| Summary: | Power electronic converters form an integral and indispensable component of wide
array of systems ranging from electronic devices to electric vehicle, power systems
etc. With rapid technological advancement in electronic devices and appliances there
is a demand for converters with high efficiency and higher power packing density. In
order to increase the power packing density, switching frequency must be increased
which results in reduction of size of the components and hence the improvement in
power packing density. Conventional converters based on PWM still find widespread
use in low and medium-power applications. However, the rectangular waveforms of
PWM cause turn on and turn off losses in these solid-state switches which limit the
operating frequency. Additionally, the rectangular PWM waveforms comprise of wide
spectrum of harmonics and the resulting electromagnetic interference can hamper the
functioning of circuits in the vicinity.
In order to solve the aforementioned problems, resonant converters were developed by
incorporating an auxiliary resonant circuit in the conventional PWM based DC-DC
converters. This thesis intends to present a thorough analysis and design of the ZVS
boost converter by outlining how the integrated resonant circuit enables soft switching
conditions for the switches, while also reducing the overlap of voltage and current. As
a result, switching losses are mitigated.
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