Voltage repeater circuit with low harmonic distortion for loads with a resistive component

摘要

A voltage repeater circuit with low harmonic distortion for loads with a resistive component has first and second N channel MOSFET transistors and a third P channel MOSFET transistor. The first transistor, whose gate electrode forms an input terminal of the circuit, has its drain electrode connected to the positive terminal of a voltage source via a constant biasing current generator and is coupled, in addition, to the gate electrode of the second transistor by a constant voltage generator and has its source electrode connected to the drain electrode of the second transistor in a circuit node which forms an output terminal of the circuit. The source electrode of the second transistor is connected to the negative terminal of the voltage source. The input terminal of the circuit is also coupled by means of a biasing and amplifying circuit with signal inversion to the gate electrode of the third transistor which has its source electrode connected to the positive terminal of the voltage source and has its drain electrode connected to the output terminal of the circuit.