{"id":2437,"date":"2019-05-16T00:33:08","date_gmt":"2019-05-16T00:33:08","guid":{"rendered":""},"modified":"2019-05-16T08:33:28","modified_gmt":"2019-05-16T00:33:28","slug":"%e5%a6%82%e4%bd%95%e9%87%87%e7%94%a8dacd%e6%96%b9%e6%a1%88%e9%a9%b1%e5%8a%a8led%e7%81%af","status":"publish","type":"post","link":"http:\/\/www.szryc.com\/?p=2437","title":{"rendered":"\u5982\u4f55\u91c7\u7528DACD\u65b9\u6848\u9a71\u52a8LED\u706f"},"content":{"rendered":"

\n\tLED\u6280\u672f\u63a8\u52a8\u4e86\u7167\u660e\u9886\u57df\u7684\u4e00\u573a\u9769\u547d\u3002\u7ed3\u5408\u5c0f\u578b\u3001\u4f4e\u529f\u8017\u3001\u9ad8\u53ef\u9760\u6027\u548c\u4f4e\u6210\u672c\uff0c\u4f7f\u5f97\u7167\u660e\u53ef\u4ee5\u5728\u4e0d\u53ef\u80fd\u7528\u767d\u70bd\u706f\u6216\u8367\u5149\u706f\u6280\u672f\u7684\u5730\u65b9\u5b9e\u65bd\u3002\u56e0\u6b64\uff0cLED\u7167\u660e\u5728\u529e\u516c\u5ba4\u3001\u5bb6\u5ead\u751a\u81f3\u5728\u6211\u4eec\u7684\u8f66\u4e0a\u6fc0\u589e\u3002<\/p>\n

\n\t\u76ee\u524d\u56fa\u6001\u7167\u660e\u65b9\u6848\u7684\u4e3b\u8981\u7f3a\u70b9\u4e0d\u662fLED\u672c\u8eab\uff0c\u800c\u662f\u63d0\u4f9b\u7167\u660e\u80fd\u91cf\u7684\u7535\u6e90\u3002\u8fd9\u4e9b\u5f00\u5173\u7535\u6e90<\/u>\uff08SMPS<\/u>\uff09\u7684\u9884\u671f\u5bff\u547d\u6bd4LED\u77ed\u5f97\u591a\uff0c\u8fd9\u4e3b\u8981\u662f\u56e0\u4e3a\u5b83\u4eec\u6240\u542b\u7684\u78c1\u6027\u5143\u4ef6\u548c\u7535\u89e3\u7535\u5bb9\u5668<\/u>\u7684\u4f7f\u7528\u5bff\u547d\u3002\u6b64\u5916\uff0c\u542b\u6709\u98ce\u6247\u7b49\u6709\u6e90\u51b7\u5374\u8bbe\u5907\u7684\u5f00\u5173\u7535\u6e90\u5c24\u5176\u6613\u53d7\u65e9\u671f\u6545\u969c\u7684\u5f71\u54cd\u3002\u53e6\u4e00\u4e2a\u7f3a\u70b9\u662fSMPS\u901a\u5e38\u4f53\u79ef\u5e9e\u5927\uff0c\u662f\u7535\u78c1\u5e72\u6270\uff08EMI<\/u>\uff09\u7684\u4e3b\u8981\u6765\u6e90\u3002\u8003\u8651\u5230\u5b83\u4eec\u7684\u5c3a\u5bf8\u548c\u901a\u5e38\u6709\u9650\u7684\u7167\u660e\u5b89\u88c5\u7a7a\u95f4\uff0c\u5b83\u4eec\u4e0d\u592a\u53ef\u80fd\u4e0eLED\u5b89\u88c5\u5728\u76f8\u540c\u7684PCB<\/u>\u4e0a\uff0c\u56e0\u6b64\u9700\u8981\u4e92\u8fde\u548c\u5f15\u7ebf\uff0c\u8fd9\u662f\u53e6\u4e00\u4e2a\u6f5c\u5728\u7684\u6545\u969c\u6765\u6e90\u3002<\/p>\n

