Nth Order function converter

Details Nth Order function converter Nth Order function converter

1981-02-13

1985-03-26

Heyman, John S.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

328144, G06G 720

Patent

active

045075778

ABSTRACT:
An analog circuit for implementing nonlinear operators such as an Nth-root extractor or an Nth-power operator. Two input currents yield one output current having the relationship I.sub.1 =I.sub.k.sup.-n I.sub.2.sup.n+2, where n is a positive integer and I.sub.k is a gain setting current. When n=1 the circuit functions as a square root extractor or a squaring converter. The present circuit is readily implemented with bipolar technology and offers high speed performance and temperature stability without external compensation. Typical applications of the present circuit include RMS measurement, auto-correlation, power measurement and gain compression/expansion.

REFERENCES:
patent: 3599013 (1971-08-01), Cope
patent: 3712977 (1973-01-01), Rice
patent: 3967105 (1976-06-01), Harrington
patent: 3986048 (1976-10-01), Okada
patent: 4375038 (1983-02-01), Crosby

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