©SHUTTERSTOCK.COM/SPAINTER_VFX Optimizing PCB Layout for HV GaN Power Transistors by Eric Persson P 2329-9207/23©2023IEEE rinted circuit board (PCB) layout has been an integral aspect of power electronic design since the first switching power supplies appeared more than 40 years ago. Regardless of the transistor technology, the parasitic impedances added to the circuit by the PCB layout must be understood and managed for the circuit to function correctly, reliably, and without causing undue electromagnetic interference (EMI). Even though modern wide bandgap (WBG) power semiconductors do not suffer the severe reverse-recovery problems of older silicon (Si) technologies, Digital Object Identifier 10.1109/MPEL.2023.3275311 Date of publication: 27 June 2023 June 2023 z IEEE POWER ELECTRONICS MAGAZINE 65http://www.SHUTTERSTOCK.COM/SPAINTER_VFX