{"id":2566,"date":"2019-06-03T06:37:25","date_gmt":"2019-06-03T06:37:25","guid":{"rendered":""},"modified":"2019-06-03T14:37:46","modified_gmt":"2019-06-03T06:37:46","slug":"adi%3a%e5%ae%89%e9%9d%99%e4%b8%94%e7%ae%80%e5%8d%95%e7%9a%84silent+switcher%e5%99%a8%e4%bb%b6","status":"publish","type":"post","link":"http:\/\/www.szryc.com\/?p=2566","title":{"rendered":"ADI:\u5b89\u9759\u4e14\u7b80\u5355\u7684Silent Switcher\u5668\u4ef6"},"content":{"rendered":"

\n\t\u7b80\u4ecb<\/h2>\n

\n\t\u4e0d\u8a00\u800c\u55bb\uff0cPC\u7535\u8def\u677f<\/u>\u7684\u5e03\u5c40\u8bbe\u8ba1\u51b3\u5b9a\u4e86\u6bcf\u4e00\u79cd\u7535\u6e90\u8bbe\u8ba1\u7684\u6210\u8d25\u3002\u5b83\u51b3\u5b9a\u4e86\u4e00\u4e2a\u7535\u6e90\u7684\u529f\u80fd\u3001\u7535\u78c1\u5e72\u6270\uff08EMI<\/u>\uff09\u548c\u70ed\u884c\u4e3a\u3002\u867d\u7136\u5f00\u5173\u7535\u6e90<\/u>\u5e03\u5c40\u4e0d\u662f\u9ed1\u9b54\u6cd5\uff0c\u4f46\u5728\u8bbe\u8ba1\u8fc7\u7a0b\u4e2d\u4f1a\u7ecf\u5e38\u88ab\u5ffd\u89c6\uff0c\u6700\u7ec8\u53d1\u73b0\u5176\u81f3\u5173\u91cd\u8981\u5374\u4e3a\u65f6\u5df2\u665a\u3002\u56e0\u6b64\u9700\u8981\u4e00\u79cd\u884c\u4e4b\u6709\u6548\u7684\u65b9\u6cd5\uff0c\u4ece\u4e00\u5f00\u59cb\u5c31\u524a\u5f31\u8fd9\u4e9b\u6f5c\u5728\u7684EMI\u5a01\u80c1\uff0c\u65b9\u80fd\u786e\u4fdd\u7535\u6e90\u5b89\u9759\u800c\u7a33\u5b9a\u3002\u867d\u7136\u8bb8\u591a\u5f00\u5173\u6a21\u5f0f\u7535\u6e90\u8bbe\u8ba1\u4eba\u5458\u90fd\u5f88\u6e05\u695a\u5f00\u5173\u6a21\u5f0f\u7535\u6e90\u7684\u8bbe\u8ba1\u590d\u6742\u6027\u548c\u7ec6\u5fae\u5dee\u522b\uff0c\u4f46\u5f88\u591a\u516c\u53f8\u6839\u672c\u6ca1\u6709\u8db3\u591f\u7684\u8bbe\u8ba1\u4eba\u5458\u6ee1\u8db3\u6240\u6709\u9879\u76ee\u9700\u6c42\u5b8c\u6210\u8bbe\u8ba1\u3002\u4e0d\u5c11\u8bbe\u8ba1\u4eba\u5458\u5c06\u9000\u4f11\u5e76\u79bb\u5f00\u6b64\u884c\u4e1a\uff01\u90a3\u4e48\uff0c\u5982\u4f55\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\u5462\uff1f<\/p>\n

\n\t\u9996\u5148\uff0c\u5c31\u662f\u56e0\u4e3a\u6a21\u62df\u7535\u6e90\u8bbe\u8ba1\u4eba\u5458\u4e0d\u8db3\uff0c\u6240\u4ee5\u8981\u6c42\u8d8a\u6765\u8d8a\u591a\u7684\u6570\u5b57\u8bbe\u8ba1\u4eba\u5458\u8fdb\u884c\u5f00\u5173\u6a21\u5f0f\u7535\u6e90\u8bbe\u8ba1\uff01\u867d\u7136\u5927\u591a\u6570\u6570\u5b57\u8bbe\u8ba1\u4eba\u5458\u90fd\u77e5\u9053\u5982\u4f55\u4f7f\u7528\u7b80\u5355\u7684\u7ebf\u6027\u7a33\u538b\u5668<\/u>\uff0c\u4f46\u5e76\u975e\u6240\u6709\u8bbe\u8ba1\u90fd\u8981\u6c42\u964d\u538b\uff08\u964d\u538b\u6a21\u5f0f\uff09\u3002\u4e8b\u5b9e\u4e0a\uff0c\u5f88\u591a\u662f\u5347\u538b\u6a21\u5f0f\uff08\u5347\u538b\uff09\uff0c\u751a\u81f3\u662f\u964d\u538b-\u5347\u538b\u62d3\u6251\uff08\u964d\u538b\u548c\u5347\u538b\u6a21\u5f0f\u76f8\u7ed3\u5408\uff09\u3002<\/p>\n

\n\t <\/div>\n

\n\t\u663e\u7136\uff0c\u8bb8\u591a\u7535\u5b50\u7cfb\u7edf\u5236\u9020<\/u>\u5546\u90fd\u9762\u4e34\u4e00\u4e2a\u95ee\u9898\uff1a\u5982\u4f55\u5b9e\u73b0\u7cfb\u7edf\u6240\u9700\u7684\u6240\u6709\u5f00\u5173\u6a21\u5f0f\u7535\u6e90\u7535\u8def<\/u>\uff1f<\/p>\n

