In automotive applications, LEDs are mainly used for ex […]
In automotive applications, LEDs are mainly used for exterior and interior lighting. External lighting equipment involves thermal limits and EMC issues, as well as many complex standards for unloading load testing. For example, whether the voltage drive circuit of a 40V, 60V, 80V, or 100V LED must meet the strict requirements of automotive EMC specifications. For LEDs driven by high-efficiency, inductive switching regulators, it is difficult to meet the above requirements, and all precautions will increase the cost of the overall solution. In the field of external lighting applications, headlights, fog lights and indicators are targeted applications.