A new approach in designing electrically controlled capacitance multipliers

A new solution for capacitance multiplier based on current injection from a reference capacitor in a circuit loop which contains gate to source voltages is proposed. The loop can be unbalanced thanks to a dc voltage, thereby causing that drain current in one of the transistors to have a multiplied value of the current from reference capacitor. Multiplied current is translated to the circuit input, causing its capacitive behavior.