Abstract
The paper presents a completely new realization of peak detector/full-wave rectifier of input sinusoidal signals employing four CCCIIs (controlled current conveyors), metal-oxide–semiconductor transistors and a single grounded capacitor, without any external resistors and components matching the requirements. The circuit gives a DC output voltage that is the peak input voltage over a wide frequency range, with a very low ripple voltage and low harmonic distortion. The proposed circuit uses an all-pass filter as a 90° phase shifter of the square value of the processed input signal. The proposed circuit is very appropriate to be further developed into integrated circuits. To verify the theoretical analysis, the circuit HSPICE simulations were also included, showing good agreement with the theory.
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