Operation and design of resonant converters, snubbers, and gate-drive circuits:
• Analysis of operation modes of different resonant converters
• Limitations in duty ratio, voltage and current for soft switching
• Methods of control for resonant converters
• Effects of non-idealities of resonant converters
• Energy loss minimization using resonant transitions and relation to sustainability
• Analysis of operation of different snubber circuits
• Electric stress and losses depending on parameter choices for snubbers
• Effects of parasitic elements of snubber circuits
• Good practices when designing gate-drive circuits
• Power device protection in gate-drive circuits
• Good practices for circuit layouts
After completion of the course the student shall be able to:
• explain how different resonant converters operate
• explain limitations of different resonant converters
• explain the basic operation of different snubber circuits
• explain how design choices of snubbers affect losses and electric stresses
• explain how different gate-drive circuits operate
• explain basic concepts of good circuit layouts
• calculate peak values of voltages and currents of different resonant converters
• calculate limits in duty ratios, min/max values of voltages/currents for soft-switching
• calculate values of passive components of snubbers
• calculate transient voltages and currents for power devices with snubbers
• calculate suitable values of impedances in gate loops
• describe characteristics of different resonant converters
• describe how parameter choices of resonant converters influence the operation
• describe how resonant converters can increase sustainability
• describe in what way parasitic elements of snubbers influence the effectiveness of the snubber
• describe how gate-drive circuits can withstand high levels of electromagnetic noise
• describe how power devices can be protected from the gate-drive circuit