\n\t <\/div>\n

\n\t\u7136\u800c\uff0c\u7535\u529b\u6280\u672f\u548c\u62d3\u6251\u7684\u6700\u65b0\u8fdb\u5c55\u5305\u62ec\u4ea4\u6d41\u76f4\u63a5\u9a71\u52a8\uff08DAC<\/u>D\uff09\u7535\u6e90\u65b9\u6848\u7684\u51fa\u73b0\u3002\u8fd9\u79cd\u65b0\u7684\u65b9\u6cd5\u5b8c\u5168\u65e0\u9700\u4f20\u7edf\u7684SMPS\uff0c\u5728\u6210\u672c\u3001\u4f53\u79ef\u3001\u4f7f\u7528\u5bff\u547d\u548c\u53ef\u9760\u6027\u65b9\u9762\u63d0\u4f9b\u591a\u79cd\u4f18\u52bf\uff0c\u4f46\u5e76\u4e0d\u662f\u6240\u6709\u7684DACD\u65b9\u6848\u90fd\u662f\u76f8\u540c\u7684\u3002<\/p>\n

\n\tDACD \u62d3\u6251<\/p>\n

\n\t\u6240\u6709DACD\u65b9\u6848\u7684\u5171\u540c\u4e4b\u5904\u662f\u8f93\u5165\u6574\u6d41\u6865<\/u>\uff0c\u4f7f\u7528\u7ecf\u5178\u76844\u4e2a\u4e8c\u6781\u7ba1<\/u>\u914d\u7f6e\uff0c\u5c0650\/60 Hz\u8f93\u5165\u4ea4\u6d41\u6ce2\u5f62\u6821\u6b63\u4e3a100\/120 Hz\u534a\u6b63\u5f26\u6ce2\u3002\u5cf0\u503c\u5e45\u503c\u4ece110 V\u4ea4\u6d41\u8f93\u5165\u7684155 V\u5de6\u53f3\u53d8\u5316\u5230230 V\u4ea4\u6d41\u8f93\u5165\u7684325 V\uff0c\u4f46\u539f\u7406\u4fdd\u6301\u4e0d\u53d8\u3002<\/p>\n

\n\t\u7528\u4e8eLED\u9a71\u52a8\u7684DACD\u62d3\u6251\u901a\u5e38\u5206\u4e3a\u4e24\u79cd\u914d\u7f6e\uff0c\u6bcf\u4e00\u79cd\u90fd\u5404\u6709\u4f18\u7f3a\u70b9\u3002<\/p>\n

\n\t\u8fd9\u4e24\u79cd\u65b9\u6cd5\u90fd\u652f\u6301\u91c7\u7528\u5355\u677f\u65b9\u6848\uff0c\u800c\u4e0d\u662fSMPS\u65b9\u6848\u6240\u9700\u7684\u53cc\u677f\u65b9\u6848\u3002\u5206\u6d41\u578bDACD\u91c7\u7528\u5355\u7247\u96c6\u6210\u7535\u8def<\/u>\uff0c\u964d\u4f4e\u4e86\u7269\u6599<\/u>\u5355\uff08BOM\uff09\u6210\u672c\u3002\u5b83\u8fd8\u5177\u6709\u6613\u4e8e\u6269\u5c55\u7684\u4f18\u70b9\uff0c\u4f46\u6563\u70ed\u6027\u80fd\u76f8\u5bf9\u8f83\u5dee\u3002<\/p>\n

