Title :
FTFN with variable current gain
Author :
Tangsrirat, Worapong ; Unhavanich, Sumalee ; Damawipata, T. ; Surakampontorn, Wanlop
Author_Institution :
Dept. of Control Eng., King Mongkut´´s Inst. of Technol. Ladkrabang, Bangkok, Thailand
Abstract :
This paper proposes a circuit configuration for the realization of a four-terminal floating nullor (FTFN) with electronically tunable current gain. It mainly consists of an op amp in input together with two complementary current mirrors with controlled gain and two standard improved Wilson (1990) current mirrors. The validity of the performance of the scheme is verified through PSPICE simulation results. Some example applications in the design of the proposed tunable FTFN as a tunable active element show that the circuit properties can he varied by electronic means are also included
Keywords :
active networks; circuit simulation; circuit tuning; current mirrors; multiterminal networks; network synthesis; operational amplifiers; FTFN; PSPICE simulation results; Wilson current mirrors; analog circuit design; circuit configuration; circuit properties; complementary current mirrors; electronically tunable current gain; four-terminal floating nullor; op amp; tunable active element; variable current gain; Circuit optimization; Circuit simulation; Current mode circuits; Frequency; Gain; Mirrors; Operational amplifiers; Oscillators; SPICE; Tunable circuits and devices;
Conference_Titel :
TENCON 2001. Proceedings of IEEE Region 10 International Conference on Electrical and Electronic Technology
Print_ISBN :
0-7803-7101-1
DOI :
10.1109/TENCON.2001.949582
