Abstract
This paper presents a novel method of designing active inductors using current-controlled voltage sources (CCVSs). The basic idea consists of designing an equivalent inductor, using only capacitors and CCVSs. The signal-flow graph technique is used for this purpose. The CCVSs are emulated by means of nullator/norator pairs. These elements are then realized using second generation current conveyors (CCIIs), and a combination of CCIIs and operational transconductance amplifiers. In addition, a novel design of simulated inductors using operational transresistance amplifiers is presented. The proposed inductors were used to design filters. SPICE simulations are given to highlight viability and to show good reached results.
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Appendix
Appendix
Below we present the transistor level circuits used for the design of the active inductors. Regarding all the SPICE simulations presented above, the technology under consideration is 0.35 μm. Voltage supply is −1.5 V/+1.5 V. Transistors sizes are taken from [36] for the OTA and from [37] for both the CCII and the VF. See Figs. 30, 31, 32.
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Fakhfakh, M., Pierzchała, M. & Rodanski, B. On the design of active inductors with current-controlled voltage sources. Analog Integr Circ Sig Process 73, 89–98 (2012). https://doi.org/10.1007/s10470-011-9798-z
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DOI: https://doi.org/10.1007/s10470-011-9798-z