基于9833D的24串280mA LED灯驱动电源方案1.原理图
3.PCB文件
4.电感:
A:骨架图EE134+4
立式
176Vac Io(mA)286.0286.7286.8287.0287.3287.7 Vo(v)11010090807060 Pin(w)33.6130.6327.6824.7221.7718.83η93.63%93.57%93.24%92.88%92.37%91.66%
200Vac Io(mA)284.9285.8286.1286.5287287.5 Vo(v)11010090807060 Pin(w)33.4730.5527.6324.7121.7818.84η93.64%93.55%93.16%92.76%92.24%91.56%
220V Io(mA)284.2285.1285.5286286.5287 Vo(v)11010090807060 Pin(w)33.4130.5227.6224.7021.7818.86η93.56%93.41%930.1%92.63%92.06%91.19%
240V Io(mA)283.6284.6285.1285.6286.1286.7 Vo(v)11010090807060 Pin(w)33.3830.5127.6224.7321.8018.89η93.44%9328%92.87%92.40%91.88%91.05%
264Vac Io(mA)282.8283.9284.4284.8285.4286 Vo(v)11010090807060 Pin(w)33.4130.5427.6624.7521.8618.96η93.12%92.96%92.52%92.04%91.40%90.51%
9833D
PCB设计注意事项:
4:为防止断开输入电出现回闪的情况VCC电容需并一放电电阻。
6.测试数据
●短路测试
176V200V220V240V264V 短路功耗0.233W0.274W0.317W0.363W0.420W 短路保护OK。
●
开路保护OK 开路电压22-25V
●常温、高温老化测试
cdna文库
7.测试波形:
●
短路测试波形
VCS波形
76V/50Hz;满载200V:满载wifi智能开关
网络收集
聚酯多元醇220V/50Hz;满载580mV264V/50HZ满载580MV