{"id":7393,"date":"2013-11-18T02:56:51","date_gmt":"2013-11-18T02:56:51","guid":{"rendered":"http:\/\/www.yptk.cn\/index.php\/2013\/11\/18\/%e6%89%8b%e6%9c%ba%e9%94%82%e7%a6%bb%e5%ad%90%e7%94%b5%e6%b1%a0%e4%bf%9d%e6%8a%a4%e7%94%b5%e8%b7%af%e5%8e%9f%e7%90%86%e5%88%86%e6%9e%90\/"},"modified":"2013-11-18T02:56:51","modified_gmt":"2013-11-18T02:56:51","slug":"%e6%89%8b%e6%9c%ba%e9%94%82%e7%a6%bb%e5%ad%90%e7%94%b5%e6%b1%a0%e4%bf%9d%e6%8a%a4%e7%94%b5%e8%b7%af%e5%8e%9f%e7%90%86%e5%88%86%e6%9e%90","status":"publish","type":"post","link":"http:\/\/yptk.cn\/index.php\/2013\/11\/18\/%e6%89%8b%e6%9c%ba%e9%94%82%e7%a6%bb%e5%ad%90%e7%94%b5%e6%b1%a0%e4%bf%9d%e6%8a%a4%e7%94%b5%e8%b7%af%e5%8e%9f%e7%90%86%e5%88%86%e6%9e%90\/","title":{"rendered":"\u624b\u673a\u9502\u79bb\u5b50\u7535\u6c60\u4fdd\u62a4\u7535\u8def\u539f\u7406\u5206\u6790"},"content":{"rendered":"

      <\/span><\/span>\u7531\u4e8e\u9502\u79bb\u5b50\u7535\u6c60\u7684\u7279\u6027\u4e0e\u5176\u5b83\u53ef\u5145\u7535\u7535\u6c60\u4e0d\u540c\uff0c\u5185\u90e8\u901a\u5e38\u90fd\u5e26\u6709\u4e00\u5757\u7535\u8def\u677f\uff0c\u4e0d\u5c11\u4eba\u5bf9\u8be5\u7535\u8def\u7684\u4f5c\u7528\u4e0d\u4e86\u89e3\uff08\u6709\u4e9b\u4eba\u53ef\u80fd\u8fd8\u4e0d\u77e5\u9053\u9502\u7535\u91cc\u6709\u4fdd\u62a4\u7535\u8def\uff09\uff0c\u4e0b\u9762\u5c06\u5bf9\u9502\u79bb\u5b50\u7535\u6c60\u7684\u7279\u70b9\u53ca\u5176\u4fdd\u62a4\u7535\u8def\u5de5\u4f5c\u539f\u7406\u8fdb\u884c\u9610\u8ff0\u3002<\/span><\/p>\n

\n\t    <\/span><\/span>\u9502\u7535\u6c60\u5206\u4e3a\u4e00\u6b21\u7535\u6c60\u548c\u4e8c\u6b21\u7535\u6c60\u4e24\u7c7b\uff0c\u76ee\u524d\u5728\u624b\u673a\u91cc\u7684\u5907\u7528\u7535\u6c60\u56e0\u8017\u7535\u5c0f\u4e3b\u8981\u4f7f\u7528\u4e0d\u53ef\u5145\u7535\u7684\u4e00\u6b21\u9502\u7535\u6c60\uff0c\u800c\u5728\u624b\u673a\u4e3b\u7535\u6c60\u56e0\u8017\u7535\u91cf\u8f83\u5927\u5219\u4f7f\u7528\u53ef\u5145\u7535\u7684\u4e8c\u6b21\u7535\u6c60\uff0c\u5373\u9502\u79bb\u5b50\u7535\u6c60\u3002<\/span> <\/span>\n<\/p>\n

\n\t    <\/span><\/span>\u4e0e\u954d\u9549\u548c\u954d\u6c22\u7535\u6c60\u76f8\u6bd4\uff0c\u9502\u79bb\u5b50\u7535\u6c60\u5177\u5907\u4ee5\u4e0b\u51e0\u4e2a\u4f18\u70b9\uff1a<\/span> <\/span>\n<\/p>\n

\n\t    <\/span>1<\/span>\u3001\u7535\u538b\u9ad8\uff0c\u5355\u8282\u9502\u79bb\u5b50\u7535\u6c60\u7684\u7535\u538b\u53ef\u8fbe\u5230<\/span>3.6V<\/span>\uff0c\u8fdc\u9ad8\u4e8e\u954d\u9549\u548c\u954d\u6c22\u7535\u6c60\u7684<\/span>1.2V<\/span>\u7535\u538b\u3002<\/span> <\/span>\n<\/p>\n

