Importance

Loading Importance Indicators...

Abstract

A full wave rectifier circuit comprising a differential amplifier which drives a rectifier stage via a driver stage and to which negative feedback is applied. A signal current to be rectified is applied to an input of the differential amplifier. This current flows directly to the output of the rectifier stage during one half-cycle and is applied to said rectifier stage via a first current mirror during the other half-cycle. The supply current of this current mirror together with the supply current of the driver stage are delivered by a current source. A reduction of the voltage offset is obtained in that the current source is a controllable current source, which is controlled by a current derived from the output current of the first current mirror in such a way that the supply current of the current mirror corresponds to the varition in the current from the current source caused by the control action.

Loading the Abstract Image...

First Claim