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

The 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 L/sub s/ on the rating of the components dominates, and their performance is significantly different. The difference is a function of the operating frequency and is more pronounced at higher frequencies. To study the behavior of the inverters at higher frequencies, a detailed analysis is presented which includes the effect of the di/dt inductance. The performance of the two inverters is compared in terms of the inverter kVA rating, and the kVA rating of the compensating capacitor.<>