amplifier to produce an output signal having two levels, the change of one to the other of which is indicative of a slope change in an input electrical signal. A first input of the differential amplifier communicates directly with a signal source, while a second input communicates with a signal source through a delay network. The delay network includes a switching circuit between the signal source and the differential amplifier comprising a field-effect-transistor and a capacitor; and a feed back circuit comprising a circuit that derives the absolute value of the differential amplifier's output signal and a level detecting zener diode that causes the field effect transistor to change resistance when the absolute value signal reaches a predetermined level.

REFERENCES:
patent: 3564287 (1971-02-01), Todd

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