\n\t\u76f8\u6bd4\u4e4b\u4e0b\uff0c\u65c1\u8def\u7c7b\u578b\u503e\u5411\u4e8e\u4f7f\u7528\u591a\u4e2a\u96c6\u6210\u7535\u8def\uff0c\u56e0\u800c\u5bfc\u81f4\u66f4\u9ad8\u7684BOM\u6210\u672c\u3002\u800c\u8fd9\u79cd\u65b9\u6cd5\u66f4\u9002\u5408\u4e8e\u9700\u8981\u8bb8\u591aLED\u4e32\u7684\u5e94\u7528\u3002\u4e0e\u5206\u6d41\u6cd5\u76f8\u6bd4\uff0c\u867d\u7136\u6269\u5c55\u6027\u6709\u9650\uff0c\u4f46\u7535\u6c14\u6027\u80fd<\/u>\u66f4\u597d\uff0c\u603b\u8c10\u6ce2\u5931\u771f\uff08THD\uff09\u901a\u5e38\u5c0f\u4e8e10%\uff0c\u800c\u5206\u6d41\u6cd5\u4e3a30%\u5de6\u53f3\u3002<\/p>\n

\n\t\u867d\u7136\u4e0e\u4f20\u7edf\u7684\u5f00\u5173\u7535\u6e90\u6cd5\u76f8\u6bd4\uff0c\u8fd9\u4e9bDACD\u6cd5\u662f\u4e2a\u663e\u8457\u8fdb\u6b65\uff0c\u4f46\u5b83\u4eec\u5e76\u4e0d\u662f\u9a71\u52a8\u57fa\u4e8eLED\u7684\u73b0\u4ee3\u5e94\u7528\u7684\u5b8c\u5168\u7406\u60f3\u7684\u65b9\u6848\u3002\u76ee\u524d\u5e02\u573a\u4e0a\u6709\u8bb8\u591a\u57fa\u4e8eIC\u7684DACD\u65b9\u6848\uff0c\u4f46\u8fd9\u4e9b\u65b9\u6848\u5728\u7a33\u538b\u3001\u6563\u70ed\u6027\u80fd\u3001\u8010\u6d6a\u6d8c\u6027\u80fd\u3001\u8c03\u5149\u80fd\u529b\u548c\u6210\u672c\u65b9\u9762\u90fd\u53ef\u6539\u8fdb\u3002<\/p>\n

\n\t\u5f53\u4ea4\u6d41\u7ebf\u8def\u7535\u538b\u901a\u8fc7\u534a\u6b63\u5f26\u65f6\uff0cIC\u5185\u7684\u5f00\u5173\u6307\u793a\u7535\u6d41<\/u>\uff08ILEDn\uff09\u7167\u4eae\u6bcf\u4e2aLED\u3002\u4f46\u8fd9\u79cd\u7ebf\u6027\u5f00\u5173\u6cd5\u6709\u4e00\u4e2a\u4e3b\u8981\u7684\u7f3a\u70b9\uff0c\u5373\u9ad8THD\u3002<\/span><\/p>\n

\n\t\u6700\u65b0\u7684\u597d\u65b9\u6cd5<\/p>\n

\n\t\u6700\u65b0\u7684DACD\u65b9\u6848\u4e4b\u4e00\u662f\u5b89\u68ee\u7f8e<\/u>\u534a\u5bfc\u4f53\u7684NCL30170\u3002\u57fa\u4e8e\u5206\u6d41\u62d3\u6251\uff0c\u5b83\u63d0\u4f9b\u4e86\u524d\u8ff0\u7684\u8fd9\u79cd\u65b9\u6cd5\u7684\u6240\u6709\u4f18\u70b9\uff0c\u5305\u62ec\uff1a\u662f\u5355\u4e2aIC\u65b9\u6848\uff0c\u5177\u6709\u8f83\u4f4e\u7684BOM\u6210\u672c\u548c\u6613\u4e8e\u6269\u5c55\u529f\u7387\u3002\u4f46\u8fd9\u79cd\u65b0\u65b9\u6848\u7684\u4e00\u4e2a\u72ec\u7279\u7279\u6027\u662f\u80fd\u591f\u9a71\u52a8\u591a\u4e2a\u5916\u90e8MOSFET<\/u>\u5f00\u5173\uff0c\u4ece\u800c\u652f\u6301\u8fde\u63a5\u591a\u4e2aLED\u4e32\uff1bNCL30170\u662f\u5e02\u573a\u4e0a\u9996\u4e2a\u80fd\u591f\u8fd9\u6837\u505a\u7684\u4ea7\u54c1\u3002\u56e0\u6b64\uff0c\u529f\u7387\u53ef\u4ece10W\u6269\u5c55\u5230200W\uff0c\u8fde\u63a5\u7684LED\u4e32\u7684\u603b\u6570\u548c\u5916\u90e8\u5f00\u5173\u4ec5\u53d7\u6700\u9ad8\u529f\u7387\u6c34\u5e73\u7684\u9650\u5236\u3002<\/p>\n

