{"id":1707,"date":"2018-12-11T07:57:04","date_gmt":"2018-12-11T07:57:04","guid":{"rendered":""},"modified":"2018-12-11T15:58:07","modified_gmt":"2018-12-11T07:58:07","slug":"%e5%bc%80%e5%85%b3%e7%94%b5%e6%ba%90%e5%a4%9a%e7%a7%8d%e5%85%b3%e9%94%ae%e8%ae%be%e8%ae%a1%e6%9d%83%e8%a1%a1%e5%92%8c%e6%9c%80%e4%bd%b3%e5%ae%9e%e8%b7%b5","status":"publish","type":"post","link":"http:\/\/www.szryc.com\/?p=1707","title":{"rendered":"\u5f00\u5173\u7535\u6e90\u591a\u79cd\u5173\u952e\u8bbe\u8ba1\u6743\u8861\u548c\u6700\u4f73\u5b9e\u8df5"},"content":{"rendered":"

\u5178\u578b\u7684\u53ef\u7a7f\u6234\u5f0f\u8bbe\u5907\u6216\u4fbf\u643a\u5f0f\u8bbe\u5907\u4f7f\u7528\u4e86\u9502\u79bb\u5b50\u7535\u6c60\uff0c\u6807\u79f0\u8f93\u51fa\u4e3a 3.6 \u4f0f\u76f4\u6d41\u7535\u3002\u5927\u591a\u6570\u7535\u6c60\u4f9b\u7535\u7684\u5e94\u7528\u90fd\u4f9d\u8d56\u4e8e\u4e00\u4e2a\u6216\u591a\u4e2a\u4e32\u8054\u7684\u9502\u79bb\u5b50\u7535\u6c60\u6765\u63d0\u4f9b\u4e3b\u4f9b\u7535\u7535\u538b\u3002\u867d\u7136\u8fd9\u8db3\u4ee5\u6ee1\u8db3\u5927\u591a\u6570\u5e94\u7528\u7684\u9700\u6c42\uff0c\u4f46\u7b14\u8bb0\u672c\u7535\u8111\u3001\u5e73\u677f\u7535\u8111\u548c\u5176\u4ed6\u79fb\u52a8\u8bbe\u5907\u5177\u6709\u7684\u4e00\u4e9b\u7279\u5b9a\u529f\u80fd\u9700\u8981\u66f4\u9ad8\u7684\u7535\u538b\u3002<\/font>

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\n\u8fd9\u6837\u7684\u4f8b\u5b50\u5305\u62ec\u767d\u5149\u53d1\u5149\u4e8c\u6781\u7ba1 (LED) \u80cc\u5149\u9a71\u52a8\u3001\u5c04\u9891\u6536\u53d1\u5668\u3001\u7cbe\u5bc6\u6a21\u62df\u7535\u8def\uff0c\u4ee5\u53ca\u5149\u63a5\u6536\u5668\u4e2d\u7684\u96ea\u5d29\u5149\u7535\u4e8c\u6781\u7ba1 (APD) \u7684\u504f\u7f6e\u7535\u8def\u3002\u5347\u538b DC-DC \u7a33\u538b\u5668\u53ef\u5c06\u4f4e\u8f93\u5165\u7535\u538b\u8f6c\u6362\u4e3a\u9ad8\u8f93\u51fa\u7535\u538b\uff0c\u4ece\u800c\u6ee1\u8db3\u8fd9\u4e9b\u5e94\u7528\u9700\u6c42\u3002<\/font>

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\n

\n\u5178\u578b\u5347\u538b\u8f6c\u6362\u5668\u62d3\u6251<\/font><\/span>

\n\u5347\u538b\u7a33\u538b\u5668\u7684\u5173\u952e\u5143\u5668\u4ef6\u5305\u62ec\uff1a\u7535\u611f\u5668\uff1b\u534a\u5bfc\u4f53\u5f00\u5173\uff0c\u901a\u5e38\u4e3a\u529f\u7387 MOSFET\uff1b\u6574\u6d41\u5668\u4e8c\u6781\u7ba1\uff1b\u96c6\u6210\u7535\u8def (IC) \u63a7\u5236\u5757\uff1b\u8f93\u5165\u548c\u8f93\u51fa\u7535\u5bb9\u5668\uff08\u56fe 1\uff09\u3002<\/font>
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\n\t\"\"<\/font><\/div>\n



