Novel Precision Current-mode Full-wave Rectifier and Class B Push-Pull Current amplifier Using BiCMOS Current-controlled Current Conveyors

This article introduces a novel version for implementing current-mode precision full-wave rectifier and class B push-pull current amplifier. The features of the proposed circuits are that: it can rectify and amplify current signal with controllable output magnitude via an input bias current: the output current save ideally free from temperature variation. In addition, direction of the output current signals can be arbitrarily controlled by current in the circuits to be either positive or negative without changing circuit topology, which differs from the previous literatures. Circuit descriptions merely consist of 3 BiCMOS CCCIIs. The performances of the proposed circuits are investigated through PSPICE. They show that the proposed circuits can function as a current-mode precision full-wave rectifier and push-pull current amplifier where input current range from -80μA to 80μA can be achieved at ±2.5V power supplies. The maximum power consumption is 1.43mW. In addition, the highest frequency is restricted at up to megahertz range.