\n\t\u89e3\u51b3\u8bbe\u8ba1\u8d44\u6e90\u77ed\u7f3a<\/u>\u95ee\u9898<\/h2>\n

\n\t\u5728\u672c\u6587\u4e2d\uff0c\u6211\u5c06\u4ecb\u7ecd\u964d\u538b\u7a33\u538b\u5668\u5de5\u4f5c\u7684\u4e00\u4e9b\u57fa\u672c\u539f\u7406\uff0c\u5305\u62ec\u5f00\u5173\u7a33\u538b\u5668<\/u>\u70ed\u56de\u8def\u4e2d\u7684\u9ad8di\/dt\u548c\u5bc4\u751f\u7535\u611f<\/u>\u5982\u4f55\u5bfc\u81f4\u7535\u78c1\u566a\u58f0\u548c\u5f00\u5173\u632f\u94c3\u3002\u7136\u540e\u6211\u4eec\u5c06\u770b\u770b\u5982\u4f55\u51cf\u5c11\u9ad8\u9891\u566a\u58f0\u3002\u6211\u8fd8\u5c06\u4ecb\u7ecdADI<\/u>\u7684Power by Linear<\/u>™ Silent Switcher®\u6280\u672f\uff0c\u5305\u62ec\u5b83\u5982\u4f55\u6784\u6210\uff0c\u5e76\u6f14\u793a\u5b83\u5982\u4f55\u5e2e\u52a9\u89e3\u51b3EMI\u95ee\u9898\uff0c\u4e14\u4e1d\u6beb\u4e0d\u4f1a\u5f71\u54cd\u6027\u80fd\u3002\u5176\u4e2d\u8fd8\u5305\u62ecSilent Switcher\u5668\u4ef6\u5982\u4f55\u5de5\u4f5c\u3002<\/p>\n

\n\t\u6211\u8fd8\u5c06\u6982\u8ff0Silent Switcher\u7684\u5c01\u88c5\u548c\u5e03\u5c40\uff0c\u8ba8\u8bba\u8fd9\u4e9b\u5c01\u88c5\u548c\u5e03\u5c40\u5982\u4f55\u63d0\u9ad8\u964d\u538b\u8f6c\u6362\u5668<\/u>\u7684\u6574\u4f53\u6027\u80fd\u3002\u6b64\u5916\uff0c\u6211\u5c06\u6f14\u793a\u5982\u4f55\u5c06\u6b64\u6280\u672f\u878d\u5165\u6211\u4eec\u7684μModule®\u7a33\u538b\u5668\uff0c\u4ece\u800c\u63d0\u9ad8Silent Switcher\u5668\u4ef6\u7684\u96c6\u6210\u5ea6\u3002\u5bf9\u4e8e\u4e0d\u719f\u6089\u5f00\u5173\u6a21\u5f0f\u7535\u6e90\u8bbe\u8ba1\u6280\u672f\u7684\u8bbe\u8ba1\u4eba\u5458\uff0c\u8fd9\u4e9b\u7b80\u5355\u6613\u7528\u7684\u89e3\u51b3\u65b9\u6848\u4f1a\u5f88\u6709\u7528\u3002<\/p>\n

\n\t\u57fa\u672c\u964d\u538b\u7a33\u538b\u5668\u7535\u8def<\/h2>\n

\n\t\u6700\u57fa\u672c\u7684\u7535\u6e90\u62d3\u6251\u4e4b\u4e00\u662f\u964d\u538b\u7a33\u538b\u5668\uff0c\u5982\u56fe1\u6240\u793a\u3002EMI\u4ece\u9ad8di\/dt\u56de\u8def\u5f00\u59cb\u3002\u4f9b\u7535\u7ebf\u548c\u8d1f\u8f7d\u7ebf\u4e0d\u5e94\u5177\u6709\u9ad8\u4ea4\u6d41\u7535\u6d41<\/u>\u5206\u91cf\u3002\u56e0\u6b64\uff0c\u8f93\u5165\u7535\u5bb9<\/u>C2\u5e94\u5c06\u6240\u6709\u76f8\u5173\u7535\u6d41\u7684\u4ea4\u6d41\u5206\u91cf\u4f20\u8f93\u81f3\u8f93\u51fa\u7535\u5bb9C1\uff0c\u6240\u6709\u7535\u6d41\u4ea4\u6d41\u5206\u91cf\u5728\u8fd9\u91cc\u7ed3\u675f\u3002<\/p>\n

\n\t\"\u5b89\u9759\u4e14\u7b80\u5355\u7684Silent<\/p>\n

\n\t\u56fe1.\u540c\u6b65\u964d\u538b\u7a33\u538b\u5668\u539f\u7406\u56fe\u3002<\/p>\n

\n\t\u53c2\u8003\u56fe1\uff0c\u5728M1\u5173\u95ed\u800cM2\u6253\u5f00\u7684\u5f00\u542f\u5468\u671f\u4e2d\uff0c\u4ea4\u6d41\u7535\u6d41\u5728\u5b9e\u7ebf\u84dd\u8272\u56de\u8def\u4e2d\u6d41\u52a8\u3002\u5728\u5173\u95ed\u5468\u671f\u4e2d\uff0c\u5f53M1\u6253\u5f00\u800cM2\u5173\u95ed\u65f6\uff0c\u4ea4\u6d41\u7535\u6d41\u5728\u7eff\u8272\u865a\u7ebf\u56de\u8def\u4e2d\u6d41\u52a8\u3002\u5927\u591a\u6570\u4eba\u96be\u4ee5\u7406\u89e3\uff0c\u4ea7\u751f\u6700\u9ad8EMI\u7684\u56de\u8def\u65e2\u4e0d\u662f\u5b9e\u7ebf\u84dd\u8272\u56de\u8def\uff0c\u4e5f\u4e0d\u662f\u865a\u7ebf\u7eff\u8272\u56de\u8def\u3002\u800c\u662f\u865a\u7ebf\u7ea2\u8272\u56de\u8def\u4e2d\u6d41\u52a8\u7684\u5168\u5f00\u5173\u4ea4\u6d41\u7535\u6d41\uff0c\u4ece\u96f6\u5207\u6362\u81f3I\u5cf0\u503c\uff0c\u518d\u56de\u5230\u96f6\u3002\u865a\u7ebf\u7ea2\u8272\u56de\u8def\u901a\u5e38\u6307\u70ed\u56de\u8def\uff0c\u56e0\u4e3a\u5b83\u6709\u6700\u9ad8\u4ea4\u6d41\u7535\u6d41\u548cEMI\u80fd\u91cf\u3002<\/p>\n

