Advanced DC/AC Inverters

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Pulse Width-Modulated DC/AC Inverters

DC/AC inverters are quickly developed with knowledge of the power switching circuits applied in industrial applications in comparison with other power switching circuits. In the past century, plenty of topologies of DC/AC inverters have been created. DC/AC inverters are mainly used in AC motor adjustable speed drives (ASDs), as shown in Figure 2.1. Power DC/AC inverters have been widely used in other industrial applications since the late 1980s. Semiconductor manufacture development allowed high-power devices such as IGBTs and MOSFETs to operate at higher switching frequencies (e.g., from tens of kHz up to a few MHz). Conversely, some devices such as thyristors (SCRs), GTOs, triacs, and BTs, with lower ...