{"id":9280,"date":"2022-06-13T15:28:59","date_gmt":"2022-06-13T07:28:59","guid":{"rendered":"http:\/\/www.szryc.com\/?p=9280"},"modified":"2022-06-13T15:28:59","modified_gmt":"2022-06-13T07:28:59","slug":"%e4%bf%a1%e5%8f%b7%e5%92%8c%e7%94%b5%e6%ba%90%e5%ae%8c%e6%95%b4%e6%80%a7%e5%9f%ba%e7%a1%80%e5%af%b9%e4%ba%8e%e9%ab%98%e9%80%9fpcb%e8%87%b3%e5%85%b3%e9%87%8d%e8%a6%81","status":"publish","type":"post","link":"http:\/\/www.szryc.com\/?p=9280","title":{"rendered":"\u4fe1\u53f7\u548c\u7535\u6e90\u5b8c\u6574\u6027\u57fa\u7840\u5bf9\u4e8e\u9ad8\u901fPCB\u81f3\u5173\u91cd\u8981"},"content":{"rendered":"

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\u901a\u8fc7\u4f7f\u9ad8\u901f\u4fe1\u53f7\u8fdc\u79bb\u5608\u6742\u7684\u4fe1\u53f7\u3001\u65f6\u949f\u548c\u5f00\u5173<\/u>\u6a21\u5f0f\u7535\u6e90\u6765\u4fdd\u62a4\u5b83\u4eec\u3002<\/p>\n

\u7535\u6e90\u5b8c\u6574\u6027<\/p>\n

\u7535\u6e90\u5b8c\u6574\u6027 \uff08PI<\/u>\uff09 \u662f\u901a\u8fc7\u5728\u7cfb\u7edf\u5185\u90e8\u63d0\u4f9b\u7b26\u5408\u5904\u7406\u5668\u548c\u6240\u6709\u5176\u4ed6\u7ec4\u4ef6\u6240\u9700\u7535\u6e90\u6761\u4ef6\u7684\u7535\u6e90\u4f20\u8f93\u7f51\u7edc \uff08PDN\uff09 \u6765\u5b9e\u73b0\u7684\u3002PDN \u662f\u4f20\u8f93\u5e73\u9762\u5f62\u5f0f\u7684\u4e92\u8fde\u94fe\uff0c\u901a\u8fc7 PCB\u3001\u5c01\u88c5\u548c\u7247\u4e0a\u8def\u7531\u4ece\u7a33\u538b\u5668\u6a21\u5757 \uff08VR<\/u>M\uff09 \u5411\u6676\u4f53\u7ba1<\/u>\u672c\u8eab\u4f9b\u7535\u3002<\/p>\n

PI \u6bd4 SI \u66f4\u96be\u53ef\u89c6\u5316\uff0c\u4e8b\u5b9e\u8bc1\u660e\uff0c\u6709\u6570\u5341\u4e2a\u548c\u6570\u767e\u4e2a\u8282\u70b9\u8fde\u63a5\u5728\u540c\u4e00\u7535\u6e90\u5e73\u9762\u4e2d\uff0c\u6bcf\u4e2a\u8282\u70b9\u90fd\u4f1a\u5f71\u54cd PDN \u4e2d\u7684\u6574\u4f53\u963b\u6297\uff0c\u800c SI \u4ec5\u5904\u7406\u9a71\u52a8\u5668\u548c\u63a5\u6536\u5668\u3002PI \u95ee\u9898\u96be\u4ee5\u91cd\u590d\u548c\u6392\u9664\u6545\u969c\u3002\u56e0\u6b64\uff0c\u5efa\u8bae\u5728\u5e03\u5c40\u524d\u548c\u5e03\u5c40\u540e PCB \u8bbe\u8ba1\u9636\u6bb5\u8fdb\u884c\u5b8c\u6574\u7684 PI \u7814\u7a76\u3002\u867d\u7136\u5b8c\u6574\u7684 PI \u5206\u6790\u9700\u8981\u9ad8\u7ea7\u4e14\u901a\u5e38\u6602\u8d35\u7684 PI \u4eff\u771f\u5de5\u5177\uff0c\u4f46\u6211\u4eec\u5c06\u5728\u6b64\u5904\u575a\u6301\u8bbe\u8ba1\u57fa\u7840\u3002<\/p>\n

