A current-controlled flyback converter

The isolated flyback converter is a commonly-used converter for small power supplies such as battery chargers for portable devices and for auxiliary power supplies in electronic equipment. This example model represents a flyback converter that provides three low-voltage dc output voltages, 5 V, and ±12 V, from a single phase mains source. An inner current control loop controls the peak inductor current and a voltage control loop regulates the output voltage of the 5 V winding using an opamp controller.

Requirements

 PLECS 2.2 or newer
 Matlab 7.0 (R14) or newer

Download

The package file plecs_flyback.zip (218 KB) contains the example model and the documentation in PDF format.