What is the difference between a switching power supply and a transformer?
For transformers, they are actually devices that can convert voltage. We usually call it a power transformer. But the difference between a switching power transformer and other transformers is that it has an additional switch tube compared to a regular transformer. In this way, a self-excited intermittent oscillator is formed, which can adjust the input DC voltage into high-frequency pulse voltage and output it.
In addition to the above functions, this product also has a more important role, which is the transmission and conversion of energy. In a flyback circuit, when we turn on the switching transistor, the corresponding transformer converts electrical energy into a magnetic field and stores it for processing. When we disconnect the switch tube, the magnetic field will also be converted into electrical energy.
So how is it done in forward circuits? Firstly, when we conduct the switching transistor, the relevant input voltage will be used to directly supply the load, and at the same time, energy will be stored through inductance. Once we disconnect the switch tube, electrical energy will be transferred to the load through the energy storage inductor.
Finally, the switching power transformer can also convert the transmitted DC voltage, allowing it to output various sizes of low voltage. We have finished discussing its function, so what is its classification?
Generally speaking, there are two different types of switching power transformers, namely single excitation and double excitation. The structures of these two classifications are different, and their working principles are also vastly different. Single pulse can input unipolar pulses and also output forward and reverse voltages; The difference between dual pulse and bipolar pulse is that most of them output bipolar pulse voltage.
Through the above text, many friends have gained a certain understanding of transformers. For switch power transformers, it's not just about adding a power switch difference, but also making some of their applications more widespread. In addition, for some specific applications, power transformers with this device can convert voltage as needed, achieving the effect of meeting various types of voltage requirements in the industrial field.
