Rectifier A rectifier may be defined as an electronic device, such as a semiconductor diode, used for converting Alternate current voltage or current into unidirectional voltage or current. Classifications of Rectifiers Rectifier circuits are basically of two types depending on the alternating voltage they take as input. They are: (a) Single phase rectifiers (b) Polyphase rectifiers Rectifiers may be classified in to two categories depending upon the period of conduction. They are (a) Half-wave rectifiers (b) Full–wave rectifiers Full wave rectifiers may further be classified in to two categories depending upon nature of the circuit connection. They are (a) Centre tapped full-wave rectifier (b) Bridge full-wave rectifier Half wave rectifier A half wave rectifier circuit is one which conducts current only during the positive half cycles of ...