{"id":169,"date":"2016-05-02T07:05:52","date_gmt":"2016-05-02T07:05:52","guid":{"rendered":""},"modified":"2016-05-02T15:06:05","modified_gmt":"2016-05-02T07:06:05","slug":"led%e9%a9%b1%e5%8a%a8%e8%ae%be%e8%ae%a1%e7%9a%845%e5%a4%a7%e5%85%b3%e9%94%ae","status":"publish","type":"post","link":"http:\/\/www.szryc.com\/?p=169","title":{"rendered":"LED\u9a71\u52a8\u8bbe\u8ba1\u76845\u5927\u5173\u952e"},"content":{"rendered":"

\n\t   \u8981\u666e\u53caLED\u706f\u5177<\/font>\uff0c\u4e0d\u4f46\u9700\u8981\u5927\u5e45\u5ea6\u964d\u4f4e\u6210\u672c\uff0c\u66f4\u9700\u8981\u89e3\u51b3\u6280\u672f\u6027\u7684\u95ee\u9898\u3002\u5982\u4f55\u89e3\u51b3\u80fd\u6548\u548c\u53ef\u9760\u6027\u8fd9\u4e9b\u96be\u9898\uff0cPowerIntegrations\u5e02\u573a\u8425\u9500\u526f\u603b\u88c1DougBailey\u5206\u4eab\u4e86\u9ad8\u6548\u9ad8\u53ef\u9760LED\u9a71\u52a8<\/font>\u8bbe\u8ba1\u7684\u5fc3\u5f97\u3002<\/p>\n

\n\t    \u4e00\u3001\u4e0d\u8981\u4f7f\u7528\u53cc\u6781\u578b\u529f\u7387\u5668\u4ef6<\/strong><\/p>\n

\n\t    DougBailey\u6307\u51fa\u7531\u4e8e\u53cc\u6781\u578b\u529f\u7387\u5668\u4ef6\u6bd4MOSFET\u4fbf\u5b9c\uff0c\u4e00\u822c\u662f2\u7f8e\u5206\u5de6\u53f3\u4e00\u4e2a\uff0c\u6240\u4ee5\u4e00\u4e9b\u8bbe\u8ba1\u5e08\u4e3a\u4e86\u964d\u4f4eLED<\/font>\u9a71\u52a8\u6210\u672c\u800c\u4f7f\u7528\u53cc\u6781\u578b\u529f\u7387\u5668\u4ef6\uff0c\u8fd9\u6837\u4f1a\u4e25\u91cd\u5f71\u54cd\u7535\u8def\u7684\u53ef\u9760\u6027\uff0c\u56e0\u4e3a\u968f\u7740LED\u9a71\u52a8\u7535\u8def\u677f\u6e29\u5ea6\u7684\u63d0\u5347\uff0c\u53cc\u6781\u578b\u5668\u4ef6\u7684\u6709\u6548\u5de5\u4f5c\u8303\u56f4\u4f1a\u8fc5\u901f\u7f29\u5c0f\uff0c\u8fd9\u6837\u4f1a\u5bfc\u81f4\u5668\u4ef6\u5728\u6e29\u5ea6\u4e0a\u5347\u65f6\u6545\u969c\u4ece\u800c\u5f71\u54cdLED\u706f<\/font>\u5177\u7684\u53ef\u9760\u6027\uff0c\u6b63\u786e\u7684\u505a\u6cd5\u662f\u8981\u9009\u7528MOSFET\u5668\u4ef6\uff0cMOSFET\u5668\u4ef6\u7684\u4f7f\u7528\u5bff\u547d\u8981\u8fdc\u8fdc\u957f\u4e8e\u53cc\u6781\u578b\u5668\u4ef6\u3002<\/p>\n

\n\t    \u4e8c\u3001\u5c3d\u91cf\u4e0d\u8981\u4f7f\u7528\u7535\u89e3\u7535\u5bb9<\/strong><\/p>\n

