{"id":92707,"date":"2024-05-11T15:55:00","date_gmt":"2024-05-11T07:55:00","guid":{"rendered":"\/\/www.dealsbon.com\/?p=92707"},"modified":"2024-05-11T15:55:05","modified_gmt":"2024-05-11T07:55:05","slug":"lyyzldxz","status":"publish","type":"post","link":"\/\/www.dealsbon.com\/blog\/92707.html","title":{"rendered":"LoRa\u5e94\u7528\u4e2dLDO\u7684\u9009\u62e9"},"content":{"rendered":"\n<p>\u3000\u3000\u5728\u9009\u62e9<strong>LoRa\u5e94\u7528<\/strong>\u4e2d\u7684LDO(\u7ebf\u6027\u7a33\u538b\u5668)\u65f6\uff0c\u9700\u8981\u8003\u8651\u591a\u4e2a\u5173\u952e\u56e0\u7d20\u4ee5\u786e\u4fdd\u9009\u7528\u7684LDO\u80fd\u591f\u6ee1\u8db3\u7cfb\u7edf\u7684\u9700\u6c42\u3002\u4ee5\u4e0b\u662f\u57fa\u4e8e\u6211\u641c\u7d22\u5230\u7684\u8d44\u6599\u8fdb\u884c\u7684\u8be6\u7ec6\u5206\u6790\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u3000\u3000<strong>\u8f93\u5165\u548c\u8f93\u51fa\u7535\u538b\u8303\u56f4<\/strong>\uff1a\u9996\u5148\uff0c\u5fc5\u987b\u786e\u4fdd\u6240\u9009LDO\u7684\u8f93\u5165\u7535\u538b\u8303\u56f4\u4e0e\u7cfb\u7edf\u7684\u4f9b\u7535\u7535\u538b\u76f8\u5339\u914d\uff0c\u4ee5\u53ca\u5176\u8f93\u51fa\u7535\u538b\u662f\u5426\u9002\u5408\u7ec8\u7aef\u8d1f\u8f7d\u7684\u8981\u6c42\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u538b\u5dee(Vdropout)<\/strong>\uff1aLDO\u7684\u538b\u5dee\u662f\u6307\u8f93\u5165\u7535\u538b\u548c\u8f93\u51fa\u7535\u538b\u4e4b\u95f4\u7684\u6700\u5c0f\u5dee\u503c\uff0c\u8fd9\u76f4\u63a5\u5f71\u54cd\u5230\u7a33\u5b9a\u6027\u548c\u6548\u7387\u3002\u8f83\u4f4e\u7684\u538b\u5dee\u6709\u52a9\u4e8e\u63d0\u9ad8\u7cfb\u7edf\u7684\u6574\u4f53\u6027\u80fd\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u9759\u6001\u7535\u6d41(Iq)<\/strong>\uff1a\u5bf9\u4e8e\u9700\u8981\u957f\u65f6\u95f4\u8fd0\u884c\u7684\u7535\u6c60\u4f9b\u7535\u7cfb\u7edf\uff0c\u4f4e\u9759\u6001\u7535\u6d41\u7684LDO\u53ef\u4ee5\u663e\u8457\u51cf\u5c11\u7535\u6c60\u635f\u8017\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u5c01\u88c5\u7c7b\u578b\u548c\u5c3a\u5bf8<\/strong>\uff1a\u6839\u636e\u5e94\u7528\u7684\u7a7a\u95f4\u9650\u5236\u548c\u7269\u7406\u5e03\u5c40\u9700\u6c42\u9009\u62e9\u5408\u9002\u7684LDO\u5c01\u88c5\u7c7b\u578b\u548c\u5c3a\u5bf8\u4e5f\u662f\u91cd\u8981\u7684\u8003\u8651\u56e0\u7d20\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u96c6\u6210\u5ea6<\/strong>\uff