摘要：Electronic load can be used to test thecharacteristics of LED driver in the field conditions. In thiswork, a new electronic load for LED driver is designed, whichcould simulate the nonlinear volt-ampere characteristics ofLED module. In order to study the real-time controlperformance of the system when setting the working current, aPID controller and a fuzzy-PID controller were designed basedon the flexible online programming and control of LabVIEWsoftware. At the same time, the mathematical model of theelectronic load is calculated based on the theoreticalvolt-ampere characteristic curve of the LED module. Theresults show that the combination of fuzzy logic and PIDcontrol can make the design of the new electronic load getbetter control effect and meet the needs of practicalapplication.
关键词：LED driver; electronic load; PID control;
fuzzy-PID control; current control
