Design Of LED Lighting Driver Circuit

With the development of economy, needs' for applications of LED increase dramatically and it is used widely in telecom,mail,finance,traffic and other industries. Drive circuit is necessary for application of LED, because driven circuit provides good and stable current to make display of LED suitable for many applications.Based on actual development of LED, the paper chooses right LED as experimental object, presented the characteristics of LED lighting and LED optical characteristic parameters. No matter what type power, it can't supply power to circuit. Thus, we are driven on lighting circuit, over temperature protection circuit to sum up the system and is based on the chip MAX5033,MBI1801 utility designed a lighting drive circuit, from the perspective of the experiment demonstrated that the LED light source to replace the traditional incandescent light source of the feasibility of and necessity. Take into account various factors, as well as with the actual measurement results were compared to the final result is practical.The theory of chip-chip data analysis and testing, in a typical case, The accuracy of current control circuit relative error and matching accuracy relative error can be controlled less than 0.5 percent in the lighting brightness to meet the design requirements, and reached the intended target. Similar design and compared the lights, the lights are cost-effective, practical advantages.