1a\u4e00\u4e9bLoRa\u6a21\u5757\u5df2\u7ecf\u5185\u7f6e\u4e86LDO\uff0c\u56e0\u6b64\u5728\u9009\u62e9\u5916\u90e8LDO\u65f6\uff0c\u8fd8\u9700\u8981\u8003\u8651\u662f\u5426\u9700\u8981\u989d\u5916\u7684\u7a7a\u95f4\u6765\u5b89\u88c5LDO\u6216\u662f\u5426\u53ef\u4ee5\u5229\u7528\u6a21\u5757\u5185\u7f6e\u7684LDO\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u7279\u5b9a\u6280\u672f\u89c4\u683c<\/strong>\uff1a\u4f8b\u5982\uff0c\u5bf9\u4e8e\u67d0\u4e9bLoRa\u82af\u7247\uff0c\u5982SX1268.\u5b83\u652f\u6301\u4f4e\u538b\u5dee\u7a33\u538b\u5668(LDO)\u548c\u9ad8\u6548\u7387\u964d\u538bDC-DC\u8f6c\u6362\u5668\u4e24\u79cd\u4f9b\u7535\u65b9\u5f0f\uff0c\u8fd9\u4e3a\u8bbe\u8ba1\u63d0\u4f9b\u4e86\u7075\u6d3b\u6027\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u3000\u3000LoRa\u9009\u62e9\u5408\u9002\u7684LDO\u4e0d\u4ec5\u8981\u8003\u8651\u57fa\u672c\u7684\u7535\u6c14\u53c2\u6570\uff0c\u8fd8\u9700\u8981\u8003\u8651\u7cfb\u7edf\u7684\u5177\u4f53\u5e94\u7528\u573a\u666f\u3001\u9884\u7b97\u4ee5\u53ca\u7269\u7406\u7a7a\u95f4\u9650\u5236\u3002\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u53ef\u80fd\u8fd8\u9700\u8981\u7ed3\u5408\u5b9e\u9a8c\u6570\u636e\u548c\u5b9e\u9645\u6d4b\u8bd5\u7ed3\u679c\u6765\u4f18\u5316\u9009\u62e9\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u3000\u4e00\u3001 LoRa\u5e94\u7528\u4e2dLDO\u7684\u538b\u5dee\u8303\u56f4\u662f\u591a\u5c11\uff0c\u4ee5\u53ca\u5982\u4f55\u5f71\u54cd\u7cfb\u7edf\u7684\u7a33\u5b9a\u6027\u548c\u6548\u7387?<\/h2>\n\n\n\n<p>\u3000\u3000\u5728LoRa\u5e94\u7528\u4e2d\uff0cLDO(\u4f4e\u538b\u5dee\u7a33\u538b\u5668)\u7684\u538b\u5dee\u8303\u56f4\u901a\u5e38\u5728\u51e0\u767e\u6beb\u4f0f\u81f3\u51e0\u4f0f\u4e4b\u95f4\u3002\u8fd9\u79cd\u4f4e\u538b\u5dee\u7684\u8bbe\u8ba1\u6709\u52a9\u4e8e\u5c06\u9ad8\u7535\u538b\u964d\u4f4e\u5230\u8f83\u4f4e\u7684\u7535\u538b\u6c34\u5e73\uff0c\u4ece\u800c\u63d0\u9ad8\u7cfb\u7edf\u7684\u6574\u4f53\u6548\u7387\u548c\u7a33\u5b9a\u6027\u3002<\/p>\n\n\n\n<p>\u3000\u3000LDO\u7684\u4e3b\u8981\u4f18\u52bf\u5728\u4e8e\u5176\u80fd\u591f\u63d0\u4f9b\u7a33\u5b9a\u7684\u8f93\u51fa\u7535\u538b\uff0c\u4e0d\u53d7\u8f93\u5165\u7535\u538b\u6ce2\u52a8\u7684\u5f71\u54cd\uff0c\u8fd9\u5bf9\u4e8e\u786e\u4fdd\u901a\u4fe1\u8bbe\u5907\u5982LoRa\u6a21\u5757\u5728\u4e0d\u540c\u7535\u6e90\u6761\u4ef6\u4e0b\u90fd\u80fd\u7a33\u5b9a\u5de5\u4f5c\