\n\t    <\/span>2<\/span>\u3001\u5bb9\u91cf\u5bc6\u5ea6\u5927\uff0c\u5176\u5bb9\u91cf\u5bc6\u5ea6\u662f\u954d\u6c22\u7535\u6c60\u6216\u954d\u9549\u7535\u6c60\u7684<\/span>1.5-2.5<\/span>\u500d\u3002<\/span> <\/span>\n<\/p>\n

\n\t    <\/span>3<\/span>\u3001\u8377\u7535\u4fdd\u6301\u80fd\u529b\u5f3a\uff08\u5373\u81ea\u653e\u7535\u5c0f\uff09\uff0c\u5728\u653e\u7f6e\u5f88\u957f\u65f6\u95f4\u540e\u5176\u5bb9\u91cf\u635f\u5931\u4e5f\u5f88\u5c0f\u3002<\/span> <\/span>\n<\/p>\n

\n\t    <\/span>4<\/span>\u3001\u5bff\u547d\u957f\uff0c\u6b63\u5e38\u4f7f\u7528\u5176\u5faa\u73af\u5bff\u547d\u53ef\u8fbe\u5230<\/span>500<\/span>\u6b21\u4ee5\u4e0a\u3002<\/span> <\/span>\n<\/p>\n

\n\t    <\/span>5<\/span>\u3001\u6ca1\u6709\u8bb0\u5fc6\u6548\u5e94\uff0c\u5728\u5145\u7535\u524d\u4e0d\u5fc5\u5c06\u5269\u4f59\u7535\u91cf\u653e\u7a7a\uff0c\u4f7f\u7528\u65b9\u4fbf\u3002<\/span>\n<\/p>\n

\n\t    <\/span><\/span>\u7531\u4e8e\u9502\u79bb\u5b50\u7535\u6c60\u7684\u5316\u5b66\u7279\u6027\uff0c\u5728\u6b63\u5e38\u4f7f\u7528\u8fc7\u7a0b\u4e2d\uff0c\u5176\u5185\u90e8\u8fdb\u884c\u7535\u80fd\u4e0e\u5316\u5b66\u80fd\u76f8\u4e92\u8f6c\u5316\u7684\u5316\u5b66\u6b63\u53cd\u5e94\uff0c\u4f46\u5728\u67d0\u4e9b\u6761\u4ef6\u4e0b\uff0c\u5982\u5bf9\u5176\u8fc7\u5145\u7535\u3001\u8fc7\u653e\u7535\u548c\u8fc7\u7535\u6d41\u5c06\u4f1a\u5bfc\u81f4\u7535\u6c60\u5185\u90e8\u53d1\u751f\u5316\u5b66\u526f\u53cd\u5e94<\/span>,<\/span>\u8be5\u526f\u53cd\u5e94\u52a0\u5267\u540e\uff0c\u4f1a\u4e25\u91cd\u5f71\u54cd\u7535\u6c60\u7684\u6027\u80fd\u4e0e\u4f7f\u7528\u5bff\u547d\uff0c\u5e76\u53ef\u80fd\u4ea7\u751f\u5927\u91cf\u6c14\u4f53\uff0c\u4f7f\u7535\u6c60\u5185\u90e8\u538b\u529b\u8fc5\u901f\u589e\u5927\u540e\u7206\u70b8\u800c\u5bfc\u81f4\u5b89\u5168\u95ee\u9898\uff0c\u56e0\u6b64\u6240\u6709\u7684\u9502\u79bb\u5b50\u7535\u6c60\u90fd\u9700\u8981\u4e00\u4e2a\u4fdd\u62a4\u7535\u8def\uff0c\u7528\u4e8e\u5bf9\u7535\u6c60\u7684\u5145\u3001\u653e\u7535\u72b6\u6001\u8fdb\u884c\u6709\u6548\u76d1\u6d4b\uff0c\u5e76\u5728\u67d0\u4e9b\u6761\u4ef6\u4e0b\u5173\u65ad\u5145\u3001\u653e\u7535\u56de\u8def\u4ee5\u9632\u6b62\u5bf9\u7535\u6c60\u53d1\u751f\u635f\u5bb3\u3002<\/span> <\/span>\n<\/p>\n

\n\t    <\/span><\/span>\u4e0b\u56fe\u4e3a\u4e00\u4e2a\u5178\u578b\u7684\u9502\u79bb\u5b50\u7535\u6c60\u4fdd\u62a4\u7535\u8def\u539f\u7406\u56fe\u3002<\/span>  <\/span><\/span>\n<\/p>\n