\n\t\"\u5982\u4f55\u91c7\u7528DACD\u65b9\u6848\u9a71\u52a8LED\u706f\"<\/p>\n

\n\tNCL30170\u662f\u5355\u8f93\u51fa\u3001\u591a\u4e32\u3001\u5206\u6d41DACD\u65b9\u6848<\/p>\n

\n\t\u5728\u5927\u591a\u6570\u5e94\u7528\u4e2d\uff0c\u5c3d\u7ba1\u7535\u6e90\u7535\u538b\u6ce2\u52a8\uff0c\u4f46LED\u4eae\u5ea6\u4fdd\u6301\u4e0d\u53d8\u662f\u5f88\u91cd\u8981\u7684\u3002\u901a\u5e38\uff0cDACD\u9a71\u52a8\u5668\u80fd\u591f\u5b9e\u73b0±10%\u7684\u7a33\u538b-\u5b89\u68ee\u7f8e\u534a\u5bfc\u4f53\u7684\u65b0\u5668\u4ef6\u8fbe\u5230±1%\uff0c\u8fd9\u662f\u975e\u5e38\u663e\u8457\u7684\u63d0\u5347\uff0c\u4ece\u800c\u786e\u4fdd\u8fde\u63a5LED\u7684\u6301\u7eed\u5149\u8f93\u51fa\u3002<\/p>\n

\n\tNCL30170\u7528\u4e00\u79cd\u4e13\u6709\u7684\u65b9\u6cd5\u6765\u8c03\u8282\u7535\u6d41\uff0c\u800c\u4e0d\u662f\u7528\u4e8e\u4f20\u7edfDACD\u65b9\u6848\u7684\u7ebf\u6027\u65b9\u6cd5\u3002\u7535\u538b\u89e6\u53d1\u70b9\u4fdd\u6301\u4e0d\u53d8\uff0c\u4f46\u4ee5\u8fd9\u6837\u4e00\u79cd\u65b9\u5f0f\u8c03\u8282\u7535\u6d41\u4f7f\u5176\u4e0d\u518d\u662f\u4e00\u4e2a\u9636\u68af\u5f62\u72b6\uff0c\u4ece\u800c\u4ea7\u751f\u5e73\u6ed1\u7684\u6b63\u5f26\u6ce2\u7535\u6d41\uff08\u5982\u56fe4\u53f3\u56fe\u6240\u793a\uff09\uff0c\u5bfc\u81f4\u4f4e\u4e8e10%\u7684\u6781\u4f73\u7684THD\u6c34\u5e73\u3002<\/p>\n

\n\t• \u4f20\u7edf\u7684\u5206\u6d41\u7c7b\u578b<\/p>\n

\n\t• \u9636\u68af\u5f0f\u7684\u8f93\u5165\u7535\u6d41<\/p>\n

\n\t• \u6b63\u5f26\u8f93\u5165\u7535\u6d41<\/p>\n

\n\t\u9664\u4e86\u6781\u4f73\u7684THD\uff0cNCL30170\u8fd8\u63d0\u4f9b\u9886\u5148\u884c\u4e1a\u7684\u529f\u7387\u56e0\u6570\u6821\u6b63\uff08PFC<\/u>\uff09\u6027\u80fd\uff0c\u8d85\u8fc70.98\u3002<\/p>\n

