What is Flyback Converter?
The flyback converter is one of the simplest single-ended converters. Unlike the forward circuit, the secondary side of the transformer is connected to the reverse diode. In the Toff, the magnetic current flows in the secondary winding of the transformer, and there is no need to separately provide a demagnetizing winding. The flyback converter is essentially an isolated Buck-Boost converter, and its transformer acts as a transmitting energy element. Therefore, the transformer core should have a large air gap, making the magnetic performance utilization less. It is suitable for low power. The switch tube is subjected to the same voltage as the single-switch forward circuit.