\n\t        <\/span><\/span><\/span>\"\"\n<\/p>\n

\n\t<\/span>\n<\/p>\n

\n\t<\/span>\n<\/p>\n

\n\t<\/span>\n<\/p>\n

\n\t    <\/span><\/span>\u5982\u4e0a\u56fe\u6240\u793a\uff0c\u8be5\u4fdd\u62a4\u56de\u8def\u7531\u4e24\u4e2a<\/span>MOSFET<\/span>\uff08<\/span>V1<\/span>\u3001<\/span>V2<\/span>\uff09\u548c<\/span> \u4e00\u4e2a\u63a7\u5236<\/span>IC<\/span>\uff08<\/span>N1<\/span>\uff09\u5916\u52a0\u4e00\u4e9b\u963b\u5bb9\u5143\u4ef6\u6784\u6210\u3002\u63a7\u5236<\/span>IC<\/span>\u8d1f\u8d23\u76d1\u6d4b\u7535\u6c60\u7535\u538b\u4e0e\u56de\u8def\u7535\u6d41\uff0c\u5e76\u63a7\u5236<\/span> \u4e24\u4e2a<\/span>MOSFET<\/span>\u7684\u6805\u6781\uff0c<\/span>MOSFET<\/span>\u5728\u7535\u8def\u4e2d\u8d77\u5f00\u5173\u4f5c\u7528\uff0c\u5206\u522b\u63a7\u5236\u7740\u5145\u7535\u56de\u8def\u4e0e\u653e\u7535\u56de\u8def\u7684\u5bfc\u901a\u4e0e\u5173\u65ad\uff0c<\/span>C3<\/span>\u4e3a\u5ef6\u65f6\u7535\u5bb9\uff0c\u8be5\u7535\u8def\u5177\u6709\u8fc7\u5145\u7535\u4fdd\u62a4\u3001\u8fc7\u653e\u7535\u4fdd\u62a4\u3001\u8fc7\u7535\u6d41\u4fdd\u62a4\u4e0e\u77ed\u8def\u4fdd\u62a4\u529f\u80fd\uff0c\u5176\u5de5\u4f5c\u539f\u7406\u5206\u6790\u5982\u4e0b\uff1a<\/span>\n<\/p>\n

\n\t    <\/span>1<\/span>\u3001\u6b63\u5e38\u72b6\u6001<\/span> <\/span>\n<\/p>\n

\n\t    <\/span><\/span>\u5728\u6b63\u5e38\u72b6\u6001\u4e0b\u7535\u8def\u4e2d<\/span>N1<\/span>\u7684\u201c<\/span>CO<\/span>\u201d\u4e0e\u201c<\/span>DO<\/span>\u201d\u811a\u90fd\u8f93\u51fa\u9ad8\u7535\u538b\uff0c\u4e24\u4e2a<\/span>MOSFET<\/span>\u90fd\u5904\u4e8e\u5bfc\u901a\u72b6\u6001\uff0c\u7535\u6c60\u53ef\u4ee5\u81ea\u7531\u5730\u8fdb\u884c\u5145\u7535\u548c\u653e\u7535\uff0c\u7531\u4e8e<\/span>MOSFET<\/span>\u7684\u5bfc\u901a\u963b\u6297\u5f88\u5c0f\uff0c\u901a\u5e38\u5c0f\u4e8e<\/span>30<\/span>\u6beb\u6b27\uff0c\u56e0\u6b64\u5176\u5bfc\u901a\u7535\u963b\u5bf9\u7535\u8def\u7684\u6027\u80fd\u5f71\u54cd\u5f88\u5c0f\u3002<\/span> <\/span>\n<\/p>\n

\n\t    <\/span><\/span>\u6b64\u72b6\u6001\u4e0b\u4fdd\u62a4\u7535\u8def\u7684\u6d88\u8017\u7535\u6d41\u4e3a\u03bc<\/span>A<\/span>\u7ea7\uff0c\u901a\u5e38\u5c0f\u4e8e<\/span>7<\/span>\u03bc<\/span>A<\/span>\u3002<\/span> <\/span>\n<\/p>\n

\n\t    <\/span>2<\/span>\u3001\u8fc7\u5145\u7535\u4fdd\u62a4<\/span> <\/span>\n<\/p>\n

\n\t    <\/span><\/span>\u9502\u79bb\u5b50\u7535\u6c60\u8981\u6c42\u7684\u5145\u7535\u65b9\u5f0f\u4e3a\u6052\u6d41<\/span>\/<\/span>\u6052\u538b\uff0c\u5728\u5145\u7535\u521d\u671f\uff0c\u4e3a\u6052\u6d41\u5145\u7535\uff0c\u968f\u7740\u5145\u7535\u8fc7\u7a0b\uff0c\u7535\u538b\u4f1a\u4e0a\u5347\u5230<\/span>4.2V(<\/span>\u6839\u636e\u6b63\u6781\u6750\u6599\u4e0d\u540c\uff0c\u6709\u7684\u7535\u6c60\u8981\u6c42\u6052\u538b\u503c\u4e3a<\/span>4.1V)<\/span>\uff0c\u8f6c\u4e3a\u6052\u538b\u5145\u7535\uff0c\u76f4\u81f3\u7535\u6d41\u8d8a\u6765\u8d8a\u5c0f\u3002<\/span> <\/span>\n<\/p>\n

