{"id":491,"date":"2012-02-12T00:14:45","date_gmt":"2012-02-11T16:14:45","guid":{"rendered":"http:\/\/blog.dword1511.info\/?p=491"},"modified":"2012-02-12T01:43:00","modified_gmt":"2012-02-11T17:43:00","slug":"%e4%b8%80%e7%9b%b4%e8%88%8d%e4%b8%8d%e5%be%97%e6%8a%9b%e5%bc%83%e7%9a%84%e9%ad%85%e6%97%8f-usb-%e5%90%8e%e5%a4%87%e7%94%b5%e6%ba%90","status":"publish","type":"post","link":"http:\/\/blog.dword1511.info\/?p=491","title":{"rendered":"\u4e00\u76f4\u820d\u4e0d\u5f97\u629b\u5f03\u7684\u9b45\u65cf USB \u540e\u5907\u7535\u6e90"},"content":{"rendered":"<p>\u8fd9\u4e2a\u5907\u7528\u7535\u6e90\u7684\u578b\u53f7\u662f UA0403 \uff0c\u5176\u5b9e\u662f\u6bd4\u8f83\u5e38\u89c1\u7684\u73a9\u610f\uff0c\u4f7f\u7528\u4e24\u8282 AA \u7535\u6c60\uff08\u4e94\u53f7\u7535\u6c60\uff09\u4f5c\u4e3a\u7535\u6e90\uff0c\u8f93\u51fa 4.3V \u6216 4.7V \u6700\u5927 300mA \u3002\u4e8c\u624b\u7684\uff0c\u4ece\u9ad8\u4e2d\u5ba4\u53cb\u7684\u624b\u91cc\u4e70\u6765\u7684\uff0c\u4e00\u76f4\u7528\u5230\u73b0\u5728\u3002<\/p>\n<p>\u4f5c\u4e3a\u4e00\u4e2a\u540c\u65f6\u62e5\u6709 18650 \u667a\u80fd\u7535\u6c60\u76d2\u4ee5\u53ca LTC1700 \u540c\u6b65\u6574\u6d41\u5347\u538b\u6a21\u5757\uff08\u6548\u7387\u53ef\u8fbe 95% \uff09\u7684\u4eba\uff0c\u6211\u4e4b\u6240\u4ee5\u6ca1\u628a\u8fd9\u5bb6\u4f19\u6253\u5165\u51b7\u5bab\uff0c\u539f\u56e0\u6709\u4e24\u70b9\uff1a<\/p>\n<ol>\n<li>\u8fd9\u4e2a\u73a9\u610f\u6bd4\u8f83\u5c0f\u5de7\uff0c\u4fbf\u4e8e\u968f\u8eab\u643a\u5e26\uff0c\u800c\u4e14\u6bd4\u8f83\u6709\u770b\u76f8\uff1b<\/li>\n<li>\u5176\u7535\u6e90\u662f\u4e94\u53f7\u7535\u6c60\uff0c\u5f88\u591a\u5730\u65b9\u90fd\u53ef\u4ee5\u4e70\u5230\u78b1\u6027\u7535\u6c60\u585e\u8fdb\u53bb\uff0c\u4e0d\u50cf 18650 \u9502\u7535\u5982\u679c\u6ca1\u7535\u4e86\u53c8\u627e\u4e0d\u5230\u5145\u7535\u7684\u5730\u65b9\u5c31\u4f1a\u676f\u5177\u3002<\/li>\n<\/ol>\n<p>\u6700\u540e\u7167\u4f8b\u5949\u4e0a\u5916\u89c2\u53ca\u62c6\u89e3\u56fe\u7247\u4ee5\u53ca\u5206\u6790\u3002\u5916\u89c2\u4e3a\u624b\u673a\u62cd\u6444\u3002<\/p>\n<p><!--more--><a href=\"http:\/\/blog.dword1511.info\/wp-uploads\/2012\/02\/20120211005.jpg\"><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter size-medium wp-image-492\" title=\"20120211(005)\" src=\"http:\/\/blog.dword1511.info\/wp-uploads\/2012\/02\/20120211005-400x300.jpg\" alt=\"\" width=\"400\" height=\"300\" srcset=\"http:\/\/blog.dword1511.info\/wp-uploads\/2012\/02\/20120211005-400x300.jpg 400w, http:\/\/blog.dword1511.info\/wp-uploads\/2012\/02\/20120211005.jpg 800w\" sizes=\"(max-width: 400px) 100vw, 400px\" \/><\/a><\/p>\n<p>\u6b63\u9762\u5916\u89c2\uff08\u6a21\u7cca + \u8be1\u5f02\u7684\u767d\u5e73\u8861\u2026\u2026 \u5565\u65f6\u5019\u80fd\u6709\u81ea\u5df1\u7684\u76f8\u673a\u554a\uff09\u3002UA0403 \u5f88\u8d34\u5fc3\u7684\u5e26\u4e86\u6807\u51c6 A \u578b USB \u63d2\u5ea7\u4ee5\u53ca B\u578b MiniUSB \u63d2\u5934\uff0c\u7ed9\u5404\u7c7b\u8bbe\u5907\u5145\u7535\u90fd\u662f\u5f88\u65b9\u4fbf\u7684\uff0c\u65e0\u5948 MiniUSB \u63d2\u5934\u7684\u7ebf\u8d28\u91cf\u592a\u5dee\uff0c\u540e\u6765\u91cc\u9762\u65ad\u6389\u4e86\uff0c\u4e8e\u662f\u7ed9\u62c6\u5f00\u53d6\u4e0b\u6765\u4e86\uff0c\u5934\u4e0a\u7559\u4e86\u4e2a\u7a9f\u7abf\u2026\u2026<\/p>\n<p>\u5f00\u5173\u63d0\u4f9b\u8f6f\u5173\u65ad\u30014.3V \u8f93\u51fa\u4ee5\u53ca 4.7V \u8f93\u51fa\u7684\u5207\u6362\u3002\u5e94\u6025\u5145\u7535\u57fa\u672c\u591f\u4e86\uff0c\u4f46\u662f Apple \u7684\u8bbe\u5907\u5c31\u522b\u60f3\u4e86\u3002<\/p>\n<p><a href=\"http:\/\/blog.dword1511.info\/wp-uploads\/2012\/02\/20120211006.jpg\"><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter size-medium wp-image-493\" title=\"20120211(006)\" src=\"http:\/\/blog.dword1511.info\/wp-uploads\/2012\/02\/20120211006-400x300.jpg\" alt=\"\" width=\"400\" height=\"300\" srcset=\"http:\/\/blog.dword1511.info\/wp-uploads\/2012\/02\/20120211006-400x300.jpg 400w, http:\/\/blog.dword1511.info\/wp-uploads\/2012\/02\/20120211006-1024x768.jpg 1024w, http:\/\/blog.dword1511.info\/wp-uploads\/2012\/02\/20120211006.jpg 1600w\" sizes=\"(max-width: 400px) 100vw, 400px\" \/><\/a><\/p>\n<p>\u80cc\u9762\u7684\u9b45\u65cf Logo \u4ee5\u53ca\u7535\u6c60\u4ed3\u9501\u6263\u3002\u767d\u8272\u70e4\u6f06\u8d28\u611f\u8ddf\u7070\u8272\u7684\u642d\u914d\u975e\u5e38\u8d5e\u3002<\/p>\n<p><a href=\"http:\/\/blog.dword1511.info\/wp-uploads\/2012\/02\/20120211007.jpg\"><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter size-medium wp-image-494\" title=\"20120211(007)\" src=\"http:\/\/blog.dword1511.info\/wp-uploads\/2012\/02\/20120211007-400x300.jpg\" alt=\"\" width=\"400\" height=\"300\" srcset=\"http:\/\/blog.dword1511.info\/wp-uploads\/2012\/02\/20120211007-400x300.jpg 400w, http:\/\/blog.dword1511.info\/wp-uploads\/2012\/02\/20120211007-1024x768.jpg 1024w, http:\/\/blog.dword1511.info\/wp-uploads\/2012\/02\/20120211007.jpg 1600w\" sizes=\"(max-width: 400px) 100vw, 400px\" \/><\/a><\/p>\n<p>\u7535\u6c60\u4ed3\u5185\u90e8\uff0c\u8bbe\u8ba1\u5f97\u86ee\u7cbe\u81f4\u7684\u3002\u4e0d\u8fc7\u76d6\u5b50\u91cc\u9762\u8bbe\u8ba1\u6563\u70ed\u5b54\u662f\u4e2a\u4ec0\u4e48\u610f\u601d\uff1f<\/p>\n<p>\u7279\u5730\u7528\u4e86\u4f4e\u81ea\u653e\u7535\u7684\u4e09\u6d0b