\n\t    LED\u9a71\u52a8\u7535\u8def\u4e2d\u5230\u5e95\u8981\u4e0d\u8981\u4f7f\u7528\u7535\u89e3\u7535\u5bb9\uff1f\u76ee\u524d\u6709\u652f\u6301\u8005\u4e5f\u6709\u53cd\u5bf9\u8005\uff0c\u652f\u6301\u8005\u8ba4\u4e3a\u5982\u679c\u53ef\u4ee5\u5c06\u7535\u8def\u677f\u6e29\u5ea6\u63a7\u5236\u597d\uff0c\u4f9d\u6b21\u8fbe\u6210\u5ef6\u957f\u7535\u89e3\u7535\u5bb9\u5bff\u547d\u7684\u76ee\u7684\uff0c\u4f8b\u5982\u9009\u7528105\u5ea6\u5bff\u547d\u4e3a8000\u5c0f\u65f6\u7684\u9ad8\u6e29\u7535\u89e3\u7535\u5bb9\uff0c\u6839\u636e\u901a\u884c\u7684\u7535\u89e3\u7535\u5bb9\u5bff\u547d\u4f30\u7b97\u516c\u5f0f“\u6e29\u5ea6\u6bcf\u964d\u4f4e10\u5ea6\uff0c\u5bff\u547d\u589e\u52a0\u4e00\u500d”\uff0c\u90a3\u4e48\u5b83\u572895\u5ea6\u73af\u5883\u4e0b\u5de5\u4f5c\u5bff\u547d\u4e3a16000\u5c0f\u65f6\uff0c\u572885\u5ea6\u73af\u5883\u4e0b\u5de5\u4f5c\u5bff\u547d\u4e3a32000\u5c0f\u65f6\uff0c\u572875\u5ea6\u73af\u5883\u4e0b\u5de5\u4f5c\u5bff\u547d\u4e3a64000\u5c0f\u65f6\uff0c\u5047\u5982\u5b9e\u9645\u5de5\u4f5c\u6e29\u5ea6\u66f4\u4f4e\uff0c\u90a3\u4e48\u5bff\u547d\u4f1a\u66f4\u957f\uff01\u7531\u6b64\u770b\u6765\uff0c\u53ea\u8981\u9009\u7528\u9ad8\u54c1\u8d28\u7684\u7535\u89e3\u7535\u5bb9\u5bf9\u9a71\u52a8\u7535\u6e90\u7684\u5bff\u547d\u662f\u6ca1\u6709\u4ec0\u4e48\u5f71\u54cd\u7684\uff01<\/p>\n

\n\t    \u8fd8\u6709\u7684\u652f\u6301\u8005\u8ba4\u4e3a\u7531\u65e0\u7535\u89e3\u7535\u5bb9\u5e26\u6765\u7684\u9ad8\u7eb9\u6ce2\u7535\u6d41\u800c\u5bfc\u81f4\u7684\u4f4e\u9891\u95ea\u70c1\u4f1a\u5bf9\u67d0\u4e9b\u4eba\u773c\u9020\u6210\u751f\u7406\u4e0a\u7684\u4e0d\u9002\uff0c\u5e45\u5ea6\u5927\u7684\u4f4e\u9891\u7eb9\u6ce2\u4e5f\u4f1a\u5bfc\u81f4\u4e00\u4e9b\u6570\u7801\u50cf\u673a\u8bbe\u5907\u51fa\u73b0\u5dee\u9891\u95ea\u70c1\u7684\u4eae\u6697\u6805\u683c\u3002\u6240\u4ee5\uff0c\u9ad8\u54c1\u8d28\u5149\u6e90\u706f\u5177\u8fd8\u662f\u9700\u8981\u7535\u89e3\u7535\u5bb9\u7684\u3002\u4e0d\u8fc7\u53cd\u5bf9\u8005\u5219\u8ba4\u4e3a\u7535\u89e3\u7535\u5bb9\u4f1a\u81ea\u7136\u8001\u5316\uff0c\u53e6\u5916\uff0cLED\u706f\u5177\u7684\u6e29\u5ea6\u6781\u96be\u63a7\u5236\uff0c\u6240\u4ee5\u7535\u89e3\u7535\u5bb9\u7684\u5bff\u547d\u5fc5\u7136\u4f1a\u51cf\u5c11\uff0c\u4ece\u800c\u5f71\u54cdLED\u706f\u5177\u7684\u5bff\u547d\u3002<\/p>\n