\n\t    <\/span><\/span>\u7535\u6c60\u5728\u88ab\u5145\u7535\u8fc7\u7a0b\u4e2d\uff0c\u5982\u679c\u5145\u7535\u5668\u7535\u8def\u5931\u53bb\u63a7\u5236\uff0c\u4f1a\u4f7f\u7535\u6c60\u7535\u538b\u8d85\u8fc7<\/span>4.2V<\/span>\u540e\u7ee7\u7eed\u6052\u6d41\u5145\u7535\uff0c\u6b64\u65f6\u7535\u6c60\u7535\u538b\u4ecd\u4f1a\u7ee7\u7eed\u4e0a\u5347\uff0c\u5f53\u7535\u6c60\u7535\u538b\u88ab\u5145\u7535\u81f3\u8d85\u8fc7<\/span>4.3V<\/span>\u65f6\uff0c\u7535\u6c60\u7684\u5316\u5b66\u526f\u53cd\u5e94\u5c06\u52a0\u5267\uff0c\u4f1a\u5bfc\u81f4\u7535\u6c60\u635f\u574f\u6216\u51fa\u73b0\u5b89\u5168\u95ee\u9898\u3002<\/span> <\/span>\n<\/p>\n

\n\t    <\/span><\/span>\u5728\u5e26\u6709\u4fdd\u62a4\u7535\u8def\u7684\u7535\u6c60\u4e2d\uff0c\u5f53\u63a7\u5236<\/span>IC<\/span>\u68c0\u6d4b\u5230\u7535\u6c60\u7535\u538b\u8fbe\u5230<\/span>4.28V<\/span>\uff08\u8be5\u503c\u7531\u63a7\u5236<\/span>IC<\/span>\u51b3\u5b9a\uff0c\u4e0d\u540c\u7684<\/span>IC<\/span>\u6709\u4e0d\u540c\u7684\u503c\uff09\u65f6\uff0c\u5176\u201c<\/span>CO<\/span>\u201d\u811a\u5c06\u7531\u9ad8\u7535\u538b\u8f6c\u53d8\u4e3a\u96f6\u7535\u538b\uff0c\u4f7f<\/span>V2<\/span>\u7531\u5bfc\u901a\u8f6c\u4e3a\u5173\u65ad\uff0c\u4ece\u800c\u5207\u65ad\u4e86\u5145\u7535\u56de\u8def\uff0c\u4f7f\u5145\u7535\u5668\u65e0\u6cd5\u518d\u5bf9\u7535\u6c60\u8fdb\u884c\u5145\u7535\uff0c\u8d77\u5230\u8fc7\u5145\u7535\u4fdd\u62a4\u4f5c\u7528\u3002\u800c\u6b64\u65f6\u7531\u4e8e<\/span>V2<\/span>\u81ea\u5e26\u7684\u4f53\u4e8c\u6781\u7ba1<\/span>VD2<\/span>\u7684\u5b58\u5728\uff0c\u7535\u6c60\u53ef\u4ee5\u901a\u8fc7\u8be5\u4e8c\u6781\u7ba1\u5bf9\u5916\u90e8\u8d1f\u8f7d\u8fdb\u884c\u653e\u7535\u3002\u5728\u63a7\u5236<\/span>IC<\/span>\u68c0\u6d4b\u5230\u7535\u6c60\u7535\u538b\u8d85\u8fc7<\/span>4.28V<\/span>\u81f3\u53d1\u51fa\u5173\u65ad<\/span>V2<\/span>\u4fe1\u53f7\u4e4b\u95f4\uff0c\u8fd8\u6709\u4e00\u6bb5\u5ef6\u65f6\u65f6\u95f4\uff0c\u8be5\u5ef6\u65f6\u65f6\u95f4\u7684\u957f\u77ed\u7531<\/span>C3<\/span>\u51b3\u5b9a\uff0c\u901a\u5e38\u8bbe\u4e3a<\/span>1<\/span>\u79d2\u5de6\u53f3\uff0c\u4ee5\u907f\u514d\u56e0\u5e72\u6270\u800c\u9020\u6210\u8bef\u5224\u65ad\u3002<\/span> <\/span>\n<\/p>\n

