Introduction:LED lighting driver power supply: LED is a semiconductor device with sensitive characteristics and negative temperature characteristics. Therefore, it needs to be stabilized and protected during the application process, which gives rise to the concept of driver. LED devices have almost harsh requirements for driver power supply. LED is not like ordinary incandescent bulbs that can be directly connected to 220V AC mains. In the field of lighting, LED, as the most critical component of semiconductor lighting, is sought after by the market because of its many benefits, such as energy savings, environmental protection, long life, and being maintenance-free. The driver circuit is an important part of LED (light-emitting diode) products. Whether in the field of lighting, backlight, or display panel, the choice of driver circuit technology architecture should match the specific application.