Co-Simulation of a Printed Circuit Board Modeled by a Cauer Ladder Network Approach Combined With GaN Transistors

In order to design efficient power converter operating at high switching frequencies, the electromagnetic behavior of the printed circuit board (PCB) must be well known. Then, numerical approaches can be used to study the voltage and current waveforms as well as the current density distribution associated with a PCB. Considering a half-bridge converter connected to a passive electrical load, we propose a co-simulation based on the Cauer ladder network approach providing an equivalent circuit of the PCB combined with models of GaN transistors. The results from the co-simulation are compared with measurements at 1 MHz with an output power of 200 W.