Requirements for switching power supply transformer

Requirements for switching power supply transformers   The requirements for the transformer in the switching power supply are mainly that the leakage induction should be small, which can avoid transient saturation, and at the same time, the temperature effect should be considered and the structural design should be reasonable. The requirements of these aspects are expanded: Reducing leakage is very important for switching transformers - voltage spikes caused by switching transformer leakage energy storage are one of the reasons for power switch tube damage. The size of the voltage peak when the power switching tube is turned off is related to the configuration of the collector circuit, the circuit turn-off condition and the size of the leakage induction, which requires the leakage induction of the switching transformer must be relatively small. If the working magnetic flux density selection is large, the switching transformer will occur magnetic saturation at the moment of powe…