\n\t3<\/span>\u3001\u8fc7\u653e\u7535\u4fdd\u62a4<\/span> <\/span>\n<\/p>\n

\n\t    <\/span><\/span>\u7535\u6c60\u5728\u5bf9\u5916\u90e8\u8d1f\u8f7d\u653e\u7535\u8fc7\u7a0b\u4e2d\uff0c\u5176\u7535\u538b\u4f1a\u968f\u7740\u653e\u7535\u8fc7\u7a0b\u9010\u6e10\u964d\u4f4e\uff0c\u5f53\u7535\u6c60\u7535\u538b\u964d\u81f3<\/span>2.5V<\/span>\u65f6\uff0c\u5176\u5bb9\u91cf\u5df2\u88ab\u5b8c\u5168\u653e\u5149\uff0c\u6b64\u65f6\u5982\u679c\u8ba9\u7535\u6c60\u7ee7\u7eed\u5bf9\u8d1f\u8f7d\u653e\u7535\uff0c\u5c06\u9020\u6210\u7535\u6c60\u7684\u6c38\u4e45\u6027\u635f\u574f\u3002<\/span> <\/span>\n<\/p>\n

\n\t    <\/span><\/span>\u5728\u7535\u6c60\u653e\u7535\u8fc7\u7a0b\u4e2d\uff0c\u5f53\u63a7\u5236<\/span>IC<\/span>\u68c0\u6d4b\u5230\u7535\u6c60\u7535\u538b\u4f4e\u4e8e<\/span>2.3V<\/span>\uff08\u8be5\u503c\u7531\u63a7\u5236<\/span>IC<\/span>\u51b3\u5b9a\uff0c\u4e0d\u540c\u7684<\/span>IC<\/span>\u6709\u4e0d\u540c\u7684\u503c\uff09\u65f6\uff0c\u5176\u201c<\/span>DO<\/span>\u201d\u811a\u5c06\u7531\u9ad8\u7535\u538b\u8f6c\u53d8\u4e3a\u96f6\u7535\u538b\uff0c\u4f7f<\/span>V1<\/span>\u7531\u5bfc\u901a\u8f6c\u4e3a\u5173\u65ad\uff0c\u4ece\u800c\u5207\u65ad\u4e86\u653e\u7535\u56de\u8def\uff0c\u4f7f\u7535\u6c60\u65e0\u6cd5\u518d\u5bf9\u8d1f\u8f7d\u8fdb\u884c\u653e\u7535\uff0c\u8d77\u5230\u8fc7\u653e\u7535\u4fdd\u62a4\u4f5c\u7528\u3002\u800c\u6b64\u65f6\u7531\u4e8e<\/span>V1<\/span>\u81ea\u5e26\u7684\u4f53\u4e8c\u6781\u7ba1<\/span>VD1<\/span>\u7684\u5b58\u5728\uff0c\u5145\u7535\u5668\u53ef\u4ee5\u901a\u8fc7\u8be5\u4e8c\u6781\u7ba1\u5bf9\u7535\u6c60\u8fdb\u884c\u5145\u7535\u3002<\/span> <\/span>\n<\/p>\n

\n\t    <\/span><\/span>\u7531\u4e8e\u5728\u8fc7\u653e\u7535\u4fdd\u62a4\u72b6\u6001\u4e0b\u7535\u6c60\u7535\u538b\u4e0d\u80fd\u518d\u964d\u4f4e\uff0c\u56e0\u6b64\u8981\u6c42\u4fdd\u62a4\u7535\u8def\u7684\u6d88\u8017\u7535\u6d41\u6781\u5c0f\uff0c\u6b64\u65f6\u63a7\u5236<\/span>IC<\/span>\u4f1a\u8fdb\u5165\u4f4e\u529f\u8017\u72b6\u6001\uff0c\u6574\u4e2a\u4fdd\u62a4\u7535\u8def\u8017\u7535\u4f1a\u5c0f\u4e8e<\/span>0.1<\/span>\u03bc<\/span>A<\/span>\u3002<\/span> <\/span>\n<\/p>\n

\n\t    <\/span><\/span>\u5728\u63a7\u5236<\/span>IC<\/span>\u68c0\u6d4b\u5230\u7535\u6c60\u7535\u538b\u4f4e\u4e8e<\/span>2.3V<\/span>\u81f3\u53d1\u51fa\u5173\u65ad<\/span>V1<\/span>\u4fe1\u53f7\u4e4b\u95f4\uff0c\u4e5f\u6709\u4e00\u6bb5\u5ef6\u65f6\u65f6\u95f4\uff0c\u8be5\u5ef6\u65f6\u65f6\u95f4\u7684\u957f\u77ed\u7531<\/span>C3<\/span>\u51b3\u5b9a\uff0c\u901a\u5e38\u8bbe\u4e3a<\/span>100<\/span>\u6beb\u79d2\u5de6\u53f3\uff0c\u4ee5\u907f\u514d\u56e0\u5e72\u6270\u800c\u9020\u6210\u8bef\u5224\u65ad\u3002<\/span> <\/span>\n<\/p>\n

\n\t    <\/span>4<\/span>\u3001\u8fc7\u7535\u6d41\u4fdd\u62a4<\/span> <\/span>\n<\/p>\n