\n\u56fe 1\uff1a \u57fa\u672c\u5347\u538b\u7a33\u538b\u5668\u914d\u7f6e\uff0c\u663e\u793a\u5f53\u5f00\u5173\u6253\u5f00\u548c\u5173\u95ed\u65f6\u7684\u7535\u6d41\u65b9\u5411\uff08\u56fe\u7247\u6765\u6e90\uff1a Digi-Key Electronics\uff0c\u57fa\u4e8e Texas Instruments \u63d0\u4f9b\u7684\u539f\u59cb\u8d44\u6599\uff09<\/font>

\n

\n

\n\u5f53\u65bd\u52a0 VIN \u7535\u538b\u4e14\u7535\u6e90\u5f00\u5173\u5173\u95ed\u65f6\uff0c\u7535\u6d41\u6cbf\u7740\u84dd\u8272\u8def\u5f84\uff0c\u901a\u8fc7\u7535\u611f\u5668\u6d41\u5230\u5730\u3002\u7535\u611f\u5668\u5c06\u7535\u80fd\u5b58\u50a8\u5728\u5176\u78c1\u573a\u4e2d\u3002\u4e8c\u6781\u7ba1\u53cd\u5411\u504f\u7f6e\uff0c\u968f\u7740\u5176\u5b58\u50a8\u7684\u7535\u80fd\u4f9b\u5e94\u7ed9\u8d1f\u8f7d\uff0c\u8f93\u51fa\u7535\u5bb9\u5668\u4e24\u7aef\u7684\u7535\u538b\u964d\u4f4e\u3002<\/font>

\n

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\n\u76f8\u53cd\uff0c\u5f53\u7535\u6e90\u5f00\u5173\u6253\u5f00\u65f6\uff0c\u7535\u6d41\u6cbf\u7740\u7ea2\u8272\u8def\u5f84\u6d41\u52a8\uff0c\u56e0\u4e3a\u5d29\u6e83\u7684\u78c1\u573a\u4ea7\u751f\u6b63\u7535\u538b\uff0c\u5e76\u901a\u8fc7\u6b63\u5411\u504f\u7f6e\u7684\u4e8c\u6781\u7ba1\u4f20\u8f93\u7535\u611f\u5668\u7535\u80fd\uff0c\u4e3a\u8f93\u51fa\u7535\u5bb9\u5668\u5145\u7535\u5e76\u4f9b\u5e94\u7ed9\u8d1f\u8f7d\u3002<\/font>

\n\u901a\u8fc7\u6539\u53d8\u7535\u6e90\u5f00\u5173\u7684\u5360\u7a7a\u6bd4\uff0c\u63a7\u5236\u5757\u4fdd\u6301\u6052\u5b9a\u7684\u8f93\u51fa\u7535\u538b\uff0c\u4ee5\u54cd\u5e94\u8f93\u5165\u7535\u538b\u53d8\u5316\u548c\u8d1f\u8f7d\u53d8\u5316\u3002\u8f93\u51fa\u7aef\u7684\u7535\u963b\u5206\u538b\u5668\u53ef\u4e3a\u63a7\u5236\u5757\u63d0\u4f9b\u7535\u538b\u53cd\u9988\uff0c\u4ee5\u4fbf\u8c03\u8282\u5360\u7a7a\u6bd4\u5e76\u4fdd\u6301\u6240\u9700\u7684\u8f93\u51fa\u7535\u538b\u503c\u3002<\/font>

\n

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\n\u9664\u4e86\u8fd9\u4e9b\u57fa\u672c\u529f\u80fd\u4e4b\u5916\uff0c\u96c6\u6210\u5f0f\u8bbe\u8ba1\u8fd8\u5305\u62ec\u53ef\u9009\u7684\u4fdd\u62a4\u529f\u80fd\uff0c\u9488\u5bf9\u8d85\u6e29\u3001\u8f93\u51fa\u77ed\u8def\u3001\u5f00\u8def\u8d1f\u8f7d\u6761\u4ef6\u548c\u8f93\u5165\u8fc7\u6d41\u7b49\u60c5\u51b5\u63d0\u4f9b\u4fdd\u62a4\u3002<\/font>

