With the continuous development of power technology, high-frequency and high power density switching power supply technology has become the research and development trend, switching power supply transformer is the core component, and with increasing frequency and power, its power supply system increasingly important impact on performance, so high-frequency switching power supply switching power supply transformer design is to achieve development goals.
This paper studies the working principle of high-frequency transformer, function and classification. With the isolation of several commonly used in switching power supply transformer switch roles and work. And design a 30KHZ frequency switching power supply transformers.
Keywords: switching power supply design of high-frequency transformer