\n\t    \u5bf9\u6b64\uff0cDougBailey\u8ba4\u4e3a\uff0c\u5728LED\u9a71\u52a8\u7535\u8def\u8f93\u5165\u90e8\u5206\u53ef\u4ee5\u8003\u8651\u4e0d\u7528\u7535\u89e3\u7535\u5bb9\uff0c\u5b9e\u9645\u4e0a\u4f7f\u7528PI\u7684LinkSwitch-PH\u5c31\u53ef\u4ee5\u7701\u53bb\u7535\u89e3\u7535\u5bb9\uff0cPI\u7684\u5355\u7ea7PFC\/\u6052\u6d41\u8bbe\u8ba1\u53ef\u4ee5\u8ba9\u8bbe\u8ba1\u5e08\u7701\u53bb\u5927\u5bb9\u91cf\u7535\u5bb9\uff0c\u5728\u8f93\u51fa\u7535\u8def\u4e2d\uff0c\u53ef\u4ee5\u7528\u9ad8\u8010\u538b\u9676\u74f7\u7535\u5bb9\u6765\u4ee3\u66ff\u7535\u89e3\u7535\u5bb9\u4ece\u800c\u63d0\u5347\u53ef\u9760\u6027\uff0c“\u6709\u7684\u4eba\u5728\u8bbe\u8ba1\u4e24\u7ea7\u7535\u8def\u7684\u65f6\u5019\uff0c\u5728\u8f93\u51fa\u91c7\u7528\u4e86\u4e00\u4e2a400V\u7684\u7535\u89e3\u7535\u5bb9\uff0c\u8fd9\u4f1a\u4e25\u91cd\u5f71\u54cd\u7535\u8def\u7684\u53ef\u9760\u6027\uff0c\u5efa\u8bae\u91c7\u7528\u5355\u7ea7\u7535\u8def\u7528\u9676\u74f7\u7535\u5bb9\u5c31\u53ef\u4ee5\u4e86\u3002”\u4ed6\u5f3a\u8c03\u3002“\u5bf9\u4e8e\u4e0d\u592a\u5173\u6ce8\u8c03\u5149\u529f\u80fd\u3001\u9ad8\u6e29\u73af\u5883\u53ca\u9700\u8981\u9ad8\u53ef\u9760\u6027\u7684\u5de5\u4e1a\u5e94\u7528\u6765\u8bf4\uff0c\u6211\u5f3a\u70c8\u5efa\u8bae\u4e0d\u91c7\u7528\u7535\u89e3\u7535\u5bb9\u8fdb\u884c\u8bbe\u8ba1\u3002”<\/p>\n

\n\t    \u4e09\u3001MOSFET\u7684\u8010\u538b\u4e0d\u8981\u4f4e\u4e8e700V<\/strong><\/p>\n

\n\t    \u8010\u538b600V\u7684MOSFET\u6bd4\u8f83\u4fbf\u5b9c\uff0c\u5f88\u591a\u8ba4\u4e3aLED\u706f\u5177\u7684\u8f93\u5165\u7535\u538b\u4e00\u822c\u662f220V\uff0c\u6240\u4ee5\u8010\u538b600V\u8db3\u591f\u4e86\uff0c\u4f46\u662f\u5f88\u591a\u65f6\u5019\u7535\u8def\u7535\u538b\u4f1a\u5230340V\uff0c\u5728\u6709\u6d6a\u6d8c\u7684\u65f6\u5019\uff0c600V\u7684MOSFET\u5f88\u5bb9\u6613\u88ab\u51fb\u7a7f\uff0c\u4ece\u800c\u5f71\u54cd\u4e86LED\u706f\u5177\u7684\u5bff\u547d\uff0c\u5b9e\u9645\u4e0a\u9009\u7528600VMOSFET\u53ef\u80fd\u8282\u7701\u4e86\u4e00\u4e9b\u6210\u672c\u4f46\u662f\u4ed8\u51fa\u7684\u5374\u662f\u6574\u4e2a\u7535\u8def\u677f\u7684\u4ee3\u4ef7\uff0c\u6240\u4ee5\uff0c“\u4e0d\u8981\u9009\u7528600V\u8010\u538b\u7684MOSFET\uff0c\u6700\u597d\u9009\u7528\u8010\u538b\u8d85\u8fc7700V\u7684MOSFET.”\u4ed6\u5f3a\u8c03\u3002 <\/p>\n

\n\t    \u56db\u3001\u5c3d\u91cf\u4f7f\u7528\u5355\u7ea7\u67b6\u6784\u7535\u8def<\/strong><\/p>\n