\n

\n

\n\u5bf9\u57fa\u672c\u7535\u8def\u7684\u5e38\u89c1\u6539\u8fdb\u662f\u4f7f\u7528\u7b2c\u4e8c\u4e2a MOSFET \u66ff\u6362\u4e8c\u6781\u7ba1\u3002\u7b2c\u4e8c\u4e2a MOSFET \u5145\u5f53\u540c\u6b65\u6574\u6d41\u5668\uff0c\u5728\u7535\u6e90\u5f00\u5173\u5173\u95ed\u65f6\u6253\u5f00\u3002\u5176\u8f83\u4f4e\u7684\u7535\u538b\u964d\u51cf\u5c11\u4e86\u529f\u7387\u8017\u6563\uff0c\u540c\u65f6\u63d0\u9ad8\u4e86\u7a33\u538b\u5668\u7684\u6548\u7387\u3002<\/font>

\n

\n

\n\u5728\u7535\u6c60\u4f9b\u7535\u7684\u8bbe\u5907\u4e2d\uff0c\u66f4\u9ad8\u7684\u6548\u7387\u5c31\u7b49\u4e8e\u66f4\u957f\u7684\u7535\u6c60\u5bff\u547d\uff0c\u56e0\u800c\u540c\u6b65\u8bbe\u8ba1\u662f\u4e00\u5927\u4f18\u52bf\u3002\u6b64\u5916\uff0c\u4fbf\u643a\u5f0f\u8bbe\u5907\u548c\u53ef\u7a7f\u6234\u8bbe\u5907\u901a\u5e38\u5728\u7a7a\u95f4\u4e0a\u53d7\u5230\u9650\u5236\uff0c\u56e0\u6b64\u9762\u5411\u8fd9\u4e9b\u5e94\u7528\u7684\u5347\u538b\u8f6c\u6362\u5668\u5177\u6709\u5f88\u9ad8\u7684\u96c6\u6210\u5ea6\u3002\u5c06\u7535\u6e90\u5143\u5668\u4ef6\u5305\u62ec\u5728\u5c01\u88c5\u4e2d\uff0c\u5c06\u4f1a\u9650\u5236\u5176\u4f9b\u6d41\u80fd\u529b\uff0c\u4f46\u5728\u7535\u6c60\u4f9b\u7535\u8bbe\u5907\u7684\u8bbe\u8ba1\u4e2d\uff0c\u8fd9\u4e2a\u7f3a\u70b9\u662f\u53ef\u4ee5\u63a5\u53d7\u7684\u3002\u5f88\u591a\u6b64\u7c7b\u5e94\u7528\u957f\u65f6\u95f4\u5904\u4e8e\u5173\u65ad\u6a21\u5f0f\uff0c\u56e0\u800c\u8d85\u4f4e\u7684\u9759\u6001\u7535\u6d41\u6d88\u8017\u53d8\u5f97\u81f3\u5173\u91cd\u8981\u3002<\/font>

\n

\n

\nTexas Instruments \u63d0\u4f9b\u7684 TPS610993YFFT \u5c31\u662f\u4f4e\u529f\u8017\u5347\u538b\u7a33\u538b\u5668\u7684\u4e00\u4e2a\u4f8b\u5b50\uff08\u56fe 2\uff09\u3002\u8fd9\u662f\u4e00\u79cd\u540c\u6b65\u5668\u4ef6\uff0c\u5176\u9759\u6001\u7535\u6d41\u4ec5 1µA\uff0c\u4f46\u80fd\u63d0\u4f9b\u9ad8\u8fbe 800 \u6beb\u5b89 (mA) \u7684\u7535\u6d41\uff0c\u5e76\u5728\u4f4e\u81f3 0.7 \u4f0f\u7279\u7684\u8f93\u5165\u7535\u538b\u4e0b\u4ea7\u751f 3.0 \u4f0f\u7279\u7684\u8f93\u51fa\u7535\u538b\u3002\u8be5\u5668\u4ef6\u7684\u8bbe\u8ba1\u76ee\u7684\u662f\u5728\u8f7b\u8d1f\u8f7d\u6761\u4ef6\u4e0b\u6700\u5927\u7a0b\u5ea6\u5730\u63d0\u9ad8\u5de5\u4f5c\u6548\u7387\u3002\u5b83\u53ef\u4e0e\u78b1\u6027\u7535\u6c60\u6216\u5145\u7535\u7535\u6c60\uff08\u4f8b\u5982 NiMH \u7535\u6c60\u6216\u9502\u79bb\u5b50\u7535\u6c60\uff09\u914d\u5408\u4f7f\u7528\u3002<\/font>
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\n\t\"\"<\/font><\/div>\n

