Simulated coupled inductors using generalized impedance converte

Details Simulated coupled inductors using generalized impedance converte Simulated coupled inductors using generalized impedance converte

1992-12-01

1994-08-30

Gensler, Paul

Wave transmission lines and networks

Negative resistance or reactance networks of the active type

333214, H03H 1104

Patent

active

053431774

ABSTRACT:
Apparatus and methods are disclosed for use in electronic circuits that contain Generalized Impedance Converters and shape frequency response. The combined effect of two Generalized Impedance Converters 30 and 34 with their outputs connected to a coupler 32 simulates coupled capacitors FIG. 2(B) or coupled inductors FIG. 2(A) through impedance scaling. The resistors used in the coupler 32 define the degree of coupling between the first and second Generalized Impedance Converter 30 and 34 respectively. In one embodiment, simulated coupled inductors 96, 98 and 100 are used in a bandpass circuit along with additional R-C devices to control upper and lower sideband attenuation and resonant frequency. Here, the resistors in the coupler device 86 simulate the mutual inductance 98 of coupled inductors.

REFERENCES:
patent: 5093642 (1992-03-01), Mittel
Soderstrand, Active R Ladders: High-Frequency High Order Low-Sensitivity Active R Filters Without External Capacitors, IEEE Trans. on C&S, Dec. 1978, pp. 1032-1038.
Suzuki, Technique for Simplifying GIC Networks and Its Application to Capacitance-Multipliable LC Simulation Active Filters, Proc. of IEEE, Jun. 1980, pp. 741-743.

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