\n\t\u5bfc\u81f4\u7535\u78c1\u566a\u58f0\u548c\u5f00\u5173\u632f\u94c3\u7684\u662f\u5f00\u5173\u7a33\u538b\u5668\u70ed\u56de\u8def\u4e2d\u7684\u9ad8di\/dt\u548c\u5bc4\u751f\u7535\u611f\u3002\u8981\u51cf\u5c11EMI\u5e76\u6539\u8fdb\u529f\u80fd\uff0c\u9700\u8981\u5c3d\u91cf\u51cf\u5c11\u865a\u7ebf\u7ea2\u8272\u56de\u8def\u7684\u8f90\u5c04\u6548\u5e94\u3002\u5982\u679c\u6211\u4eec\u80fd\u591f\u5c06\u865a\u7ebf\u7ea2\u8272\u56de\u8def\u7684PC\u7535\u8def\u677f\u9762\u79ef\u51cf\u5c11\u5230\u96f6\uff0c\u5e76\u4e14\u80fd\u591f\u4e70\u5230\u5177\u6709\u96f6\u963b\u6297<\/u>\u7684\u7406\u60f3\u7535\u5bb9\uff0c\u5c31\u80fd\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\u3002\u7136\u800c\uff0c\u5728\u73b0\u5b9e\u4e16\u754c\u4e2d\uff0c\u8bbe\u8ba1\u5de5\u7a0b\u5e08\u6240\u80fd\u505a\u7684\u5c31\u662f\u627e\u5230\u4e00\u4e2a\u6700\u4f73\u7684\u6298\u4e2d\u65b9\u6848\uff01<\/p>\n

\n\t\u90a3\u4e48\uff0c\u8fd9\u4e9b\u9ad8\u9891\u566a\u58f0\u5230\u5e95\u662f\u4ece\u54ea\u91cc\u6765\u7684\u5462\uff1f\u5728\u7535\u5b50\u7535\u8def\u4e2d\uff0c\u901a\u8fc7\u5bc4\u751f\u7535\u963b<\/u>\u3001\u7535\u611f\u548c\u7535\u5bb9\u8026\u5408<\/u>\uff0c\u5728\u5f00\u5173\u8f6c\u6362\u8fc7\u7a0b\u4e2d\uff0c\u4ea7\u751f\u4e86\u9ad8\u9891\u8c10\u6ce2\u3002\u77e5\u9053\u662f\u54ea\u91cc\u4ea7\u751f\u566a\u58f0\uff0c\u90a3\u4e48\u5982\u4f55\u51cf\u5c11\u9ad8\u9891\u5f00\u5173\u566a\u58f0\u5462\uff1f\u51cf\u5c11\u566a\u58f0\u7684\u4f20\u7edf\u65b9\u5f0f\u662f\u51cf\u6162MOSFET<\/u>\u5f00\u5173\u8fb9\u7f18\u3002\u901a\u8fc7\u51cf\u6162\u5185\u90e8\u5f00\u5173\u9a71\u52a8\u5668\u6216\u4ece\u5916\u90e8\u6dfb\u52a0\u7f13\u51b2\u5668\uff0c\u5c31\u53ef\u4ee5\u5b9e\u73b0\u3002<\/p>\n

\n\t\"\u5b89\u9759\u4e14\u7b80\u5355\u7684Silent<\/p>\n

\n\t\u56fe2.\u5982\u4f55\u5c06LT8610\u8f6c\u6362\u4e3aSilent Switcher\u5668\u4ef6——LT8614\u3002<\/p>\n

\n\t\u4f46\u662f\uff0c\u8fd9\u4f1a\u964d\u4f4e\u8f6c\u6362\u5668\u7684\u6548\u7387\uff0c\u56e0\u4e3a\u589e\u52a0\u4e86\u5f00\u5173\u635f\u8017——\u7279\u522b\u662f\u5f53\u5f00\u5173\u7a33\u538b\u5668\u5728\u9ad8\u5f00\u5173\u9891\u7387\uff08\u59822 MHz\uff09\u4e0b\u8fd0\u884c\u65f6\u3002\u8bf4\u5230\u8fd9\u91cc\uff0c\u6211\u4eec\u4e3a\u4f55\u8981\u57282 MHz\u7684\u9891\u7387\u4e0b\u8fd0\u884c\u5462\uff1f\u5b9e\u9645\u4e0a\u6709\u51e0\u4e2a\u539f\u56e0\uff1a<\/p>\n

\n\t\u25ba\u5b83\u5141\u8bb8\u4f7f\u7528\u8f83\u5c0f\uff08\u5c3a\u5bf8\uff09\u7684\u5916\u90e8\u5143\u4ef6\uff0c\u5982\u7535\u5bb9\u548c\u7535\u611f\u3002\u4f8b\u5982\uff0c\u6bcf\u6b21\u5f00\u5173\u9891\u7387\u52a0\u500d\uff0c\u4f1a\u4f7f\u7535\u611f\u503c\u548c\u8f93\u51fa\u7535\u5bb9\u503c\u51cf\u534a\u3002<\/p>\n