\u56fe 2\uff1a TPS61099x \u7cfb\u5217\u80fd\u591f\u4ece 0.7 \u4f0f\u7279\u7684\u8f93\u5165\u7535\u538b\u63d0\u4f9b\u9ad8\u8fbe 5.5 \u4f0f\u7279\u7684\u8f93\u51fa\u7535\u538b\u3002\uff08\u56fe\u7247\u6765\u6e90\uff1aTexas Instruments\uff09<\/font>

\n

\n

\nTPS610993 \u5c06\u7535\u6e90\u5f00\u5173\u548c\u540c\u6b65\u6574\u6d41\u5668\u96c6\u6210\u5230 6 \u710a\u7403\u7684\u6676\u5706\u7ea7\u82af\u7247\u5c3a\u5bf8\u5c01\u88c5 (WCSP) \u4e2d\uff0c\u5c3a\u5bf8\u4ec5\u4e3a 1.23 \u6beb\u7c73 x 0.88 \u6beb\u7c73\u3002\u7531\u4e8e\u5c3a\u5bf8\u5c0f\u5de7\uff0c\u5b83\u975e\u5e38\u9002\u7528\u4e8e\u5149\u5b66\u5fc3\u7387\u76d1\u6d4b\u4eea\u3001\u5b58\u50a8\u5668\u6db2\u6676\u663e\u793a\u5c4f (LCD) \u504f\u7f6e\u9a71\u52a8\u5668\uff0c\u4ee5\u53ca\u7c7b\u4f3c\u7684\u7a7a\u95f4\u53d7\u9650\u7684\u5e94\u7528\u3002\u8be5\u5668\u4ef6\u662f TPS61099x \u7cfb\u5217\u4ea7\u54c1\u7684\u6210\u5458\uff0c\u8f93\u51fa\u7535\u538b\u5728 1.8 \u4f0f\u7279\u81f3 5.5 \u4f0f\u7279\u4e4b\u95f4\u3002<\/font>

\n

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\n\u5728\u4e3a\u667a\u80fd\u624b\u673a\u6444\u50cf\u5934\u95ea\u5149\u706f\u6216\u7535\u6c60\u4f9b\u7535\u7684 LED \u706f\u4ea7\u751f\u66f4\u9ad8\u7684\u7535\u538b\u65b9\u9762\uff0cMicrochip Technology \u7684 MCP1665 \u91c7\u7528\u4e86\u4e0d\u540c\u7684\u65b9\u6cd5\uff1a\u5b83\u96c6\u6210\u4e86 36 \u4f0f\u7279\u3001100 \u6beb\u6b27 (m\u2126) \u7684 NMOS \u7535\u6e90\u5f00\u5173\uff0c\u4f46\u5728\u975e\u540c\u6b65\u62d3\u6251\u4e2d\u4f7f\u7528\u4e86\u5916\u90e8\u4e8c\u6781\u7ba1\u3002<\/font>

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\n\t\"\"<\/font><\/div>\n

\u56fe 3\uff1a Microchip \u7684 MCP1665 \u80fd\u591f\u4ece\u9502\u79bb\u5b50\u3001NiMH \u6216 NiCd \u7535\u6c60\u4ea7\u751f\u9ad8\u8fbe 32 \u4f0f\u7684\u7535\u538b\u3002\uff08\u56fe\u7247\u6765\u6e90\uff1aMicrochip Technology\uff09<\/font>

\n

\n

\n\u8be5\u5668\u4ef6\u80fd\u591f\u4ece 5 \u4f0f\u7535\u6e90\u63d0\u4f9b\u9ad8\u8fbe 1000 \u6beb\u5b89\u7684\u7535\u6d41\uff0c\u5e76\u5177\u5907\u591a\u79cd\u7279\u6027\uff0c\u5305\u62ec\u53d7\u63a7\u542f\u52a8\u7535\u538b\u3001\u5de5\u4f5c\u6a21\u5f0f\u9009\u62e9\u3001500 \u5343\u8d6b\u5179 (kHz) \u7684\u5f00\u5173\u9891\u7387\uff1b\u5cf0\u503c\u7535\u6d41\u6a21\u5f0f\u67b6\u6784\u53ef\u5728\u5e7f\u6cdb\u8d1f\u8f7d\u8303\u56f4\u5185\u5b9e\u73b0\u9ad8\u6548\u7387\u3002<\/font>