\u9ad8\u901f\u6570\u5b57\u8bbe\u8ba1\u4e2d\u7684\u826f\u597d PI \u7cfb\u7edf\u6709\u4e24\u4e2a\u57fa\u672c\u76ee\u7684\u3002\u9996\u5148\uff0c\u5b83\u4e3a\u4ea4\u6362\u4fe1\u53f7\u63d0\u4f9b\u7a33\u5b9a\u7684\u7535\u538b\u53c2\u8003\uff08\u63a5\u5730\/\u8fd4\u56de\u8def\u5f84\uff09\u3002\u5176\u6b21\uff0c\u5b83\u4ee5\u53ef\u63a5\u53d7\u7684\u566a\u58f0\u548c\u5bb9\u5dee\u5c06\u7535\u6e90\u5206\u914d\u7ed9\u6240\u6709\u903b\u8f91\u5668\u4ef6<\/u>\uff0c\u4ee5\u4fdd\u6301\u82af\u7247\u710a\u76d8\u4e0a\u7684\u7535\u538b\u6052\u5b9a\u3002<\/p>\n

\u542c\u8d77\u6765\u5f88\u7b80\u5355\uff0c\u4f46\u5728\u9ad8\u901f PCB \u8bbe\u8ba1\u4e2d\u9700\u8981\u5b9e\u73b0\u4e00\u4e9b\u4e8b\u5b9e\u3002\u9996\u5148\uff0c\u5178\u578b\u7684 BGA \u5904\u7406\u5668\u901a\u5e38\u6709\u6570\u767e\u4e2a\u7535\u6e90\u548c\u63a5\u5730\u7403\uff0c\u9700\u8981\u6570\u5341\u4e2a\u7535\u6e90\u7535\u538b\u3002\u5176\u6b21\uff0c\u6240\u6709\u8fd9\u4e9b\u7535\u6e90\u5f15\u811a\u90fd\u6d88\u8017\u8bb8\u591a\u5b89\u57f9\u7684\u7535\u6d41\u3002\u56e0\u6b64\uff0c\u5f53\u5668\u4ef6\u5de5\u4f5c\u65f6\uff0c\u6240\u6709\u8fd9\u4e9b\u6d88\u8017\u5b89\u57f9\u7535\u6d41\u7684\u7535\u6e90\u5f15\u811a\u540c\u65f6\u52a0\u8f7d\u6240\u6709\u9ad8\u9891\u7535\u6e90\u7535\u538b\u3002<\/p>\n

\u8003\u8651\u5230\u8fd9\u4e00\u70b9\uff0cPI \u7814\u7a76\u4e0d\u518d\u53ea\u662f\u5355\u7eaf\u7684\u76f4\u6d41\u5206\u6790\uff0c\u800c\u662f\u6d89\u53ca\u4ece VRM \u5230 IC \u710a\u76d8\u7684\u6bcf\u4e2a\u7535\u6e90\u8f68\u4e2d\u9ad8\u9891\u77ac\u6001\u8d1f\u8f7d\u7684\u7814\u7a76\u3002<\/p>\n