\n\t\u6709\u6548\u8c03\u5149\u7684\u91cd\u8981\u6027<\/p>\n

\n\t\u5728\u8bb8\u591a\u5e94\u7528\u4e2d\uff0c\u80fd\u8fdb\u884cLED\u8c03\u5149\u5f88\u91cd\u8981\uff0c\u53ef\u901a\u8fc7\u8109\u5bbd\u8c03\u5236\uff08PWM\uff09\u6280\u672f\uff08\u901a\u5e38\u79f0\u4e3a\u5207\u76f8\uff09\u6216\u6a21\u62df\u63a7\u5236\u6765\u5b9e\u73b0\u3002PWM\u63d0\u4f9b\u5bbd\u8303\u56f4\u7684\u8c03\u5149\u80fd\u529b\uff0c\u4f46\u4e5f\u6709\u660e\u663e\u7684\u7f3a\u70b9\uff0c\u5305\u62ec\u95ea\u70c1\uff0c\u8fd9\u5df2\u88ab\u8bc1\u660e\u4f1a\u5bfc\u81f4\u5904\u4e8e\u8fd9\u79cd\u89c6\u7ebf\u73af\u5883\u7684\u4eba\u5934\u75db\u3002\u9ad8\u7535\u5e73\u7684PWM\u8c03\u5149\u4e5f\u4f1a\u5bfc\u81f4\u5ba4\u5185\u5e94\u7528\u4e2d\u5c24\u5176\u4e0d\u53d7\u6b22\u8fce\u7684\u53ef\u95fb\u566a\u58f0\u3002<\/p>\n

\n\t\u867d\u7136\u8bb8\u591aDACD\u65b9\u6848\u53ef\u8c03\u4f4e\u523010%\uff0cNCL30170\u80fd\u591f\u63d0\u4f9b5%\u7684\u6a21\u62df\u8c03\u5149\uff0c\u4ece\u800c\u6ee1\u8db3\u5177\u6709\u6311\u6218\u6027\u7684\u73b0\u4ee3\u5e94\u7528\u7684\u9700\u8981\u3002\u8be5\u5668\u4ef6\u5728\u6574\u4e2a\u8c03\u5149\u8303\u56f4\u5185\u4fdd\u6301\u7a33\u538b\uff0c\u4ece\u800c\u786e\u4fdd\u5373\u4f7f\u5728\u4f4e\u529f\u7387\u4e0b\uff0c\u4eceLED\u53d1\u51fa\u7684\u5149\u4ecd\u7136\u4fdd\u6301\u4e0d\u53d8\u3002<\/p>\n

\n\t\u5bf9\u4e8e\u4f7f\u7528TRIAC\u7684\u5207\u76f8\u8c03\u5149\uff0cNCL30170\u5f3a\u5927\u7684PWM\u6027\u80fd\u786e\u4fdd\u57fa\u4e8e\u5b83\u7684\u7167\u660e\u65b9\u6848\u975e\u5e38\u9002\u5408\u4e8e\u6539\u88c5\u5e94\u7528\u3002<\/p>\n

\n\t\u603b\u7ed3<\/p>\n

\n\tLED\u7167\u660e\u5728\u5f53\u4eca\u7167\u660e\u65b9\u6848\u4e2d\u5360\u5f88\u5927\u6bd4\u4f8b\u3002\u7531\u4e8e\u73b0\u4ee3\u5e94\u7528\u7684\u4f4e\u529f\u8017\u3001\u4f4e\u6210\u672c\u548c\u5c0f\u5c3a\u5bf8\u8981\u6c42\uff0c\u8fd9\u6bd4\u4f8b\u5c06\u589e\u957f\uff1b\u7528\u66f4\u52a0\u7075\u6d3b\u548c\u901a\u7528\u7684LED\u7167\u660e\u6539\u88c5\u65e7\u7684\u767d\u70bd\u706f\u88c5\u7f6e\u4e5f\u5c06\u662f\u672a\u6765\u589e\u957f\u7684\u91cd\u8981\u63a8\u52a8\u529b\u3002<\/p>\n

