H - Electricity – 03 – H
Patent
H - Electricity
03
H
333/80
H03H 5/12 (2006.01) H03H 11/00 (2006.01) H03H 11/52 (2006.01)
Patent
CA 1063192
SINGLE AMPLIFIER NETWORK FOR SIMULATING AN FDNR CIRCUIT by Charles E. Schmidt ABSTRACT OF THE DISCLOSURE The series combination of an FDNR and a resistor is simulated across a pair of terminals of a one-port network which includes a single differential input operational amplifier. One terminal of the network is connected through a first resistor and a second resistor to associated first and second differential inputs of the amplifier. The output of the amplifier is connected through a third resistor to the first input of the amplifier, through the series combination of a first capacitor and a fourth resistor to the second input of the amplifier; and through the series combination of the third resistor and a fifth resistor to the other terminal of the network which is connected to ground. This other terminal is also connected through a second capacitor to the second input of the amplifier. With the capacitances of the capacitors normalized to unity, the product of the normalized resistances of the second and fifth resistors being equal to the product of the normalized resistances of the first and fourth resistors, and the normalized resistances of the third and fifth resistors being the same value, the impedance presented across the one port of the network corresponds to that of an FDNR in series with a resistor. - 1 -
268497
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