\n\t\u25ba\u5728\u6c7d\u8f66\u5e94\u7528\u4e2d\uff0c\u57282 MHz\u4e0b\u5f00\u5173\u53ef\u4ee5\u907f\u514d\u5728AM\u9891\u6bb5\u4ea7\u751f\u566a\u58f0\u3002<\/p>\n

\n\t\u51cf\u5c0f\u8f90\u5c04\uff0c\u4e5f\u53ef\u4f7f\u7528\u6ee4\u6ce2\u5668<\/u>\u548c\u5c4f\u853d\uff0c\u4f46\u8fd9\u9700\u8981\u66f4\u591a\u7684\u5916\u90e8\u5143\u4ef6\u548c\u7535\u8def\u677f\u9762\u79ef\u3002\u8fd8\u53ef\u91c7\u7528\u5c55\u9891\uff08SSFM\uff09\u6280\u672f\uff0c\u4f46\u8fd9\u6837\u5728\u5df2\u77e5\u8303\u56f4\u5185\u4f1a\u4f7f\u7cfb\u7edf\u65f6\u949f<\/u>\u6296\u52a8\u3002SSFM\u6709\u52a9\u4e8e\u6ee1\u8db3EMI\u6807\u51c6\u8981\u6c42\u3002EMI\u80fd\u91cf\u88ab\u6253\u6563\u5206\u5e03\u5728\u9891\u57df\u4e0a\u3002\u867d\u7136\u666e\u901a\u5f00\u5173\u7535\u6e90\u6240\u9009\u7684\u5f00\u5173\u9891\u7387\u901a\u5e38\u4f1a\u5728AM\u9891\u6bb5\u4e4b\u5916\uff08530 kHz\u81f31.8 MHz\uff09\uff0c\u4f46\u5728AM\u9891\u6bb5\u5185\uff0c\u672a\u7ecf\u8c03\u5236\u7684\u5f00\u5173\u8c10\u6ce2\u4ecd\u53ef\u80fd\u4e0d\u7b26\u5408\u4e25\u683c\u7684\u6c7d\u8f66EMI\u8981\u6c42\u3002\u6dfb\u52a0SSFM\u529f\u80fd\u53ef\u660e\u663e\u51cf\u5c11AM\u9891\u6bb5\u5185\u53ca\u5176\u4ed6\u533a\u57df\u4e2d\u7684EMI\u3002<\/p>\n

\n\t\u6216\u8005\u5c31\u4f7f\u7528ADI\u7684Silent Switcher\u6280\u672f\uff0c\u8be5\u6280\u672f\u80fd\u591f\u6ee1\u8db3\u4e0a\u8ff0\u6240\u6709\u8981\u6c42\uff1a<\/p>\n

\n\t\u25ba\u9ad8\u6548\u7387<\/p>\n

\n\t\u25ba\u9ad8\u5f00\u5173\u9891\u7387<\/p>\n

\n\t\u25ba\u4f4e\u7535\u78c1\u8f90\u5c04\uff08EMI\uff09<\/p>\n

\n\tSilent Switcher\u6280\u672f<\/p>\n

\n\tSilent Switcher\u5668\u4ef6\u65e0\u9700\u51cf\u6162\u5f00\u5173\u8fb9\u7f18\u901f\u7387\uff0c\u89e3\u51b3\u4e86EMI\u548c\u6548\u7387\u4e4b\u95f4\u7684\u6743\u8861\u95ee\u9898\u3002\u90a3\u4e48\u5982\u4f55\u624d\u80fd\u5b9e\u73b0\u5462\uff1f\u8003\u8651\u4f7f\u7528LT8610\uff0c\u5982\u56fe2\u5de6\u4fa7\u6240\u793a\u3002\u8fd9\u662f\u652f\u630142 V\u8f93\u5165\u7684\u5355\u7247\uff08\u5185\u90e8\u6709FET\uff09\u540c\u6b65\u964d\u538b\u8f6c\u6362\u5668\uff0c\u53ef\u63d0\u4f9b\u9ad8\u8fbe2.5 A\u7684\u8f93\u51fa\u7535\u6d41\u3002\u8bf7\u6ce8\u610f\uff0c\u5176\u5de6\u4e0a\u89d2\u6709\u4e00\u4e2a\u8f93\u5165\u5f15\u811a\uff08VIN\uff09\u3002<\/p>\n

\n\t\u4f46\u662f\uff0c\u5c06LT8610\u4e0eLT8614\uff08\u652f\u630142 V\u8f93\u5165\u7684\u5355\u7247\u540c\u6b65\u964d\u538b\u8f6c\u6362\u5668\uff0c\u53ef\u63d0\u4f9b\u9ad8\u8fbe4 A\u7684\u8f93\u51fa\u7535\u6d41\uff09\u76f8\u6bd4\uff0c\u6211\u4eec\u53ef\u4ee5\u770b\u5230\uff0cLT8614\u5728\u5c01\u88c5\u7684\u53e6\u4e00\u4fa7\u6709\u4e24\u4e2aVIN\u5f15\u811a\u548c\u4e24\u4e2a\u63a5\u5730\u5f15\u811a\u3002\u8fd9\u5f88\u91cd\u8981\uff0c\u56e0\u4e3a\u5b83\u662f\u5b9e\u73b0\u8d85\u4f4e\u566a\u58f0\u5f00\u5173\u7684\u4e00\u90e8\u5206\uff01<\/p>\n

