A performance comparison of full- and half-bridge series resonant inverters in high-frequency high-power applications

Load-commutated full- and half-bridge series resonant inverters are dual at lower operating frequencies where the di/dt inductance L/sub s/ has negligible effect on their performance. At higher frequencies, however, the effect of inductor L/sub s/ dominates the ratings of components, and their performance is significantly different. The difference in their performance is a function of the operating frequency and is more pronounced at higher frequencies. To study the behavior of inverters at higher frequencies, a detailed analysis is presented which includes the effect of the di/dt inductance. Finally, the performance of two inverters is compared in terms of inverter kVA rating, and the kVA rating of the compensating capacitor.<>