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002\u6b64\u5916\uff0c\u901a\u8fc7\u6700\u5c0f\u5316\u8f93\u5165\u7535\u538b\u4e0e\u8f93\u51fa\u7535\u538b\u4e4b\u95f4\u7684\u5dee\u5f02\uff0c\u53ef\u4ee5\u8fdb\u4e00\u6b65\u4f18\u5316LDO\u7684\u6548\u7387\uff0c\u56e0\u4e3a\u8fd9\u79cd\u5dee\u5f02\u76f4\u63a5\u5f71\u54cd\u5230\u529f\u7387\u635f\u8017\u548c\u7cfb\u7edf\u7684\u80fd\u6548\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u5982LoRa\u6c34\u8868\u76d1\u6d4b\u7cfb\u7edf\uff0c\u4f7f\u7528LDO\u53ef\u4ee5\u6709\u6548\u5730\u7ba1\u7406\u7535\u6e90\u4f9b\u5e94\uff0c\u786e\u4fdd\u6a21\u5757\u5728\u5e7f\u6cdb\u7684\u7535\u538b\u8303\u56f4\u5185(\u4f8b\u59822~5.5V)\u6b63\u5e38\u5de5\u4f5c\uff0c\u540c\u65f6\u4fdd\u6301\u8f83\u4f4e\u7684\u529f\u8017\u3002\u8fd9\u5bf9\u4e8e\u5ef6\u957f\u8bbe\u5907\u7684\u4f7f\u7528\u5bff\u547d\u548c\u51cf\u5c11\u7ef4\u62a4\u6210\u672c\u662f\u975e\u5e38\u6709\u76ca\u7684\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u7136\u800c\uff0c\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u867d\u7136LDO\u63d0\u4f9b\u4e86\u4f4e\u538b\u5dee\u548c\u7a33\u5b9a\u7684\u8f93\u51fa\uff0c\u4f46\u5176\u9759\u6001\u7535\u6d41\u76f8\u5bf9\u8f83\u5927\uff0c\u8fd9\u53ef\u80fd\u4f1a\u5f71\u54cd\u5230\u6574\u4e2a\u7cfb\u7edf\u7684\u6548\u7387\u3002\u56e0\u6b64\uff0c\u5728\u8bbe\u8ba1\u65f6\u9700\u8981\u8003\u8651\u5982\u4f55\u5e73\u8861\u8fd9\u4e9b\u56e0\u7d20\uff0c\u4ee5\u8fbe\u5230\u6700\u4f73\u7684\u6027\u80fd\u8868\u73b0\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u603b\u7ed3\u6765\u8bf4\uff0cLDO\u5728LoRa\u5e94\u7528\u4e2d\u7684\u4f4e\u538b\u5dee\u8bbe\u8ba1\u4e0d\u4ec5\u63d0\u9ad8\u4e86\u7cfb\u7edf\u7684\u7a33\u5b9a\u6027\uff0c\u8fd8\u6709\u52a9\u4e8e\u63d0\u5347\u6574\u4f53\u6548\u7387\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u3000\u4e8c\u3001 \u5728LoRa\u7cfb\u7edf\u4e2d\uff0c\u54ea\u4e9bLDO\u7684\u9759\u6001\u7535\u6d41\u6700\u5c0f\uff0c\u5bf9\u7535\u6c60\u635f\u8017\u7684\u5f71\u54cd\u5982\u4f55?<\/h2>\n\n\n\n<p>\u3000\u3000\u5728LoRa\u7cfb\u7edf\u4e2d\uff0c\u9009\u62e9\u5177\u6709\u6700\u5c0f\u9759\u6001\u7535\u6d41\u7684LDO\u5bf9\u7535\u6c60\u635f\u8017\u6709\u663e\u8457\u5f71\u54cd\u3002\u5723\u90a6\u5fae\u7684SGM2034\u662f\u4e00\u6b3e\u5177\u6709\u6781\u4f4e\u9759\u6001\u6f0f\u7535\u6d41(1uA)\u7684LDO\uff0c\u8fd9\u4f7f\u5176\u6210\u4e3a\u4f4e