\n\t\u5982\u4f55\u4f7f\u5f00\u5173\u7a33\u538b\u5668\u5177\u6709\u8d85\u4f4e\u566a\u58f0<\/h2>\n

\n\t\u5982\u4f55\u5b9e\u73b0\u8fd9\u4e2a\u76ee\u6807\uff1f\u5728\u82af\u7247\u53e6\u4e00\u4fa7\u7684VIN\u548c\u63a5\u5730\u5f15\u811a\u4e4b\u95f4\u653e\u7f6e\u4e24\u4e2a\u8f93\u5165\u7535\u5bb9\u53ef\u6d88\u9664\u78c1\u573a\u3002\u5e7b\u706f\u7247\u4e2d\u7a81\u51fa\u663e\u793a\u4e86\u8fd9\u4e00\u70b9\uff0c\u5728\u539f\u7406\u56fe\u548c\u6f14\u793a\u677f\u4e0a\u5747\u7528\u7ea2\u8272\u7bad\u5934\u6307\u5411\u7535\u5bb9\u7684\u4f4d\u7f6e\uff0c\u5982\u56fe3\u6240\u793a\u3002<\/p>\n

\n\t\"\u5b89\u9759\u4e14\u7b80\u5355\u7684Silent<\/p>\n

\n\t\u56fe3.LT8614\u56fe\uff0c\u663e\u793a\u6ee4\u6ce2\u5668\u7535\u5bb9\u5b89\u7f6e\u5728IC\u53e6\u4e00\u4fa7\u7684VIN\u548c\u63a5\u5730\u5f15\u811a\u4e4b\u95f4\u3002<\/p>\n

\n\tLT8614\u8be6\u60c5<\/strong><\/p>\n

\n\tLT8614\u5305\u542bSilent Switcher\u529f\u80fd\u3002\u5229\u7528\u8be5\u529f\u80fd\uff0c\u6211\u4eec\u901a\u8fc7\u4f7f\u7528\u94dc\u67f1\u5012\u88c5\u82af\u7247\u5c01\u88c5\u80fd\u591f\u51cf\u5c11\u5bc4\u751f\u7535\u611f\u3002\u6b64\u5916\uff0c\u8fd8\u6709\u53cd\u5411VIN\u3001\u63a5\u5730\u548c\u8f93\u5165\u7535\u5bb9\uff0c\u53ef\u6d88\u9664\u78c1\u573a\uff08\u9002\u7528\u53f3\u624b\u6cd5\u5219\uff09\u4ee5\u964d\u4f4eEMI\u8f90\u5c04\u3002<\/p>\n

\n\t\u7531\u4e8e\u4e0d\u9700\u8981\u4f7f\u7528\u710a\u7ebf\u952e\u5408\u5f0f\u88c5\u914d\u6280\u672f\u6240\u8981\u6c42\u7684\u957f\u952e\u5408\u7ebf\uff0c\u4e0d\u4f1a\u4ea7\u751f\u5927\u7684\u5bc4\u751f\u7535\u963b\u548c\u7535\u611f\uff0c\u4ece\u800c\u53ef\u51cf\u5c0f\u5c01\u88c5\u5bc4\u751f\u7535\u611f\u3002\u4e24\u4e2a\u5bf9\u79f0\u5206\u5e03\u7684\u8f93\u5165\u70ed\u56de\u8def\u4ea7\u751f\u7684\u53cd\u5411\u78c1\u573a\u76f8\u4e92\u62b5\u6d88\uff0c\u5e76\u4e14\u7535\u56de\u8def\u6ca1\u6709\u51c0\u78c1\u573a\u3002<\/p>\n

\n\t\u6211\u4eec\u5c06LT8614 Silent Switcher\u7a33\u538b\u5668\u4e0e\u5f53\u524d\u5148\u8fdb\u7684\u5f00\u5173\u7a33\u538b\u5668LT8610\u8fdb\u884c\u6bd4\u8f83\u3002\u5728GTE<\/u>M\u5ba4\u4e2d\uff0c\u5bf9\u4e24\u4e2a\u5668\u4ef6\u7684\u6807\u51c6\u6f14\u793a\u677f\u4f7f\u7528\u76f8\u540c\u8d1f\u8f7d\u3001\u76f8\u540c\u8f93\u5165\u7535\u538b\u548c\u76f8\u540c\u7535\u611f\u8fdb\u884c\u4e86\u6d4b\u8bd5<\/u>\u3002\u6211\u4eec\u53d1\u73b0\uff0c\u4e0e\u4f7f\u7528LT8610\u5177\u6709\u5f88\u4e0d\u9519\u7684EMI\u6027\u80fd\u76f8\u6bd4\uff0c\u4f7f\u7528LT8614\u65f6\u8fd8\u80fd\u63d0\u9ad820 dB\uff0c\u7279\u522b\u662f\u5728\u7ba1\u7406\u66f4\u9ad8\u9891\u7387\u66f4\u56f0\u96be\u7684\u533a\u57df\u3002\u5728\u6574\u4f53\u8bbe\u8ba1\u4e2d\uff0c\u4e0e\u5176\u4ed6\u654f\u611f\u7cfb\u7edf\u76f8\u6bd4\uff0cLT8614\u5f00\u5173\u7535\u6e90\u9700\u8981\u7684\u6ee4\u6ce2\u66f4\u5c11\u3001\u8ddd\u79bb\u66f4\u77ed\uff0c\u4ece\u800c\u53ef\u4ee5\u5b9e\u73b0\u66f4\u7b80\u5355\u7d27\u51d1\u7684\u8bbe\u8ba1\u3002\u6b64\u5916\uff0c\u5728\u65f6\u57df\u5185\uff0cLT8614\u5728\u5f00\u5173\u8282\u70b9\u8fb9\u7f18\u7684\u6027\u80fd\u826f\u597d\u3002<\/p>\n