eneloop \u6b21\u4e16\u4ee3\u954d\u6c22\u7535\u6c60\u3002\u7535\u6c60\u540c\u5411\u653e\u7f6e\u7684\u539f\u56e0\u662f\u56e0\u4e3a\u8fd9\u73a9\u610f\u5173\u673a\u540e\u4ecd\u6709\u5f85\u673a\u7535\u6d41\u3002\u6211\u53ef\u4e0d\u60f3\u7b49\u5230\u8981\u7528\u7684\u65f6\u5019\u62ff\u51fa\u6765\u53d1\u73b0\u7535\u6c60\u6ca1\u7535\u4e86\uff0c\u6240\u4ee5\u60f3\u5230\u4e86\u8fd9\u6837\u4e00\u4e2a\u7b80\u5355\u7684\u50a8\u5b58\u65b9\u6cd5\u3002<\/p>\n<p><a href=\"http:\/\/blog.dword1511.info\/wp-uploads\/2012\/02\/20120211009.jpg\"><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter size-medium wp-image-495\" title=\"20120211(009)\" src=\"http:\/\/blog.dword1511.info\/wp-uploads\/2012\/02\/20120211009-400x300.jpg\" alt=\"\" width=\"400\" height=\"300\" srcset=\"http:\/\/blog.dword1511.info\/wp-uploads\/2012\/02\/20120211009-400x300.jpg 400w, http:\/\/blog.dword1511.info\/wp-uploads\/2012\/02\/20120211009-1024x768.jpg 1024w, http:\/\/blog.dword1511.info\/wp-uploads\/2012\/02\/20120211009.jpg 1600w\" sizes=\"(max-width: 400px) 100vw, 400px\" \/><\/a><\/p>\n<p>\u94ed\u724c\u3002\u8bf4\u5b9e\u8bdd\u8f93\u51fa\u592a\u5f31\u4e86\uff0c\u53ea\u80fd\u5e94\u6025\u7528\u3002<\/p>\n<p><a href=\"http:\/\/blog.dword1511.info\/wp-uploads\/2012\/02\/20120211010.jpg\"><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter size-medium wp-image-496\" title=\"20120211(010)\" src=\"http:\/\/blog.dword1511.info\/wp-uploads\/2012\/02\/20120211010-400x300.jpg\" alt=\"\" width=\"400\" height=\"300\" srcset=\"http:\/\/blog.dword1511.info\/wp-uploads\/2012\/02\/20120211010-400x300.jpg 400w, http:\/\/blog.dword1511.info\/wp-uploads\/2012\/02\/20120211010-1024x768.jpg 1024w, http:\/\/blog.dword1511.info\/wp-uploads\/2012\/02\/20120211010.jpg 1600w\" sizes=\"(max-width: 400px) 100vw, 400px\" \/><\/a><\/p>\n<p>\u53d6\u4e0b\u7535\u6c60\u540e\u7684\u6837\u5b50\uff0c\u89e6\u70b9\u4e5f\u662f\u5f88\u4e0d\u9519\u7684\u3002<\/p>\n<p><a href=\"http:\/\/blog.dword1511.info\/wp-uploads\/2012\/02\/P1030183.jpg\"><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter size-medium wp-image-497\" title=\"P1030183\" src=\"http:\/\/blog.dword1511.info\/wp-uploads\/2012\/02\/P1030183-400x300.jpg\" alt=\"\" width=\"400\" height=\"300\" srcset=\"http:\/\/blog.dword1511.info\/wp-uploads\/2012\/02\/P1030183-400x300.jpg 400w, http:\/\/blog.dword1511.info\/wp-uploads\/2012\/02\/P1030183-1024x768.jpg 1024w, http:\/\/blog.dword1511.info\/wp-uploads\/2012\/02\/P1030183.jpg 1280w\" sizes=\"(max-width: 400px) 100vw, 