\u529f\u8017\u5e94\u7528\u4e2d\u7684\u7406\u60f3\u9009\u62e9\u3002\u9759\u6001\u7535\u6d41\u662f\u6307LDO\u5728\u5de5\u4f5c\u72b6\u6001\u65f6\u5185\u90e8\u63a7\u5236\u7535\u8def\u6d88\u8017\u7684\u7535\u6d41\uff0c\u8fd9\u79cd\u7535\u6d41\u4eceGND\u811a\u6d41\u51fa\uff0c\u5bf9\u4e8e\u7531\u7535\u6c60\u4f9b\u7535\u7684\u8bbe\u5907\u6765\u8bf4\uff0c\u4f4e\u9759\u6001\u7535\u6d41\u53ef\u4ee5\u663e\u8457\u5ef6\u957f\u8bbe\u5907\u7684\u8fd0\u884c\u65f6\u95f4\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u6b64\u5916\uff0c\u4f4e\u9759\u6001\u7535\u6d41\u7684LDO\u8fd8\u80fd\u51cf\u5c11\u7535\u6c60\u7684\u65e0\u6548\u8d1f\u8f7d\uff0c\u4ece\u800c\u63d0\u9ad8\u7535\u6c60\u5bff\u547d\u548c\u6574\u4f53\u7cfb\u7edf\u6548\u7387\u3002\u5728LoRa\u7cfb\u7edf\u4e2d\uff0c\u7531\u4e8e\u8bbe\u5907\u901a\u5e38\u9700\u8981\u957f\u65f6\u95f4\u8fd0\u884c\u5e76\u4f9d\u8d56\u7535\u6c60\u4f9b\u7535\uff0c\u56e0\u6b64\u4efb\u4f55\u53ef\u4ee5\u51cf\u5c11\u7535\u6c60\u6d88\u8017\u7684\u6280\u672f\u90fd\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002\u4f8b\u5982\uff0cLDO\u7684\u9759\u6001\u7535\u6d41\u4f4e\u4e8e1 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class=\"wp-block-list\">\n<li>\u3000\u3000<strong>\u7a33\u5b9a\u4f9b\u7535<\/strong>\uff1a\u591a\u4e2a\u8bc1\u636e\u8868\u660e\uff0c\u5185\u7f6eLDO\u53ef\u4ee5\u4fdd\u8bc1\u6a21\u5757\u7684\u7a33\u5b9a\u4f9b\u7535\uff0c\u8fd9\u662f\u56e0\u4e3aLDO\u80fd\u591f\u63d0\u4f9b\u7a33\u5b9a\u7684\u8f93\u51fa\u7535\u538b\uff0c\u4ece\u800c\u786e\u4fdd\u6a21\u5757\u5728\u4e0d\u540c\u73af\u5883\u4e0b\u7684\u53ef\u9760\u6027\u548c\u6027\u80fd\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u7535\u6e90\u8bbe\u8ba1<\/strong>\uff1a\u5728\u8bbe\u8ba1\u7535\u6e90\u65f6\uff0c\u5e94\u9009\u62e9\u5e72\u51c0\u3001\u7a33\u5b9a\u7684\u7535\u6e90\uff0c\u5e76\u5c3d\u53ef\u80fd\u4f7f\u7528LDO\u4f5c\u4e3a\u7535\u6e90\u3002\u4f8b\u5982\uff0c\u90ae\u7968\u53e3LoRa\u6a21\u5757\u9009\u578b\u6307\u5357\u5efa\u8bae\u7535\u6e90\u7535\u538bVCC\u7684\u8f93\u5165\u8303\u56f4\u4e3a2.2V\u52303.7V\uff0c\u5e76\u5f3a\u8c03\u4e86\u7535\u6e90\u8bbe\u8ba1\u7684\u5b8c\u6574\u6027\u5bf9\u6a21\u7ec4\u6027\u80fd\u7684\u5f71\u54cd\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u7535\u6d41\u9700\u6c42<\/strong>\uff1a\u5728\u4f7f\u7528LoRa 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