ABSTRACT

The increasing electrical power demands in advanced cars are for improving the engine performance, passenger comforts, and safety. In automobiles, the electrical and electronic accessories are supported by the battery. The voltage source inverters are the most common power electronics converters. The direct current (DC) input voltage for a voltage source inverter can be obtained from a rectifier, usually of the uncontrolled, diode type, or from another DC source, such as a battery, fuel cell, or solar photovoltaic array. The inverters are built by number of switches depending on the performance and its application. The objective of the inverter is to use a DC voltage source to supply a load that requires alternating current (AC) voltage and current. The DC to AC power conversion is realized by inverters. The basic principles of DC-to-AC power conversion using power electronics inverter are explained. The different types of converter topologies are described with their operating modes.