Novel Electronic/Resistance Adjustable Capacitance Multiplier Circuit with VDCCs and Grounded Resistances

Abstract

A new capacitance multiplier circuit configuration is developed in this research communication which can multiply a value of a grounded capacitor through electronically/resistor tunable multiplication factor. The developed multiplier circuit is constructed employing two VDCCs and three grounded resistances along with grounded capacitance to be multiplied. The presented circuit enjoys following beneficial features: Use of only grounded resistances, grounded resistance/bias current tunable multiplication factor, low active and passive sensitivities of tuning factor, no need of active / passive element matching, and un-deviated behavior under non-ideal environment. The working of developed grounded capacitance multiplier is verified by developing a first order low pass filter employing it.