400px\" \/><\/a><\/p>\n<p>\u62c6\u5f00\u770b\u770b\u5185\u90e8\u5427\u3002\u7535\u8def\u677f\u867d\u7136\u88ab\u58f3\u5b50\u8ddf\u7535\u6c60\u5f39\u7c27\u56fa\u5b9a\u5f97\u5f88\u7d27\u4f46\u662f\u8fd8\u662f\u4e0a\u4e86\u4e2a\u87ba\u4e1d\u3002USB \u63d2\u5ea7\u8d28\u91cf\u4e0d\u9519\uff0c\u4f46\u662f\u4e0a\u9762\u7684\u52a9\u710a\u5242\u6ca1\u7ed9\u6d17\u6389\uff0c\u770b\u8d77\u6765\u975e\u5e38\u5730\u810f\u3002\u7535\u5bb9\u7ed9\u5f97\u5f88\u62a0\uff0c\u8f93\u5165\u8f93\u51fa\u90fd\u662f 10V 100\u03bcF \u7684\u94bd\u7535\u5bb9\u3002\u7535\u611f\u770b\u8d77\u6765\u8fd8\u4e0d\u9519\uff0c\u662f\u5c01\u95ed\u7684\uff0c\u5e94\u8be5\u662f\u5927\u5382\u7684\u4f5c\u54c1\u3002\u7535\u611f\u91cf\u4e3a 4.7\u03bcH \uff0c\u53ef\u89c1\u5f00\u5173\u9891\u7387\u4e0d\u4f4e\u3002<\/p>\n<p><a href=\"http:\/\/blog.dword1511.info\/wp-uploads\/2012\/02\/P1030184.jpg\"><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter size-medium wp-image-498\" title=\"P1030184\" src=\"http:\/\/blog.dword1511.info\/wp-uploads\/2012\/02\/P1030184-400x300.jpg\" alt=\"\" width=\"400\" height=\"300\" srcset=\"http:\/\/blog.dword1511.info\/wp-uploads\/2012\/02\/P1030184-400x300.jpg 400w, http:\/\/blog.dword1511.info\/wp-uploads\/2012\/02\/P1030184-1024x768.jpg 1024w, http:\/\/blog.dword1511.info\/wp-uploads\/2012\/02\/P1030184.jpg 1280w\" sizes=\"(max-width: 400px) 100vw, 400px\" \/><\/a><\/p>\n<p>\u53d6\u51fa\u7535\u8def\u677f\u770b\u80cc\u9762\uff0c\u987a\u4fbf\u62ff\u6389\u788d\u4e8b\u7684\u574f MiniUSB \u7ebf\u3002\u5f00\u5173\u710a\u5f97\u5f88\u70c2\uff0c\u90fd\u662f\u865a\u7684\uff0c\u5c31\u50cf\u628a\u5b83\u6441\u5230\u4e86\u6ce1\u6ce1\u7cd6\u4e0a\u3002\u7535\u6c60\u5f39\u7c27\u5012\u662f\u710a\u5f97\u5f88\u4e0d\u9519\u3002\u8f6f\u5173\u673a\u540e\u8f93\u51fa\u7535\u538b\u57fa\u672c\u7b49\u4e8e\u5185\u90e8\u7535\u6c60\u7684\u7535\u538b\u3002<\/p>\n<p>PMIC \u7684 marking \u662f\u201c AC-8K W0H \u201d\uff0c\u662f Richtek \u7684\u98ce\u683c \uff0c\u5176\u4e2d\u201c 8K W0H \u201d\u662f\u65e5\u671f\u8ddf\u6279\u53f7\u4ee3\u7801\u3002\u6839\u636e <a href=\"http:\/\/www.rom.by\/files\/Richtek_Marking_Code.PDF\" target=\"_blank\">Richtek Marking Information<\/a> \u3001\u5c01\u88c5\uff08 VDFN-10 3mm \u00d7 3mm\uff09\u4ee5\u53ca\u7535\u8def\u7684\u5f15\u811a\u5206\u5e03\u53ef\u4ee5\u786e\u5b9a\u8fd9\u8d27\u5c31\u662f <a href=\"http:\/\/www.richtek.com\/product_detail.jsp?s=277\" target=\"_blank\">RT9278<\/a> \u3002\u8fd9\u53ea boost LDO \u7684\u5de5\u4f5c\u9891\u7387\u4e3a 600kHz \uff0c\u6240\u4ee5\u53ef\u4ee5\u7528\u6bd4\u8f83\u5c0f\u7684\u7535\u611f\uff081 &#8211; 10\u03bcH\uff09\u8ddf\u7535\u5bb9\uff08\u8f93\u5165\u8f93\u51fa 