\n

\n

\n\u5728\u4e00\u4e9b\u5347\u538b\u5e94\u7528\u4e2d\uff0c\u5c06\u8f93\u51fa\u7535\u538b\u7ef4\u6301\u5728\u8bbe\u5b9a\u503c\u5e76\u975e\u4e3b\u8981\u8bbe\u8ba1\u76ee\u6807\u3002\u5728 LED \u80cc\u5149\u9a71\u52a8\u4e2d\uff0c\u6240\u9700\u7684 LED \u4eae\u5ea6\u662f\u901a\u8fc7 LED \u706f\u4e32\u7684\u7535\u6d41\u7684\u51fd\u6570\uff0c\u56e0\u6b64\uff0c\u6d41\u7ecf\u5206\u6d41\u7535\u963b\u5668\u7684\u7535\u6d41\u5f62\u6210\u4e86\u63a7\u5236\u5668\u7684\u53cd\u9988\u7535\u538b\uff0c\u5e76\u51b3\u5b9a\u4e86\u5347\u538b\u7535\u538b\u3002Diodes Incorporated \u4f9b\u5e94\u7684 AP3019AKTR-G1 \u662f\u7ecf\u8fc7\u4f18\u5316\u7684\u5347\u538b\u8f6c\u6362\u5668\u7684\u4e00\u4e2a\u4f8b\u5b50\uff0c\u9002\u5408\u5728\u80cc\u5149\u5e94\u7528\u4e2d\u9a71\u52a8\u6700\u591a 8 \u4e2a LED \u7684\u706f\u4e32\uff08\u56fe 4\uff09\u3002<\/font>
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\n\t\"\"<\/font><\/div>\n

\u56fe 4\uff1a AP3019A \u9a71\u52a8\u5668\u7684\u5178\u578b\u5f00\u5173\u9891\u7387\u4e3a 1.2 MHz\uff0c\u5305\u62ec\u53ef\u63a7\u5236 LED \u80cc\u5149\u706f\u4e32\u4eae\u5ea6\u7684\u4e13\u95e8\u529f\u80fd\u3002\uff08\u56fe\u7247\u6765\u6e90\uff1a Diodes Incorporated\uff09<\/font>

\n

\n

\n\u8be5\u5668\u4ef6\u4e13\u95e8\u9488\u5bf9\u7a7a\u95f4\u53d7\u9650\u7684\u5e94\u7528\u8fdb\u884c\u4e86\u4f18\u5316\uff0c\u5185\u90e8\u5305\u62ec\u7535\u6e90\u5f00\u5173\u548c\u4e8c\u6781\u7ba1\uff0c\u5f00\u5173\u9891\u7387\u4e3a 1.2 MHz\uff0c\u5141\u8bb8\u4f7f\u7528\u5fae\u578b\u5916\u90e8\u5143\u5668\u4ef6\u3002AP3019A \u91c7\u7528 SOT-23-6 \u5c01\u88c5\uff0c\u80fd\u591f\u63d0\u4f9b\u9ad8\u8fbe 550 mA \u7684\u7535\u6d41\u3002<\/font>

\n

\n

\nCTRL \u5f15\u811a\u662f\u4e13\u7528\u7684\u5173\u65ad\u548c\u8c03\u5149\u8f93\u5165\uff1a\u5c06\u8be5\u5f15\u811a\u8fde\u63a5\u5230 1.8 \u4f0f\u6216\u66f4\u9ad8\u7684\u7535\u538b\u53ef\u542f\u7528\u5668\u4ef6\uff1b\u8fde\u63a5\u5230 0.5 \u4f0f\u6216\u66f4\u4f4e\u7684\u7535\u538b\u53ef\u7981\u7528\u5668\u4ef6\uff1b\u5e94\u7528\u8109\u51b2\u5bbd\u5ea6\u8c03\u5236 (PWM) \u4fe1\u53f7\u53ef\u5b9e\u73b0 LED \u4eae\u5ea6\u63a7\u5236\u3002<\/font>

\n

\n

\n\u91c7\u7528\u4ee5\u4e0b\u8bbe\u8ba1\u6280\u5de7\u6765\u4f18\u5316\u6548\u7387<\/font><\/span>

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\n

\n

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\n

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\n

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\n

\n

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\n

\n

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\n

\n

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\n

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\n

\n

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<\/p>\n

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    \n

    \n

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    \n

    \n

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