\u7535\u6e90\u5b8c\u6574\u6027\u7684\u57fa\u672c\u8bbe\u8ba1\u8003\u8651\u4ece\u9ad8\u9891\u4f20\u8f93\u5e73\u9762\u884c\u4e3a\u5f00\u59cb\u3002\u4e0e SI \u7684\u4f20\u8f93\u7ebf\u7c7b\u4f3c\uff0cPI \u5206\u6790\u7684\u5173\u952e\u662f\u5c06\u6240\u6709\u7535\u6e90\u8f68\u89c6\u4e3a\u4f20\u8f93\u5e73\u9762\u5e76\u5206\u6790\u5176\u7279\u6027\u963b\u6297\u3002\u4e3a\u4e86\u5b9e\u73b0\u826f\u597d\u7684\u7535\u6e90\u5b8c\u6574\u6027\uff0c\u5e0c\u671b PDN \u5177\u6709\u5c3d\u53ef\u80fd\u4f4e\u7684\u963b\u6297\u3002\u53ef\u80fd\u4f1a\u4ea7\u751f\u9ad8\u9891\u77ac\u6001\u566a\u58f0\uff0c\u5982\u679c\u88ab\u5ffd\u89c6\uff0c\u53ef\u80fd\u4f1a\u4f20\u64ad\u5230\u6574\u4e2a\u7535\u8def\u677f\u3002<\/p>\n

\u4e3b\u8981\u6311\u6218\u662f PCB \u4e2d\u7684 PDN \u4e92\u8fde\u90fd\u5177\u6709\u7535\u611f\u7279\u6027\u3002\u5143\u4ef6\u5b89\u88c5\u3001PCB \u8d70\u7ebf\u3001\u7535\u5bb9\u5668<\/u>\u548c\u8fc7\u5b54\u90fd\u8868\u73b0\u51fa\u7535\u611f\u3002\u8fd9\u8868\u660e\u963b\u6297\u968f\u7740\u77ac\u6001\u9891\u7387\u7684\u589e\u52a0\u800c\u589e\u52a0\u3002\u7531\u4e8e VRM\u3001\u7535\u5bb9\u5668\u3001PCB \u53e0\u5c42\u3001\u7535\u6e90\/\u63a5\u5730\u5c42\u548c IC \u5728\u4e0d\u540c\u9891\u7387\u4e0b\u90fd\u6709\u4e0d\u540c\u7684\u7279\u6027\u963b\u6297\uff0c\u56e0\u6b64\u4ed4\u7ec6\u9009\u62e9\u5143\u4ef6\u548c\u653e\u7f6e\u4f4d\u7f6e\u662f\u964d\u4f4e\u4f20\u8f93\u5c42\u963b\u6297\u7684\u65b9\u6cd5\u3002<\/p>\n

\u56fe 1 \u548c\u56fe 2 \u5c55\u793a\u4e86\u7535\u5bb9\u5668\u5728\u9ad8\u9891\u4e0b\u7684\u7535\u611f\u7279\u6027\u4ee5\u53ca\u5178\u578b PDN \u7684\u7b49\u6548\u7535\u8def<\/u>\u3002\u56fe 1 \u662f\u4f7f\u7528 AVX \u7684 SpiCap \u4eff\u771f\u5de5\u5177\u7684 0603\u3001X7R\u30011-uF \u7535\u5bb9\u5668\u963b\u6297\u4e0e\u9891\u7387\u56fe\u7684\u793a\u4f8b\u3002\u56fe\u7684\u5de6\u534a\u90e8\u5206\u663e\u793a\u7535\u5bb9\u5728 0 \u5230 22.5 MHz \u4e4b\u95f4\u7684\u7279\u6027\u963b\u6297\u4e2d\u5360\u4e3b\u5bfc\u5730\u4f4d\uff0c\u53f3\u534a\u90e8\u5206\u663e\u793a\u7535\u611f\u5728\u5927\u4e8e 22.5 MHz \u7684\u9891\u7387\u4e2d\u5360\u4e3b\u5bfc\u5730\u4f4d\u3002<\/p>\n

