天津工业大学学报
天津工業大學學報
천진공업대학학보
Journal of Tianjin Polytechnic University
2015年
5期
85-88
,共4页
LED驱动%PWM%调光%占空比%隔离
LED驅動%PWM%調光%佔空比%隔離
LED구동%PWM%조광%점공비%격리
LED driver%PWM%dimming%duty cycle%isolation
设计一种基于SSL2129AT的PWM占空比控制驱动电源输出电流大小的隔离式电路，电路设计需求输入电压为交流90~265 V，输出电压80 V，输出电流400 mA，调光范围2%~100%，效率高于85%，PF值高于0.9，在该要求下提出了详细的调光控制电路的设计与实现方案，给出了设计参数和测试结果，通过测试结果验证了所给出设计方案的可行性.
設計一種基于SSL2129AT的PWM佔空比控製驅動電源輸齣電流大小的隔離式電路，電路設計需求輸入電壓為交流90~265 V，輸齣電壓80 V，輸齣電流400 mA，調光範圍2%~100%，效率高于85%，PF值高于0.9，在該要求下提齣瞭詳細的調光控製電路的設計與實現方案，給齣瞭設計參數和測試結果，通過測試結果驗證瞭所給齣設計方案的可行性.
설계일충기우SSL2129AT적PWM점공비공제구동전원수출전류대소적격리식전로，전로설계수구수입전압위교류90~265 V，수출전압80 V，수출전류400 mA，조광범위2%~100%，효솔고우85%，PF치고우0.9，재해요구하제출료상세적조광공제전로적설계여실현방안，급출료설계삼수화측시결과，통과측시결과험증료소급출설계방안적가행성.
An isolation LED driver circuit based on SSL2129AT by PWM control is presented, the design of the dimming circuit is introduced in detail, the experimental parameters and test results are given. The isolation LED driver circuit is designed to meet the following requirements:input voltage of 90-265 V, output voltage 80 V,output current 400 mA,the dimming range of 2%-100%,the efficiency higher than 85%,PF value higher than 0.9. The results of the experiments verify the feasibility of the given design scheme which has promising application prospects in the field of domestic LED lamps.