\n\t    <\/span><\/span>\u7531\u4e8e\u9502\u79bb\u5b50\u7535\u6c60\u7684\u5316\u5b66\u7279\u6027\uff0c\u7535\u6c60\u751f\u4ea7\u5382\u5bb6\u89c4\u5b9a\u4e86\u5176\u653e\u7535\u7535\u6d41\u6700\u5927\u4e0d\u80fd\u8d85\u8fc7<\/span>2C<\/span>\uff08<\/span>C=<\/span>\u7535\u6c60\u5bb9\u91cf<\/span>\/<\/span>\u5c0f\u65f6\uff09\uff0c\u5f53\u7535\u6c60\u8d85\u8fc7<\/span>2C<\/span>\u7535\u6d41\u653e\u7535\u65f6\uff0c\u5c06\u4f1a\u5bfc\u81f4\u7535\u6c60\u7684\u6c38\u4e45\u6027\u635f\u574f\u6216\u51fa\u73b0\u5b89\u5168\u95ee\u9898\u3002<\/span> <\/span>\n<\/p>\n

\n\t    <\/span><\/span>\u7535\u6c60\u5728\u5bf9\u8d1f\u8f7d\u6b63\u5e38\u653e\u7535\u8fc7\u7a0b\u4e2d\uff0c\u653e\u7535\u7535\u6d41\u5728\u7ecf\u8fc7\u4e32\u8054\u7684<\/span>2<\/span>\u4e2a<\/span>MOSFET<\/span>\u65f6\uff0c\u7531\u4e8e<\/span>MOSFET<\/span>\u7684\u5bfc\u901a\u963b\u6297\uff0c\u4f1a\u5728\u5176\u4e24\u7aef\u4ea7\u751f\u4e00\u4e2a\u7535\u538b\uff0c\u8be5\u7535\u538b\u503c<\/span>U=I*RDS*2, RDS<\/span>\u4e3a\u5355\u4e2a<\/span>MOSFET<\/span>\u5bfc\u901a\u963b\u6297\uff0c\u63a7\u5236<\/span>IC<\/span>\u4e0a\u7684\u201c<\/span>V-<\/span>\u201d\u811a\u5bf9\u8be5\u7535\u538b\u503c\u8fdb\u884c\u68c0\u6d4b\uff0c\u82e5\u8d1f\u8f7d\u56e0\u67d0\u79cd\u539f\u56e0\u5bfc\u81f4\u5f02\u5e38\uff0c\u4f7f\u56de\u8def\u7535\u6d41\u589e\u5927\uff0c\u5f53\u56de\u8def\u7535\u6d41\u5927\u5230\u4f7f<\/span>U>0.1V<\/span>\uff08\u8be5\u503c\u7531\u63a7\u5236<\/span>IC<\/span>\u51b3\u5b9a\uff0c\u4e0d\u540c\u7684<\/span>IC<\/span>\u6709\u4e0d\u540c\u7684\u503c\uff09\u65f6\uff0c\u5176\u201c<\/span>DO<\/span>\u201d\u811a\u5c06\u7531\u9ad8\u7535\u538b\u8f6c\u53d8\u4e3a\u96f6\u7535\u538b\uff0c\u4f7f<\/span>V1<\/span>\u7531\u5bfc\u901a\u8f6c\u4e3a\u5173\u65ad\uff0c\u4ece\u800c\u5207\u65ad\u4e86\u653e\u7535\u56de\u8def\uff0c\u4f7f\u56de\u8def\u4e2d\u7535\u6d41\u4e3a\u96f6\uff0c\u8d77\u5230\u8fc7\u7535\u6d41\u4fdd\u62a4\u4f5c\u7528\u3002<\/span> <\/span>\n<\/p>\n

\n\t    <\/span><\/span>\u5728\u63a7\u5236<\/span>IC<\/span>\u68c0\u6d4b\u5230\u8fc7\u7535\u6d41\u53d1\u751f\u81f3\u53d1\u51fa\u5173\u65ad<\/span>V1<\/span>\u4fe1\u53f7\u4e4b\u95f4\uff0c\u4e5f\u6709\u4e00\u6bb5\u5ef6\u65f6\u65f6\u95f4\uff0c\u8be5\u5ef6\u65f6\u65f6\u95f4\u7684\u957f\u77ed\u7531<\/span>C3<\/span>\u51b3\u5b9a\uff0c\u901a\u5e38\u4e3a<\/span>13<\/span>\u6beb\u79d2\u5de6\u53f3\uff0c\u4ee5\u907f\u514d\u56e0\u5e72\u6270\u800c\u9020\u6210\u8bef\u5224\u65ad\u3002<\/span> <\/span>\n<\/p>\n

