High Voltage High Frequency Transformer

A high frequency high voltage transformer is an electromagnetic induction device characterized by an operating frequency in excess of 10 kHz and is specifically engineered for step-up voltage conversion from low to high levels. It finds extensive applications across power electronics, computing infrastructure, new energy systems, and automotive electronics. The core materials predominantly consist of ferrite and amorphous alloys. Commonly adopted core configurations include the EE type, PQ type, and nanocrystalline toroidal (ring) type.

The high power density and miniaturization of high-frequency high-voltage transformers are their greatest advantages. By increasing the operating frequency (from 20 kHz to 1 MHz or even higher), the core cross-sectional area and the number of winding turns can be reduced, significantly decreasing the transformer's volume and weight under the same power rating. For example, planar transformer technology, which integrates windings directly onto a PCB, further enables a low-profile and compact design, thereby further reducing product dimensions.