ABSTRACT
Popularly known as inverters, dc/ac converters deliver power from a dc grid or battery and produce variable-frequency, variable-amplitude ac output. Depending on the circuit topology, inverter output can be single-phase or three-phase, and they can possess either square wave, pulse-width–modulated wave, or stepped wave. Inverters are used extensively with variable-speed ac motors and in induction heating, uninterruptible power supply devices (UPS), active filters, and various applications in power systems. This chapter elaborates different inverter circuits and operations.
