Half Wave Rectifier Circuit Diagram For conversion of the half waveform of AC supply into DC, a half wave rectifier circuit employs only one, one-way switch like Diode, SCR MOSFET etc. (one-way switch means, an electronic device that allow the conduction of current in one direction only) In this circuit, this one-way switch is connected in such a way it only conducts for the desired half of the AC input supply. The given figure below shows the circuit diagram of half wave rectifier . In this ... A Half-wave rectifier is an electronic device that is used to convert Alternating current (AC) to Direct current (DC) . A half-wave rectifier allows either a positive or negative half-cycle of AC to pass and blocks the other half-cycle. What is a Half Wave Rectifier? A half wave rectifier is defined as a type of rectifier that only allows one half- cycle of an AC voltage waveform to pass, blocking the other half-cycle. Half-wave rectifiers are used to convert AC voltage to DC voltage, and only require a single diode to construct. Learn how a half wave rectifier transforms AC voltage to DC voltage using only one diode. Find out the ripple factor, efficiency, form factor and applications of half wave rectifier with examples and diagrams.