\"pYYBAGKmnH-AUbcEAAGzCcSxtQY932\"<\/p>\n

1. 0603\u3001X7R\u30011-uF \u7535\u5bb9\u5668\u7684\u963b\u6297\u4e0e\u9891\u7387\u56fe\u793a\u4f8b\u3002<\/p>\n

\u56fe 2 \u662f\u4e00\u4e2a PDN \u7b49\u6548\u7535\u8def\uff0c\u8bf4\u660e\u4e86\u540c\u4e00\u4f20\u8f93\u5e73\u9762\u7684\u6bcf\u4e2a\u4e92\u8fde\u7684\u7535\u963b<\/u>\u3001\u7535\u5bb9\u548c\u7535\u611f\u7279\u6027\u3002\u6240\u6709\u8fd9\u4e9b\u7269\u7406\u73b0\u8c61\u90fd\u9700\u8981\u4f5c\u4e3a PI \u5206\u6790\u7684\u4e00\u90e8\u5206\u8fdb\u884c\u6df1\u5165\u7814\u7a76\u3002<\/p>\n

\"pYYBAGKmnIaAawPfAAD-oG-ufPc987\"<\/p>\n

2. \u663e\u793a\u7684\u662f\u4ece\u00a0Altera<\/u>\u00a0\u7684 PDN\u00a0\u5de5\u5177<\/u>\u6355\u83b7\u7684\u5178\u578b\u4f20\u8f93\u5e73\u9762\u7684 PDN \u7b49\u6548\u539f\u7406\u56fe\u3002<\/p>\n

\u7406\u60f3\u60c5\u51b5\u4e0b\uff0c\u6211\u4eec\u5e0c\u671b\u4f7f\u6574\u4e2a\u4f20\u8f93\u5e73\u9762\u7684\u963b\u6297\u5c3d\u53ef\u80fd\u4f4e\u3002\u7531\u4e8e\u8bb8\u591a\u56e0\u7d20\u4f1a\u5f71\u54cd\u963b\u6297\uff0c\u56e0\u6b64\u9700\u8981\u4e3a\u7535\u8def\u677f\u4e0a\u6240\u6709\u82af\u7247\u7684\u6bcf\u4e2a\u7535\u538b\u8f68\u5355\u72ec\u4e14\u72ec\u7acb\u5730\u8ba1\u7b97\u76ee\u6807\u963b\u6297\u3002\u5728\u6bcf\u4e2a\u7535\u6e90\u8f68\u4e2d\uff0c\u7531\u4e8e\u82af\u7247\u7684\u7279\u5b9a\u7535\u6d41\u8981\u6c42\uff0c\u76ee\u6807\u963b\u6297\u53ef\u80fd\u968f\u9891\u7387\u800c\u53d8\u5316\u3002\u5728\u6307\u5b9a\u76ee\u6807\u963b\u6297\u65f6\uff0c\u5e94\u5c06\u5668\u4ef6\u89c4\u683c\u8868\u4e2d\u5217\u51fa\u7684\u6bcf\u4e2a\u5bfc\u8f68\u7684\u963b\u6297\u548c\u53ef\u63a5\u53d7\u7684\u5bb9\u5dee\u4fe1\u606f\u7528\u4f5c\u8d77\u59cb\u6307\u5357\u3002<\/p>\n