\n\t    <\/span><\/span>\u5728\u4e0a\u8ff0\u63a7\u5236\u8fc7\u7a0b\u4e2d\u53ef\u77e5\uff0c\u5176\u8fc7\u7535\u6d41\u68c0\u6d4b\u503c\u5927\u5c0f\u4e0d\u4ec5\u53d6\u51b3\u4e8e\u63a7\u5236<\/span>IC<\/span>\u7684\u63a7\u5236\u503c\uff0c\u8fd8\u53d6\u51b3\u4e8e<\/span>MOSFET<\/span>\u7684\u5bfc\u901a\u963b\u6297\uff0c\u5f53<\/span>MOSFET<\/span>\u5bfc\u901a\u963b\u6297\u8d8a\u5927\u65f6\uff0c\u5bf9\u540c\u6837\u7684\u63a7\u5236<\/span>IC<\/span>\uff0c\u5176\u8fc7\u7535\u6d41\u4fdd\u62a4\u503c\u8d8a\u5c0f\u3002<\/span> <\/span>\n<\/p>\n

\n\t    <\/span>5<\/span>\u3001\u77ed\u8def\u4fdd\u62a4<\/span> <\/span>\n<\/p>\n

\n\t    <\/span><\/span>\u7535\u6c60\u5728\u5bf9\u8d1f\u8f7d\u653e\u7535\u8fc7\u7a0b\u4e2d\uff0c\u82e5\u56de\u8def\u7535\u6d41\u5927\u5230\u4f7f<\/span>U>0.9V<\/span>\uff08\u8be5\u503c\u7531\u63a7\u5236<\/span>IC<\/span>\u51b3\u5b9a\uff0c\u4e0d\u540c\u7684<\/span>IC<\/span>\u6709\u4e0d\u540c\u7684\u503c\uff09\u65f6\uff0c\u63a7\u5236<\/span>IC<\/span>\u5219\u5224\u65ad\u4e3a\u8d1f\u8f7d\u77ed\u8def\uff0c\u5176\u201c<\/span>DO<\/span>\u201d\u811a\u5c06\u8fc5\u901f\u7531\u9ad8\u7535\u538b\u8f6c\u53d8\u4e3a\u96f6\u7535\u538b\uff0c\u4f7f<\/span>V1<\/span>\u7531\u5bfc\u901a\u8f6c\u4e3a\u5173\u65ad\uff0c\u4ece\u800c\u5207\u65ad\u653e\u7535\u56de\u8def\uff0c\u8d77\u5230\u77ed\u8def\u4fdd\u62a4\u4f5c\u7528\u3002\u77ed\u8def\u4fdd\u62a4\u7684\u5ef6\u65f6\u65f6\u95f4\u6781\u77ed\uff0c\u901a\u5e38\u5c0f\u4e8e<\/span>7<\/span>\u5fae\u79d2\u3002\u5176\u5de5\u4f5c\u539f\u7406\u4e0e\u8fc7\u7535\u6d41\u4fdd\u62a4\u7c7b\u4f3c\uff0c\u53ea\u662f\u5224\u65ad\u65b9\u6cd5\u4e0d\u540c\uff0c\u4fdd\u62a4\u5ef6\u65f6\u65f6\u95f4\u4e5f\u4e0d\u4e00\u6837\u3002<\/span> <\/span>\n<\/p>\n

\n\t    <\/span><\/span>\u4ee5\u4e0a\u8be6\u7ec6\u9610\u8ff0\u4e86\u5355\u8282\u9502\u79bb\u5b50\u7535\u6c60\u4fdd\u62a4\u7535\u8def\u7684\u5de5\u4f5c\u539f\u7406\uff0c\u4e0a\u9762\u7535\u8def\u4e2d\u6240\u7528\u7684\u63a7\u5236<\/span>IC<\/span>\u4e3a\u65e5\u672c\u7406\u5149\u516c\u53f8\u7684<\/span>R5421<\/span>\u7cfb\u5217\uff0c\u5728\u5b9e\u9645\u7684\u7535\u6c60\u4fdd\u62a4\u7535\u8def\u4e2d\uff0c\u8fd8\u6709\u8bb8\u591a\u5176\u5b83\u7c7b\u578b\u7684\u63a7\u5236<\/span>IC<\/span>\uff0c\u5982\u65e5\u672c\u7cbe\u5de5\u7684<\/span>S-8241<\/span>\u7cfb\u5217\u3001\u65e5\u672c<\/span>MITSUMI<\/span>\u7684<\/span>MM3061<\/span>\u7cfb\u5217\u3001\u53f0\u6e7e\u5bcc\u6676\u7684<\/span>FS312<\/span>\u548c<\/span>FS313<\/span>\u7cfb\u5217\u3001\u53f0\u6e7e\u7c7b\u6bd4\u79d1\u6280\u7684<\/span>AAT8632<\/span>\u7cfb\u5217\u7b49\u7b49\uff0c\u5176\u5de5\u4f5c\u539f\u7406\u5927\u540c\u5c0f\u5f02\uff0c\u53ea\u662f\u5728\u5177\u4f53\u53c2\u6570\u4e0a\u6709\u6240\u5dee\u522b\uff0c\u6709\u4e9b\u63a7\u5236<\/span>IC<\/span>\u4e3a\u4e86\u8282\u7701\u5916\u56f4\u7535\u8def\uff0c\u5c06\u6ee4\u6ce2\u7535\u5bb9\u548c\u5ef6\u65f6\u7535\u5bb9\u505a\u5230\u4e86\u82af\u7247\u5185\u90e8\uff0c\u5176\u5916\u56f4\u7535\u8def\u53ef\u4ee5\u5f88\u5c11\uff0c\u5982\u65e5\u672c\u7cbe\u5de5\u7684<\/span>S-8241<\/span>\u7cfb\u5217\u3002<\/span> <\/span>\n<\/p>\n

