Heat Dissipation Design of High Power LED Headlamp

Abstract

High brightness white light emitting diodes(LEDs) are very promising in many new illumination applications. This paper is to investigate the cooling solutions of a LED heallamp. Air cooling with heat sink were proved to be unsuitable. A cooling method based on heat pipe is adopted which is proved to be effective. Simulations were performed with Flotherm software to investigate the thermal permance.A sample of LED headlamp is fabricated based on the structure of a certain sedan combined headlamp. The testing results are in accordance with the simulation results

Design of Automobile Brake Lamp Fault Automatic Detection Circuit

“…Therefore, it is required to develop a brake lamp fault automatic detection circuit, real-time monitoring of the brake light is good or bad condition, once the brake lamp does not work, alarm automatic light tip the driver timely maintenance, so that you can reduce due to brake light failure as a result of the automobile traffic accident [4].…”