PI Expert, Power Integrations’ online power supply design program, now features a planar magnetics builder, along with a database of planar cores. With this update, PI Expert can generate an application-specific planar transformer design complete with PCB manufacturer-ready documentation and Gerber files.

The magnetics designer function in PI Expert V2.7 provides full planar transformer information, including stack specification, vertical and horizontal PCB construction, trace parameters, current density information, and layer resistance. The tool automatically incorporates user-specified creepage and clearance distances necessary to meet safety isolation standards.

A comprehensive database of planar cores and components simplifies design and can also accept custom core geometries. PI Expert automatically optimizes the planar transformer design to match the power supply specification, incorporating additional winding layers and adjusting trace geometries as appropriate.

In addition to the planar magnetics builder, PI Expert V2.7 adds support for the company’s entire InnoSwitch3 family of flyback switcher ICs.

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