\n\t\"\u5b89\u9759\u4e14\u7b80\u5355\u7684Silent<\/p>\n

\n\t\u56fe4.LT8614\u8f90\u5c04EMI\u6027\u80fd\u53ef\u6ee1\u8db3\u6700\u4e25\u683c\u7684CISPR 25 Class 5\u9650\u5236\u8981\u6c42\u3002<\/p>\n

\n\tSilent Switcher\u5668\u4ef6\u7684\u8fdb\u4e00\u6b65\u589e\u5f3a<\/h2>\n

\n\t\u5c3d\u7ba1LT8614\u5177\u6709\u51fa\u8272\u7684\u6027\u80fd\uff0c\u4f46\u6211\u4eec\u5e76\u6ca1\u6709\u505c\u6b62\u6539\u8fdb\u7684\u6b65\u4f10\u3002\u4e8e\u662f\uff0cLT8640\u964d\u538b\u7a33\u538b\u5668\u91c7\u7528Silent Switcher\u67b6\u6784\uff0c\u65e8\u5728\u6700\u5927\u9650\u5ea6\u5730\u51cf\u5c11EMI\/EMC<\/u>\u8f90\u5c04\uff0c\u540c\u65f6\u5728\u9ad8\u8fbe3 MHz\u7684\u9891\u7387\u4e0b\u63d0\u4f9b\u9ad8\u6548\u7387\u3002\u5b83\u91c7\u75283 mm × 4 mm QFN\u5c01\u88c5\uff0c\u91c7\u7528\u96c6\u6210\u7535\u6e90\u5355\u7247\u5f0f\u7ed3\u6784\uff0c\u540c\u65f6\u63d0\u4f9b\u6240\u6709\u5fc5\u9700\u7684\u7535\u8def\u529f\u80fd\uff0c\u5171\u540c\u6784\u6210PCB\u5360\u7528\u7a7a\u95f4\u6700\u5c0f\u7684\u89e3\u51b3\u65b9\u6848\u3002\u77ac\u53d8\u6001\u54cd\u5e94\u6027\u80fd\u4ecd\u7136\u5f88\u51fa\u8272\uff0c\u4efb\u4f55\u8d1f\u8f7d\uff08\u4ece\u96f6\u7535\u6d41\u5230\u6ee1\u7535\u6d41\uff09\u65f6\u7684\u8f93\u51fa\u7535\u538b\u7eb9\u6ce2\u4f4e\u4e8e10 mV p-pat\u3002LT8640\u5141\u8bb8\u5728\u9ad8\u9891\u7387\u4e0b\u8fdb\u884c\u9ad8VIN\u5230\u4f4eVOUT\u8f6c\u6362\uff0c\u6700\u77ed\u5f00\u5173\u5bfc\u901a\u65f6\u95f4\u4e3a30 ns\u3002<\/p>\n

\n\t\u4e3a\u6539\u8fdbEMI\/EMC\uff0cLT8640\u53ef\u5de5\u4f5c\u5728\u5c55\u9891\u6a21\u5f0f\u3002\u8be5\u529f\u80fd\u4ee520%\u7684\u4e09\u89d2\u8c03\u9891\u8c03\u6574\u65f6\u949f\u3002\u5f53LT8640\u5904\u4e8e\u5c55\u9891\u8c03\u5236\u6a21\u5f0f\u65f6\uff0c\u4f7f\u7528\u4e09\u89d2\u8c03\u9891\u529f\u80fd\u5728RT\u8bbe\u5b9a\u503c\u4e0e\u7ea6\u9ad8\u4e8e\u8be5\u503c20%\u4e4b\u95f4\u8c03\u6574\u5f00\u5173\u9891\u7387\u3002\u8c03\u5236\u9891\u7387\u7ea6\u4e3a3 kHz\u3002\u4f8b\u5982\uff0c\u5f53LT8640\u8bbe\u4e3a2 MHz\u65f6\uff0c3 kHz\u901f\u7387\u4e0b\u7684\u9891\u7387\u5c06\u4ece2 MHz\u81f32.4 MHz\u4e0d\u7b49\u3002\u9009\u62e9\u5c55\u9891\u5de5\u4f5c\u6a21\u5f0f\u65f6\uff0c\u7a81\u53d1\u6a21\u5f0f\uff08Burs<\/u>t Mode®\uff09\u64cd\u4f5c\u4f1a\u7981\u7528\uff0c\u5668\u4ef6\u5c06\u5728\u8109\u51b2\u8df3\u8dc3\u6a21\u5f0f\u6216\u5f3a\u5236\u8fde\u7eed\u6a21\u5f0f\u4e0b\u8fd0\u884c\u3002<\/p>\n

\n\t\u7136\u800c\uff0c\u5c3d\u7ba1\u6211\u4eec\u5728Silent Switcher\u6570\u636e\u624b\u518c\u4e2d\u90fd\u6709\u8bf4\u660e\uff0c\u5982\u63d0\u4f9b\u4e86\u539f\u7406\u56fe\u548c\u5e03\u5c40\u5efa\u8bae\uff0c\u4ee5\u53ca\u5c06\u8f93\u5165\u7535\u5bb9\u653e\u5728\u5c3d\u53ef\u80fd\u9760\u8fd1IC\u4e24\u4fa7\u7684\u4f4d\u7f6e——\u6709\u4e00\u4e9b\u5ba2\u6237\u4ecd\u7136\u4f1a\u51fa\u9519\u3002\u6b64\u5916\uff0c\u6211\u4eec\u7684\u5185\u90e8\u5de5\u7a0b\u5e08\u4e5f\u82b1\u4e86\u592a\u591a\u7684\u65f6\u95f4\u6765\u89e3\u51b3\u5ba2\u6237\u7684PCB\u5e03\u5c40\u95ee\u9898\u3002\u56e0\u6b64\uff0c\u6211\u4eec\u7684\u8bbe\u8ba1\u4eba\u5458\u63d0\u51fa\u4e86\u89e3\u51b3\u6b64\u95ee\u9898\u7684\u6700\u4f73\u89e3\u51b3\u65b9\u6848——Silent Switcher 2\u67b6\u6784\u3002<\/p>\n

