Electronically programmable output impedance circuit

Details Electronically programmable output impedance circuit Electronically programmable output impedance circuit

1997-01-28

1998-01-13

Callahan, Timothy P.

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Generating sinusoidal output

327260, 327361, 363 74, H03H 1116

Patent

active

057083797

ABSTRACT:
A method and apparatus for generating an AC voltage with user defined inductance and resistance values in series therewith is described. The output voltage of the AC source is sampled and a signal indicative of the total current being generated is derived. The signal is scaled to model a series resistance and scaled and differentiated to model a series inductance. The modelled series resistance and inductance are then combined with the output voltage. Different inductances and resistances can be modelled merely by changing the user's input to the microcontroller that controls the operation of the present invention.

REFERENCES:
patent: 4885674 (1989-12-01), Varga et al.
patent: 4973174 (1990-11-01), Losic et al.
patent: 5001770 (1991-03-01), Losic et al.
patent: 5013998 (1991-05-01), Varga et al.
patent: 5177676 (1993-01-01), Inam et al.

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