\n\t\u76f4\u5230\u6700\u8fd1\uff0cSMPS\u4e00\u76f4\u88ab\u7528\u4e8e\u4e3aLED\u88c5\u7f6e\u4f9b\u7535\uff0c\u4f46\u5b58\u5728\u8010\u7528\u6027\u548c\u4f7f\u7528\u5bff\u547d\u7684\u95ee\u9898\uff0c\u800c\u4e14\u4f53\u79ef\u5e9e\u5927\uff0c\u4f7f\u5728\u53d7\u9650\u7a7a\u95f4\u5b89\u88c5LED\u65b9\u6848\u53d8\u5f97\u590d\u6742\u548c\u53d7\u9650\u3002<\/p>\n

\n\t\u6700\u8fd1\uff0cDACD\u5df2\u6210\u4e3a\u4e00\u79cd\u4e3aLED\u4e32\u4f9b\u7535\u7684\u53ef\u884c\u6280\u672f\u3002\u8fd9\u9879\u6280\u672f\u89e3\u51b3\u4e86SMPS\u7684\u8bb8\u591a\u7f3a\u70b9\uff0c\u7279\u522b\u662f\u8010\u7528\u6027\u548c\u4f7f\u7528\u5bff\u547d\u3001\u5927\u5c0f\u548c\u6210\u672c\uff0c\u4e14\u672a\u6765\u5c06\u5927\u5927\u4fc3\u8fdb\u66f4\u591a\u7684LED\u7167\u660e\u88c5\u7f6e\u3002\u73b0\u5728\uff0c\u5982\u5b89\u68ee\u7f8e\u534a\u5bfc\u4f53\u7684NCL30170\u8fd9\u6837\u7684\u5668\u4ef6\u6709\u52a9\u4e8e\u4ea4\u6d41\u76f4\u63a5\u6280\u672f\u63d0\u4f9b\u5e94\u7528\u6240\u9700\u7684\u6027\u80fd\u3001\u7075\u6d3b\u6027\u548c\u8010\u7528\u6027\uff0c\u7528\u4e8e\u8bb8\u591a\u7ec8\u7aef\u5e02\u573a\u9886\u57df\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

LED\u6280\u672f\u63a8\u52a8\u4e86\u7167\u660e\u9886\u57df\u7684\u4e00\u573a\u9769\u547d\u3002\u7ed3\u5408\u5c0f\u578b\u3001\u4f4e\u529f\u8017\u3001\u9ad8\u53ef\u9760\u6027\u548c\u4f4e\u6210\u672c\uff0c\u4f7f\u5f97\u7167\u660e\u53ef\u4ee5\u5728\u4e0d\u53ef\u80fd\u7528\u767d\u70bd\u706f\u6216\u8367\u5149\u706f\u6280\u672f\u7684\u5730\u65b9\u5b9e\u65bd\u3002\u56e0\u6b64\uff0cLED\u7167\u660e\u5728\u529e\u516c\u5ba4\u3001\u5bb6\u5ead\u751a\u81f3\u5728\u6211\u4eec\u7684\u8f66\u4e0a<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[14],"tags":[],"_links":{"self":[{"href":"http:\/\/www.szryc.com\/index.php?rest_route=\/wp\/v2\/posts\/2437"}],"collection":[{"href":"http:\/\/www.szryc.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.szryc.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.szryc.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.szryc.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2437"}],"version-history":[{"count":0,"href":"http:\/\/www.szryc.com\/index.php?rest_route=\/wp\/v2\/posts\/2437\/revisions"}],"wp:attachment":[{"href":"http:\/\/www.szryc.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2437"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.szryc.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2437"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.szryc.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2437"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}