InnoSwitch3 devices combine a high-voltage power MOSFET / PowiGaN switch, with both primary-side and secondary-side controllers, an innovative high-speed magneto-coupling communications technology and a synchronous rectification driver into one isolated, safety-rated device.

This application note is intended for engineers designing an isolated AC-DC flyback power supply or charger using the InnoSwitch3 family of devices. It provides guidelines to enable an engineer to quickly select key components and also complete a suitable transformer design.

To help simplify the task, this application note refers directly to the PIXls designer spreadsheet that is part of the PI Expert design software.