\n\tSilent Switcher 2<\/h2>\n

\n\t\u91c7\u7528Silent Switcher 2\u6280\u672f\uff0c\u6211\u4eec\u53ea\u9700\u5c06\u7535\u5bb9\u96c6\u6210\u5728\u65b0LQFN\u5c01\u88c5\u5185\uff1aVIN\u7535\u5bb9\u3001IntVCC\u548c\u5347\u538b\u7535\u5bb9——\u5c3d\u53ef\u80fd\u9760\u8fd1\u5f15\u811a\u653e\u7f6e\u3002\u4f18\u52bf\u662f\u5c06\u6240\u6709\u70ed\u56de\u8def\u548c\u63a5\u5730\u5c42\u90fd\u5305\u62ec\u5728\u5185\uff0c\u4ece\u800c\u964d\u4f4e\u4e86EMI\u3002\u5916\u90e8\u5143\u4ef6\u8d8a\u5c11\uff0c\u89e3\u51b3\u65b9\u6848\u5c3a\u5bf8\u5c31\u8d8a\u5c0f\u3002\u6b64\u5916\uff0c\u6211\u4eec\u8fd8\u6d88\u9664\u4e86PCB\u5e03\u5c40\u654f\u611f\u6027\u3002<\/p>\n

\n\t\u5982\u56fe5\u6240\u793a\uff0c\u53ef\u4ee5\u770b\u51faLT8640\u548cLT8640S\u7684\u539f\u7406\u56fe\u6709\u4f55\u4e0d\u540c\u3002\u800c\u8425\u9500\u7a81\u7834\u53e3\u662f\u4e3a\u5305\u542b\u5185\u90e8\u7535\u5bb9\u7684\u96c6\u6210\u5ea6\u66f4\u9ad8\u7684\u65b0\u7248\u672c\u51a0\u4ee5“S”\u7684\u540e\u7f00\u3002\u56e0\u4e3a\u5b83\u6bd4\u7b2c\u4e00\u4ee3\u66f4“\u5b89\u9759”\uff01<\/p>\n

\n\t\"\u5b89\u9759\u4e14\u7b80\u5355\u7684Silent<\/p>\n

\n\t\u56fe5.LT8640S\u662f\u4e00\u6b3e\u5177\u6709\u66f4\u9ad8\u7684\u7535\u5bb9\u96c6\u6210\u5ea6\u7684Silent Switcher 2\u5668\u4ef6\u3002<\/p>\n

\n\tSilent Switcher 2\u6280\u672f\u63d0\u9ad8\u4e86\u6563\u70ed\u6027\u80fd\u3002LQFN\u5012\u88c5\u82af\u7247\u5c01\u88c5\u4e0a\u7684\u591a\u4e2a\u5927\u5c3a\u5bf8\u63a5\u5730\u88f8\u9732\u710a\u76d8\u6709\u52a9\u4e8e\u5c01\u88c5\u548cPCB\u6563\u70ed\u3002\u7531\u4e8e\u6211\u4eec\u6d88\u9664\u4e86\u9ad8\u7535\u963b\u952e\u5408\u7ebf\uff0c\u56e0\u6b64\u8fd8\u63d0\u9ad8\u4e86\u8f6c\u6362\u6548\u7387\u3002LT8640S\u7684EMI\u6027\u80fd\u8f7b\u677e\u6ee1\u8db3\u8f90\u5c04EMI\u6027\u80fdCISPR 25 Class 5\u5cf0\u503c\u9650\u5236\u8981\u6c42\u5e76\u4e14\u6709\u8f83\u5927\u7684\u88d5\u91cf\u3002<\/p>\n

\n\t\u4e0b\u4e00\u6b65\uff1a\u6240\u6709\u7ec4\u4ef6\u90fd\u4e0eSilent Switcher 2 μModule\u7a33\u538b\u5668\u96c6\u6210<\/p>\n

\n\tSilent Switcher\u6280\u672f\u5982\u6b64\u5f15\u4eba\u6ce8\u76ee\uff0c\u6211\u4eec\u9009\u62e9\u5c06\u5176\u878d\u5165\u6211\u4eec\u7684μModule\u7a33\u538b\u5668\u4ea7\u54c1\u7ebf\u3002\u6240\u6709\u7ec4\u4ef6\u90fd\u96c6\u6210\u5728\u4e00\u4e2a\u5c0f\u5c3a\u5bf8\u5c01\u88c5\u4e2d\uff0c\u4e3a\u7528\u6237\u63d0\u4f9b\u4e86\u4e00\u4e2a\u7b80\u5355\u53ef\u9760\u3001\u9ad8\u6027\u80fd\u548c\u9ad8\u7535\u6e90\u5bc6\u5ea6\u7684\u89e3\u51b3\u65b9\u6848\u3002 LTM8053\u548cLTM8073\u662f\u51e0\u4e4e\u96c6\u6210\u4e86\u6240\u6709\u7ec4\u4ef6\u7684\u5fae\u578b\u6a21\u5757\u7a33\u538b\u5668\uff0c\u53ea\u6709\u5c11\u91cf\u7535\u5bb9\u548c\u7535\u963b\u63a5\u5728\u5916\u90e8\u3002<\/p>\n