\n\t    <\/span><\/span>\u9664\u4e86\u63a7\u5236<\/span>IC<\/span>\u5916\uff0c\u7535\u8def\u4e2d\u8fd8\u6709\u4e00\u4e2a\u91cd\u8981\u5143\u4ef6\uff0c\u5c31\u662f<\/span>MOSFET<\/span>\uff0c\u5b83\u5728\u7535\u8def\u4e2d\u8d77\u7740\u5f00\u5173\u7684\u4f5c\u7528\uff0c\u7531\u4e8e\u5b83\u76f4\u63a5\u4e32\u63a5\u5728\u7535\u6c60\u4e0e\u5916\u90e8\u8d1f\u8f7d\u4e4b\u95f4\uff0c\u56e0\u6b64\u5b83\u7684\u5bfc\u901a\u963b\u6297\u5bf9\u7535\u6c60\u7684\u6027\u80fd\u6709\u5f71\u54cd\uff0c\u5f53\u9009\u7528\u7684<\/span>MOSFET<\/span>\u8f83\u597d\u65f6\uff0c\u5176\u5bfc\u901a\u963b\u6297\u5f88\u5c0f\uff0c\u7535\u6c60\u5305\u7684\u5185\u963b\u5c31\u5c0f\uff0c\u5e26\u8f7d\u80fd\u529b\u4e5f\u5f3a\uff0c\u5728\u653e\u7535\u65f6\u5176\u6d88\u8017\u7684\u7535\u80fd\u4e5f\u5c11\u3002<\/span> <\/span>\n<\/p>\n

\n\t    <\/span><\/span>\u968f\u7740\u79d1\u6280\u7684\u53d1\u5c55\uff0c\u624b\u673a\u7684\u4f53\u79ef\u8d8a\u505a\u8d8a\u5c0f\uff0c\u800c\u968f\u7740\u8fd9\u79cd\u8d8b\u52bf\uff0c\u5bf9\u9502\u79bb\u5b50\u7535\u6c60\u7684\u4fdd\u62a4\u7535\u8def\u4f53\u79ef\u7684\u8981\u6c42\u4e5f\u8d8a\u6765\u8d8a\u5c0f\uff0c\u5728\u8fd9\u4e24\u5e74\u5df2\u51fa\u73b0\u4e86\u5c06\u63a7\u5236<\/span>IC<\/span>\u548c<\/span>MOSFET<\/span>\u6574\u5408\u6210\u4e00\u9897\u4fdd\u62a4<\/span>IC<\/span>\u7684\u4ea7\u54c1\uff0c\u5982<\/span>DIALOG<\/span>\u516c\u53f8\u7684<\/span>DA7112<\/span>\u7cfb\u5217\uff0c\u6709\u7684\u5382\u5bb6\u751a\u81f3\u5c06\u6574\u4e2a\u4fdd\u62a4\u7535\u8def\u5c01\u88c5\u6210\u4e00\u9897\u5c0f\u5c3a\u5bf8\u7684<\/span>IC<\/span>\uff0c\u5982<\/span>MITSUMI<\/span>\u516c\u53f8\u7684\u4ea7\u54c1\u3002<\/span> <\/span>\n<\/p>\n

\n\t    <\/span><\/span>\u624b\u673a\u7684\u9502\u79bb\u5b50\u7535\u6c60\u5728\u635f\u574f\u540e\uff0c\u6709\u4e9b\u662f\u4fdd\u62a4\u7535\u8def\u51fa\u6545\u969c<\/span>(<\/span>\u5c24\u5176\u662f\u8fdb\u6c34\u673a\u7684\u7535\u6c60<\/span>)<\/span>\uff0c\u56e0\u6b64\u6709\u4e9b\u9502\u7535\u53ef\u4ee5\u62c6\u5f00\u6765\u4fee\u590d\uff0c\u65e2\u73af\u4fdd\u53c8\u4e0d\u6d6a\u8d39\u3002<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

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