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A controllable modification of current feedback amplifier is presented in this contribution. In spite of classical conception, there are two current outputs of both polarities available and two buffered voltage outputs. The control of parameters consists of adjustable current gain between X and Z ports and intrinsic input resistance of current input (X). We proposed complex model of active element,...
An Operational Transresistance amplifier (OTRA) based sinusoidal oscillator is proposed. This oscillator circuit provides independent control on frequency and condition of oscillation. The oscillator circuit is insensitive to parasitic input capacitances due to internally grounded terminals of OTRA. PSPICE simulations have been given to verify the theoretical analysis.
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