\n\t\"\u5b89\u9759\u4e14\u7b80\u5355\u7684Silent<\/p>\n

\n\t\u56fe6.LTM8053 Silent Switcher 2 μModule\u3002<\/p>\n

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

\n\t\u7efc\u4e0a\u6240\u8ff0\uff0cSilent Switcher\u529f\u80fd\u548c\u4f18\u52bf\u5c06\u4f7f\u60a8\u7684\u5f00\u5173\u6a21\u5f0f\u7535\u6e90\u8bbe\u8ba1\u66f4\u5bb9\u6613\u6ee1\u8db3CISPR 32\u548cCISPR 25\u7b49\u5404\u79cd\u6297\u566a\u6807\u51c6\u8981\u6c42\u3002\u5b83\u4eec\u80fd\u591f\u8f7b\u677e\u6709\u6548\u5730\u505a\u5230\u8fd9\u4e00\u70b9\u662f\u7531\u4e8e\u4ee5\u4e0b\u7279\u6027\uff1a<\/p>\n

\n\t\u25ba\u80fd\u591f\u5728\u5927\u4e8e2 MHz\u5f00\u5173\u9891\u7387\u4e0b\u8fdb\u884c\u9ad8\u6548\u8f6c\u6362\uff0c\u5e76\u4e14\u5bf9\u8f6c\u6362\u6548\u7387\u7684\u5f71\u54cd\u6700\u5c0f\u3002<\/p>\n

\n\t\u25ba\u5185\u90e8\u65c1\u8def\u7535\u5bb9\u51cf\u5c11EMI\u8f90\u5c04\u5e76\u63d0\u4f9b\u66f4\u7d27\u51d1\u7684\u89e3\u51b3\u65b9\u6848\u5360\u677f\u7a7a\u95f4\u3002<\/p>\n

\n\t\u25ba\u91c7\u7528Silent Switcher 2\u6280\u672f\u57fa\u672c\u4e0a\u6d88\u9664\u4e86PCB\u5e03\u5c40\u7684\u654f\u611f\u6027\u3002<\/p>\n

\n\t\u25ba\u53ef\u9009\u5c55\u9891\u8c03\u5236\u6709\u52a9\u4e8e\u964d\u4f4e\u566a\u58f0\u654f\u611f\u5ea6\u3002<\/p>\n

\n\t\u25ba\u4f7f\u7528Silent Switcher\u5668\u4ef6\u65e2\u53ef\u8282\u7701PCB\u9762\u79ef\uff0c\u53c8\u53ef\u51cf\u5c11\u6240\u9700\u7684\u5c42\u6570\u3002
\n\t\"\"<\/p>\n

\n\t\u3000\u3000Tony Arm<\/u>strong<\/p>\n

\n\t\u3000\u3000Tony Armstrong \uff3btony.armstrong@analog.com\uff3d\u76ee\u524d\u662fADI\u516c\u53f8Power by Linear\u4ea7\u54c1\u90e8\u7684\u4ea7\u54c1\u8425\u9500\u603b\u76d1\u3002\u4ed6\u8d1f\u8d23\u7535\u6e90\u8f6c\u6362\u548c\u7ba1\u7406\u4ea7\u54c1\u4ece\u4e0a\u5e02\u5230\u505c\u4ea7\u7684\u6240\u6709\u4e8b\u52a1\u3002\u52a0\u5165ADI\u4e4b\u524d\uff0cTony\u5728Linear Technology\u3001Siliconix Inc.\u3001Semtech<\/u> Corp.\u3001Fairchild<\/u>Semiconductors\u548cIntel<\/u>\u62c5\u4efb\u8fc7\u8425\u9500\u3001\u9500\u552e\u548c\u8fd0\u8425\u65b9\u9762\u7684\u4e0d\u540c\u804c\u4f4d\u3002\u4ed6\u6bd5\u4e1a\u4e8e\u82f1\u683c\u5170\u66fc\u5f7b\u65af\u7279\u5927\u5b66\uff0c\u83b7\u5f97\u5e94\u7528\u6570\u5b66\uff08\u8363\u8a89\uff09\u5b66\u58eb\u5b66\u4f4d\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

\u7b80\u4ecb \u4e0d\u8a00\u800c\u55bb\uff0cPC \u7535\u8def\u677f \u7684\u5e03\u5c40\u8bbe\u8ba1\u51b3\u5b9a\u4e86\u6bcf\u4e00\u79cd\u7535\u6e90\u8bbe\u8ba1\u7684\u6210\u8d25\u3002\u5b83\u51b3\u5b9a\u4e86\u4e00\u4e2a\u7535\u6e90\u7684\u529f\u80fd\u3001\u7535\u78c1\u5e72\u6270\uff08E MI \uff09\u548c\u70ed\u884c\u4e3a\u3002\u867d\u7136 \u5f00\u5173\u7535\u6e90 \u5e03\u5c40\u4e0d\u662f\u9ed1\u9b54\u6cd5\uff0c\u4f46\u5728\u8bbe\u8ba1\u8fc7\u7a0b\u4e2d\u4f1a\u7ecf\u5e38\u88ab<\/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\/2566"}],"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=2566"}],"version-history":[{"count":0,"href":"http:\/\/www.szryc.com\/index.php?rest_route=\/wp\/v2\/posts\/2566\/revisions"}],"wp:attachment":[{"href":"http:\/\/www.szryc.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2566"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.szryc.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2566"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.szryc.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2566"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}