CMOS dual output current mode half-wave rectifier

Abstract

A CMOS dual output current mode half-wave rectifier is presented. The proposed rectifier is composed of three main components: a dual output V-I converter, two half-wave current rectifiers and two I-V converters. A voltage input signal is changed into two current signals by the V-I converter. The current rectifiers rectify these current signals, resulting in positive and negative half-wave current signals that are converted to positive and negative half-wave voltage signals by the I-V converters. The theory of operation is described, and the simulated results obtained from the PSPICE program are used to verify the theoretical prediction. Simulated rectifier performance with a 0.5 μm MOSFET model using ±1.2 V supply voltage demonstrates good rectifier integrity at operating frequencies up to 100 MHz.