November 2016
Intermediate to advanced
1008 pages
27h 59m
English
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6.1. Single-Phase Half-Bridge Inverter
Fig. 6.2 shows the power circuit and the generated output voltage of a single-phase half-bridge inverter. The choice of the semiconductor switches for implementing this inverter depends on its power and switching requirements. The freewheeling diodes across the switches are included in the same power module as the switches. As shown in Fig. 6.2(d) the output voltage vo is a two-level square-wave pulse (Vin/2 and −Vin/2). When S1 or D1 is conducting, the output voltage is vo = Vin/2. When S2 or D2 is conducting, the output voltage is vo = −Vin/2. The output voltage control can be achieved by varying the pulse widths of the output voltage through the gating signals of the semiconductor switches. When an increase ...
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