Potential transformer or PT can have the same construction as any normal transformer. It has primary & secondary winding. The number of turns in primary windings is greater than the number of turns in the secondary winding because it is a step-down transformer.

In many electronic application scenarios, people will use various types of transformers, whether it is a high-frequency transformer or a low-frequency transformer, the manufacturing process is similar. Next, Zou Gong, a senior design engineer from Shenzhen Yingzhe Technology Co., Ltd., will introduce the general production process of transformers.

The high frequency transformer is the most important part of the switching power supply. The switching power supply generally uses a half-bridge power conversion circuit. When working, two switching transistors are turned on in turn to generate a 100kHz high-frequency pulse wave, and then the high-frequency transformer is used to step down and output low-voltage alternating current.