\n\t    Doug\u8868\u793a\u6709\u4e9bLED\u7535\u8def\u91c7\u7528\u4e86\u4e24\u7ea7\u67b6\u6784\uff0c\u5373“PFC\uff08\u529f\u7387\u56e0\u6570\u6821\u6b63\uff09+\u9694\u79bbDC\/DC\u53d8\u6362\u5668”\u7684\u67b6\u6784\uff0c\u8fd9\u6837\u7684\u8bbe\u8ba1\u4f1a\u964d\u4f4e\u7535\u8def\u7684\u6548\u7387\u3002\u4f8b\u5982\uff0c\u5982\u679cPFC\u7684\u6548\u7387\u662f95%\uff0c\u800cDC\/DC\u90e8\u5206\u7684\u6548\u7387\u662f88%\uff0c\u5219\u6574\u4e2a\u7535\u8def\u7684\u6548\u7387\u4f1a\u964d\u4f4e\u523083.6%\uff01“PI\u7684LinkSwitch-PH\u5668\u4ef6\u540c\u65f6\u5c06PFC\/CC\u63a7\u5236\u5668\u3001\u4e00\u4e2a725VMOSFET\u548cMOSFET\u9a71\u52a8\u5668\u96c6\u6210\u5230\u5355\u4e2a\u5c01\u88c5\u4e2d\uff0c\u5c06\u9a71\u52a8\u7535\u8def\u7684\u6548\u7387\u63d0\u5347\u523087%\uff01”Doug\u6307\u51fa\uff0c“\u8fd9\u6837\u7684\u5668\u4ef6\u53ef\u5927\u5927\u7b80\u5316\u7535\u8def\u677f\u5e03\u5c40\u8bbe\u8ba1\uff0c\u6700\u591a\u80fd\u7701\u53bb\u4f20\u7edf\u9694\u79bb\u53cd\u6fc0\u5f0f\u8bbe\u8ba1\u4e2d\u6240\u7528\u768425\u4e2a\u5143\u4ef6\uff01\u7701\u53bb\u7684\u5143\u4ef6\u5305\u62ec\u9ad8\u538b\u5927\u5bb9\u91cf\u7535\u89e3\u7535\u5bb9\u548c\u5149\u8026\u5668\u3002”Doug\u8868\u793aLED\u4e24\u7ea7\u67b6\u6784\u9002\u7528\u4e8e\u5fc5\u987b\u4f7f\u7528\u7b2c\u4e8c\u4e2a\u6052\u6d41\u9a71\u52a8\u7535\u8def\u624d\u80fd\u4f7fPFC\u9a71\u52a8LED\u6052\u6d41\u7684\u65e7\u5f0f\u9a71\u52a8\u5668\u3002\u8fd9\u4e9b\u8bbe\u8ba1\u5df2\u7ecf\u8fc7\u65f6\uff0c\u4e0d\u518d\u5177\u6709\u6210\u672c\u6548\u76ca\uff0c\u56e0\u6b64\u5728\u5927\u591a\u6570\u60c5\u51b5\u4e0b\u90fd\u6700\u597d\u91c7\u7528\u5355\u7ea7\u8bbe\u8ba1\u3002<\/p>\n

\n\t    \u4e94\u3001\u5c3d\u91cf\u4f7f\u7528MOSFET\u5668\u4ef6<\/strong><\/p>\n

\n\t    \u5982\u679c\u8bbe\u8ba1\u7684LED\u706f\u5177\u529f\u7387\u4e0d\u662f\u5f88\u9ad8\uff0cDoug\u5efa\u8bae\u4f7f\u7528\u96c6\u6210\u4e86MOSFET\u7684LED\u9a71\u52a8\u5668\u4ea7\u54c1\uff0c\u56e0\u4e3a\u8fd9\u6837\u505a\u7684\u597d\u5904\u662f\u96c6\u6210MOSFET\u7684\u5bfc\u901a\u7535\u963b\u5c11\uff0c\u4ea7\u751f\u7684\u70ed\u91cf\u8981\u6bd4\u5206\u7acb\u7684\u5c11\uff0c\u53e6\u5916\uff0c\u5c31\u662f\u96c6\u6210\u7684MOSFET\u662f\u63a7\u5236\u5668\u548cFET\u5728\u4e00\u8d77\uff0c\u4e00\u822c\u90fd\u6709\u8fc7\u70ed\u5173\u65ad\u529f\u80fd\uff0c\u5728MOSFET\u8fc7\u70ed\u65f6\u4f1a\u81ea\u52a8\u5173\u65ad\u7535\u8def\u8fbe\u5230\u4fdd\u62a4LED\u706f\u5177\u7684\u76ee\u7684\uff0c\u8fd9\u5bf9LED\u706f\u5177\u975e\u5e38\u91cd\u8981\uff0c\u56e0\u4e3aLED\u706f\u5177\u4e00\u822c\u5f88\u5c0f\u5de7\u4e14\u96be\u4ee5\u8fdb\u884c\u7a7a\u6c14\u6563\u70ed\u3002“\u6709\u7684\u65f6\u5019\u4f1a\u53d1\u751fLED\u56e0\u8fc7\u70ed\u71c3\u70e7\u4f24\u4eba\u7684\u60c5\u51b5\uff0c\u4f46\u662f\u6211\u4eec\u7684\u65b9\u6848\u4ece\u6765\u4e0d\u4f1a\u8fd9\u6837\u7684\u3002”\u4ed6\u8868\u793a\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

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