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US 2017/0149413 A1Published application
Floating immittance emulator
AssigneeKing Fahd University of Petroleum and Minerals
InventorsMuhammad Taher ABUELMA'ATTI, Sagar Kumar DHAR
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Abstract
The floating immittance emulator is presented in four embodiments in which four new topologies for emulating floating immittance functions are detailed. Each circuit uses three current-feedback operational-amplifiers (CFOAs) and three passive elements. The present topologies can emulate lossless and lossy floating inductances; capacitance, resistance, and inductance multipliers; and frequency-dependent positive and negative resistances.
Claims4
A floating immittance emulator circuit, comprising:
- a first current feedback operational amplifier (CFOA) having first y-, x-, z-, and w-terminals, the first z-terminal being connected to ground;
- a second CFOA having second y-, x-, z-, and w-terminals, the second z-terminal being connected to the second y-terminal;
- a third CFOA having third y-, x-, z-, and w-terminals, the third z-terminal being connected to the second x-terminal of the second CFOA;
- a first impedance having a first lead connected to the first y-terminal of the first CFOA and a second lead connected to the third x-terminal of the third CFOA;
- a second impedance having a first lead connected to the first x-terminal of the first CFOA and a second lead connected to the third y-terminal of the third CFOA;
- and
- a third impedance having a first lead connected to the third y-terminal of the third CFOA and a second lead connected to the third w-terminal of the third CFOA;
- wherein the emulator circuit emulates immittance between a voltage vi applied to the first y-terminal of the first CFOA and a voltage v2 applied to the second y-terminal of the second CFOA.
5 more elements
4-14. (canceled)
Dependencies are inferred from the claim text.