LED power supplies are now widely used in our daily lives. Due to the lack of light delay effect, the fluctuation of output current will cause changes in the brightness of the light, which is commonly known as flicker. In order to achieve more stable output light, a flicker free circuit was added on the basis of using a stable voltage source, and the output characteristics of MOSFET were further utilized to filter the current and achieve a flicker free light source.

The Super Junction series products have faster switching speed, lower conduction loss, and extremely low gate charge (Qg), thereby reducing device power loss and improving system efficiency. At the same time, it has characteristics such as high avalanche tolerance and high surge capacity, providing a smaller output ripple and more stable power supply for the front stage; The linear operating characteristics of Normal Trench MOSFET are stable, and the amplitude of the linear operating current change is small. Further filtering achieves the characteristic of no flicker of the output light source.