What is a switching power transformer

When you think about switching power supplies, you think about traditional linear power supplies. In fact, now the switching power supply is very modern, and its safety performance is guaranteed. When we buy switching power transformer, mainly depends on its quality and model. Next, let's look at the switching power transformer model.

What is a switching power transformer

Switching power transformer is a power transformer added to the switching tube, in addition to the voltage transformation function of ordinary transformers in the circuit, but also both insulation isolation and power transfer function is generally used in switching power supply and other occasions involving high-frequency circuits. The switching power transformer and the switching tube together constitute a self-excited (or other excited) type of intermittent oscillator, so as to adjust the input DC voltage into a high-frequency pulse voltage. Play the role of energy transfer and conversion.

In flyBACK circuits, when the switch is on, the transformer converts the electrical energy into a magnetic field, which is stored and released when the switch is cutoff. In a forward circuit, when the switch is on, the input voltage is supplied directly to the load and the energy is stored in the energy storage inductor. When the switch tube is cut off, the energy storage inductor carries on the continuous flow to the load.