How to choose the power of ring transformer How to judge the quality of switching power transformer

The switch power supply circuit transformer is a switch power supply transformer with a switch tube. In the power supply circuit, in addition to the working voltage conversion function of the general transformer, it also takes into account the insulation layer protection and output power transmission function. It is generally used in the switch power supply circuit and other fields involving high-frequency circuits.

The switch power circuit transformer and the switch tube together form a self-excited oscillation (or other excitation) type intermittent oscillator, and then the input AC voltage is allocated into a high-frequency single-pulse working voltage. It has the effect of kinetic energy transmission and transformation. In the flyback power supply circuit, when the switch tube is on or off, the transformer converts the electromagnetic energy into magnetic energy for storage, and releases it when the switch tube is off. In the forward power supply circuit, when the switch tube is turned on and off, the input working voltage immediately supplies the load and stores the kinetic energy in the energy storage technology inductor. When the switch tube is cut off, the continuous flow load transmission is carried out by the energy storage technology inductor. Converts the input AC voltage into various required bottom voltages.

The basic composition of switching power supply circuit transformer is as follows:

The key raw materials of switching power supply circuit transformer: permanent magnet materials, transmission line raw materials and insulating layer materials are the key of switching power supply transformer.