40\u03bcF \u4ee5\u4e0b\u5373\u53ef\uff09\u3002\u7535\u8def\u4e3a\u540c\u6b65\u6574\u6d41\uff0c\u5f00\u5173\u7ba1\u3001\u7eed\u6d41\u7ba1\u5185\u7f6e\uff0c\u6548\u7387\u53ef\u9ad8\u8fbe 95% \uff0c\u8f93\u5165 1.5V \u81f3 5.5V \uff0c\u8f93\u51fa\u6700\u9ad8 5.5V \uff0c\u7535\u6d41\u9650\u5236\u4e3a 2A \uff0c\u771f\u662f\u8ba9\u6211\u522e\u76ee\u76f8\u770b\uff0c\u4ee5\u524d\u5b8c\u5168\u4e0d\u77e5\u9053\u8fd9\u662f\u4e2a\u5b9d\u7269\u554a\uff01\u4e0d\u8fc7\u8fd9\u73a9\u610f\u6709\u4e2a\u69fd\u70b9\u5c31\u662f\u5f85\u673a\u65f6\u6709 1\u03bcA \u7684\u7535\u6d41\u6d88\u8017\uff08\u8001\u7248\u672c\u7684 datasheet \u4e0a\u5199\u7684\u662f 1mA \uff0c\u592a\u53ef\u6015\u4e86\uff09\uff0c\u518d\u52a0\u4e0a\u7535\u5bb9\u6f0f\u7535\u6d41\u4ee5\u53ca\u51e0\u4e2a\u6708\u4e0d\u7528\uff0c\u8017\u7535\u91cf\u4f30\u8ba1\u5c31\u5f88\u53ef\u89c2\u4e86\u3002<\/p>\n<p>\u7247\u5916\u9700\u8981\u4e00\u53ea MOSFET \u6765\u5b9e\u73b0\u8fc7\u538b\u65f6\u7684\u7ebf\u6027\u7a33\u538b\uff08\u5176\u5b9e\u4e3b\u8981\u662f\u7528\u6765\u7535\u6d41\u53cd\u9988\u9650\u6d41\u7684\uff0c\u8fd9\u73a9\u610f\u6700\u521d\u662f\u88ab\u8bbe\u8ba1\u7528\u6765\u9a71\u52a8 LED \u7684\uff09\u3002\u677f\u5b50\u4e0a\u7684 MOSFET \u7684 Marking \u4e3a\u201c 127<span style=\"text-decoration: underline;\">H<\/span> \u201d\uff08\u6216\u8005\u662f I \/ l \u5f00\u5934\uff1f\uff09\uff0c\u6839\u636e\u5176\u5c01\u88c5\u76ee\u6d4b\u6709 I<sub>C<\/sub> &lt; 3A \uff0cT<sub>PD<\/sub> &lt; 1.5W \u3002\u5177\u4f53\u578b\u53f7\u5b9e\u5728\u67e5\u4e0d\u51fa\u6765\uff0c\u4e0d\u8fc7 RT9278 \u7684 datasheet \u7ed9\u51fa\u7684\u5e94\u7528\u7535\u8def\u4e0a\u6b64\u5904\u662f\u4e00\u53ea AO7401 \u6216\u8005 AO3403 \uff0c\u5c01\u88c5\u5e94\u8be5\u662f SC-70 \uff08\u6bd4 SOT-23 \u80d6\u4e00\u70b9\uff09\uff0c\u5e94\u8be5\u7528\u7684\u662f\u5176\u4ed6\u5382\u5bb6\u751f\u4ea7\u7684\u7c7b\u4f3c\u7684 P-Channel MOSFET \u3002<\/p>\n<p>\u8f93\u51fa\u88ab LDO \u8ddf\u53cd\u9988\u7535\u963b\u6b7b\u6b7b\u7684\u5361\u5728 300mA \uff0c\u5176\u5b9e\u8fd9\u73a9\u610f\u52a0\u4e0a eneloop \u5230 500mA \u5176\u5b9e\u6ca1\u5565\u95ee\u9898\u3002\u597d\u5728 RT9278 \u5185\u90e8\u7684 boost converter \u8ddf FB\/LDO \u7535\u8def\u662f\u5b8c\u5168\u5206\u5f00\u7684\uff0c\u77ed\u8def\u6389\u90a3\u4e2a\u5916\u7f6e\u7684 MOSFET \u5373\u53ef\u89e3\u9664\u7535\u6d41\u9650\u5236\uff0c\u4e0d\u8fc7\u6709\u53ef\u80fd\u5bfc\u81f4\u82af\u7247\u8fc7\u70ed\uff08\u7247\u4e0a\u65e0\u8fc7\u70ed\u4fdd\u62a4\u7535\u8def\uff09\u3002<\/p>\n<p><a href=\"http:\/\/blog.dword1511.info\/wp-uploads\/2012\/02\/20120211012.jpg\"><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter size-medium wp-image-499\" title=\"20120211(012)\" src=\"http:\/\/blog.dword1511.info\/wp-uploads\/2012\/02\/20120211012-400x300.jpg\" alt=\"\" width=\"400\" height=\"300\" srcset=\"http:\/\/blog.dword1511.info\/wp-uploads\/2012\/02\/20120211012-400x300.jpg 400w, http:\/\/blog.dword1511.info\/wp-uploads\/2012\/02\/20120211012-1024x768.jpg 1024w, http:\/\/blog.dword1511.info\/wp-uploads\/2012\/02\/20120211012.jpg 1600w\" sizes=\"(max-width: 400px) 100vw, 400px\" \/><\/a><\/p>\n<p>\u56de\u5934\u770b\u4e00\u773c\u58f3\u5b50\u3002LED \u8fd8\u505a\u4e86\u9694\u79bb\u514d\u5f97\u5468\u56f4\u4e00\u5708\u5149\u6655\uff0c\u9b45\u65cf\u5728\u5916\u89c2\u4e0a\u771f\u662f\u820d\u5f97\u4e0b\u5de5\u592b\u554a\u3002<\/p>\n<p><a href=\"http:\/\/blog.dword1511.info\/wp-uploads\/2012\/02\/20120211014.jpg\"><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter size-medium wp-image-500\" title=\"20120211(014)\" src=\"http:\/\/blog.dword1511.info\/wp-uploads\/2012\/02\/20120211014-400x300.jpg\" alt=\"\" width=\"400\" height=\"300\" srcset=\"http:\/\/blog.dword1511.info\/wp-uploads\/2012\/02\/20120211014-400x300.jpg 400w, http:\/\/blog.dword1511.info\/wp-uploads\/2012\/02\/20120211014-1024x768.jpg 1024w, http:\/\/blog.dword1511.info\/wp-uploads\/2012\/02\/20120211014.jpg 1600w\" sizes=\"(max-width: 400px) 100vw, 400px\" \/><\/a><\/p>\n<p>\u7535\u6c60\u7aef\u52a0\u4e86\u4e2a 10\u03bcF \u7684 MLCC \uff0c\u5e0c\u671b\u80fd\u5bf9\u6548\u7387\u63d0\u9ad8\u6709\u5e2e\u52a9\u3002MOSFET \u4e0a\u7684 Marking \u5b9e\u5728\u662f\u770b\u4e0d\u6e05\u695a\u554a\u3002<\/p>\n<hr \/>\n<p><strong>\u66f4\u65b0\uff1a<\/strong><\/p>\n<p>\u5728\u8fdb\u884c\u4e86\u4e00\u4e9b\u7b80\u5355\u7684\u6d4b\u8bd5\u540e\u53d1\u73b0 UA0403 \u7684 OFF \u5176\u5b9e\u8fde\u8f6f\u5173\u673a\u90fd\u4e0d\u662f\uff0c\u56e0\u4e3a\u6574\u4e2a\u5f00\u5173\u5c31\u662f\u5728 boost \u7535\u8def\u7684\u53cd\u9988\u4e0a\u505a\u624b\u811a\uff08\u6bd5\u7adf\u662f\u591a\u7535\u538b\u561b\uff09\u3002\u5916\u7f6e\u4e09\u6781\u7ba1\u7684\u4f5c\u7528\u662f\u5f00\u5173\u62e8\u81f3 OFF \u65f6\u5c06\u6307\u793a\u706f LED \u4ece\u8f93\u51fa\u7535\u8def\u4e2d\u65ad\u5f00\u3002\u4e5f\u5c31\u662f\u8bf4\uff0c\u5373\u4f7f\u628a\u5f00\u5173\u7f6e\u4e8e OFF \uff0c\u6574\u4e2a\u7535\u8def\u90fd\u5728\u8fd0\u884c\uff0c\u8017\u7535\u91cf\u4e0d\u5c0f\u3002<\/p>\n<p>\u9650\u5236\u7535\u6d41\u7684\u539f\u56e0\u8fd8\u4e0d\u6e05\u695a\u3002\u8bbe\u5b9a\u5230 4.7V \u65f6\u52a0\u4e0a\u5927\u7ea6 10\u03a9 \u7684\u8d1f\u8f7d\uff0c\u8f93\u51fa\u53ef\u4ee5\u5230 4.3V 440mA \uff0c\u4e14\u957f\u671f\u8fd0\u884c\u65e0\u660e\u663e\u53d1\u70ed\u3002\u4e5f\u8bb8\u5728 linear regulation \u7684\u8bef\u5dee\u8303\u56f4\u4e4b\u5185\u5427\u3002LED \u6307\u793a\u706f\u6709\u4e00\u7aef\u901a\u8fc7\u7535\u963b\u63a5\u5165\u4e86\u53cd\u9988\u7535\u8def\uff0c\u4f5c\u7528\u4e0d\u660e\uff08\u6700\u540e\u4e00\u5f20\u56fe\u5de6\u4e0a\u89d2\u7684\u90a3\u8ddf\u7ebf\u5373\u4e3a\u7535\u538b\u53cd\u9988\uff0c\u76f4\u63a5\u63a5\u5165 RT9278 \u7684 1 \u53f7\u7ba1\u811a\u5373\u53cd\u9988\u811a\uff09\u3002USB \u63d2\u5ea7\u7684 GND \u5230\u7535\u6c60\u8d1f\u6781\u65e0\u7535\u963b\uff0cV<sub>CC<\/sub> \u5230 RT9278 \u7684 6 \u53f7\u7ba1\u811a\uff08 V<sub>OUT<\/sub> \uff09\u65e0\u7535\u963b\u3002<\/p>\n<p><strong>\u5efa\u8bae\uff1a\u4e0d\u7528\u65f6\u53d6\u51fa\u7535\u6c60\u3002<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u8fd9\u4e2a\u5907\u7528\u7535\u6e90\u7684\u578b\u53f7\u662f UA0403 \uff0c\u5176\u5b9e\u662f\u6bd4\u8f83\u5e38\u89c1\u7684\u73a9\u610f\uff0c\u4f7f\u7528\u4e24\u8282 AA \u7535\u6c60\uff08\u4e94\u53f7\u7535\u6c60\uff09\u4f5c\u4e3a\u7535\u6e90\uff0c\u8f93\u51fa 4 &hellip; <a href=\"http:\/\/blog.dword1511.info\/?p=491\" class=\"more-link\">\u7ee7\u7eed\u9605\u8bfb<span class=\"screen-reader-text\">\u4e00\u76f4\u820d\u4e0d\u5f97\u629b\u5f03\u7684\u9b45\u65cf USB \u540e\u5907\u7535\u6e90<\/span> <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_mi_skip_tracking":false},"categories":[7],"tags":[],"_links":{"self":[{"href":"http:\/\/blog.dword1511.info\/index.php?rest_route=\/wp\/v2\/posts\/491"}],"collection":[{"href":"http:\/\/blog.dword1511.info\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/blog.dword1511.info\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/blog.dword1511.info\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/blog.dword1511.info\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=491"}],"version-history":[{"count":6,"href":"http:\/\/blog.dword1511.info\/index.php?rest_route=\/wp\/v2\/posts\/491\/revisions"}],"predecessor-version":[{"id":507,"href":"http:\/\/blog.dword1511.info\/index.php?rest_route=\/wp\/v2\/posts\/491\/revisions\/507"}],"wp:attachment":[{"href":"http:\/\/blog.dword1511.info\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=491"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/blog.dword1511.info\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=491"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/blog.dword1511.info\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=491"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}