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Figure: 5.10 Single phase Full Bridge DC-AC inverter with L load
The above topology is analyzed under the assumption of ideal circuit conditions. Accordingly, it is
assumed that the input dc voltage (Edc) is constant and the switches are lossless. In full bridge topology
has two such legs. Each leg of the inverter consists of two series connected
electronic switches shown
within dotted lines in the figures. Each of these switches consists of an IGBT type controlled switch
across which an uncontrolled diode is put in anti-parallel manner. These
switches are capable of
conducting bi-directional current but they need to block only one polarity of voltage. The junction point
of the switches in each leg of the inverter serves as one output point for the load.
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