HIGH FREQUENCY ZERO VOLTAGE SWITCHING RESONANT POWER INVERTER WITH EXTENDED LINE AND LOAD RANGE

摘要

HIGH FREQUENCY ZERO VOLTAGE SWITCHING RESONANT POWER INVERTER WITH EXTENDED LINE AND LOAD RANGE A power inverter efficiency is optimized at high frequency in a fully resonant inverter operating with a range of load impedance that takes into consideration switching loss and conducting loss as a combined overall effect. Within this range of load impedance the inverter is constrained to operate with switching loss which is generally considered unacceptable in a conventional high frequency high efficiency power inverter, but the overall combined high efficiency of the disclosed power inverter has a wider range of load impedances than has been previously achieved in such a resonant power inverter. Non-linear capacitance across switching the device is positively utilized in achieving this goal.