\u7279\u5b9a\u4f20\u8f93\u5e73\u9762\u7684 PDN \u7531\u4e0d\u540c\u7684\u4e92\u8fde\u5757\u7ec4\u6210\uff0c\u4ece VRM \u5230\u5927\u5bb9\u91cf\u53bb\u8026\u7535\u5bb9\u5668\uff0c\u518d\u5230\u901a\u5b54\uff0c\u518d\u5230\u7535\u8def\u677f\u4e0a\u7684\u8d70\u7ebf\u548c\u5e73\u9762\u3002\u7136\u540e\u662f\u989d\u5916\u7684\u53bb\u8026\u5e3d\u3001\u5c01\u88c5\u7684\u710a\u7403\u6216\u5f15\u7ebf\u3001\u5c01\u88c5\u4e2d\u7684\u4e92\u8fde\u4ee5\u53ca\u82af\u7247\u4e0a\u7684\u710a\u7ebf\u548c\u4e92\u8fde\u3002\u6bcf\u4e2a\u4e92\u8fde\u5757\u90fd\u6709\u52a9\u4e8e\u4f20\u8f93\u5e73\u9762\u7684\u7279\u6027\u963b\u6297\u3002\u5728\u5206\u6790 PDN \u65f6\uff0c\u9996\u5148\u8981\u7814\u7a76\u6bcf\u4e2a\u4e92\u8fde\u8f68\u9053\uff0c\u7136\u540e\u662f\u4f20\u8f93\u5e73\u9762\uff0c\u7136\u540e\u662f\u6574\u4e2a PDN \u7cfb\u7edf\u3002<\/p>\n

Altera PDN \u8bbe\u8ba1\u5de5\u5177\u53ef\u4ee5\u8bf4\u660e\u6bcf\u4e2a PDN \u4e92\u8fde\u5bf9\u4e0d\u540c\u9891\u7387\u5e26\u5bbd\u4e2d\u540c\u4e00\u4f20\u8f93\u5e73\u9762\u7684\u7279\u6027\u963b\u6297\u7684\u5f71\u54cd\u3002\u8be5\u5de5\u5177\u53ef\u4ee5\u901a\u8fc7 Altera \u7684\u6709\u6548\u00a0Quartus<\/u>\u00a0II\u00a0\u8f6f\u4ef6<\/u>\u8bb8\u53ef\u8bc1\u4e0b\u8f7d<\/u>\u3002\u901a\u8fc7\u5c06\u76ee\u6807\u963b\u6297\u8bbe\u7f6e\u4e3a 12.3 m\u03a9 \u5f00\u59cb\u8bbe\u8ba1\u8fc7\u7a0b\uff0c\u7136\u540e\u901a\u8fc7\u6bcf\u4e2a PDN \u4e92\u8fde\u3002<\/p>\n

\u4f4e\u9891\u963b\u6297\uff0c\u8303\u56f4\u4ece\u76f4\u6d41\u5230 10 kHz\uff0c\u7531 VRM \u8bbe\u7f6e\u3002VRM \u8f93\u51fa\u901a\u5e38\u4e3a\u6beb\u6b27\u7ea7\uff0c\u4ece DC \u5230 10 kHz\u3002<\/p>\n

\"poYBAGKmnRyAPvrrAAESmjfnVXQ998\"<\/p>\n

3. \u663e\u793a\u7684\u662f VRM \u7279\u6027\u963b\u6297\u3002<\/p>\n

VRM PCB \u5e03\u5c40\u9700\u8981\u8003\u8651\u7684\u5b9e\u7528\u6280\u5de7\u662f\uff1a<\/p>\n

\u6700\u5927\u5316\u91d1\u5c5e\u539a\u5ea6\u3002<\/p>\n

\u4f7f\u7528\u8db3\u591f\u5bbd\u7684\u7535\u6e90\u8d70\u7ebf\u3002<\/p>\n

\u4f7f\u7528\u591a\u4e2a\u5e76\u884c\u7684\u7535\u6e90\u548c\u63a5\u5730\u8fc7\u5b54\u3002<\/p>\n

\u4e0e VRM \u5e76\u8054\u7684\u5927\u5bb9\u91cf\u7535\u5bb9\u5668\u53ef\u5c06\u963b\u6297\u964d\u4f4e 10 \u81f3 100 kHz\u3002<\/p>\n

\"pYYBAGKmnSSAQpZAAAEsDU5t43A677\"<\/p>\n

4. \u663e\u793a\u7684\u662f\u5927\u5bb9\u91cf\u7535\u5bb9\u5668\u7684\u7279\u6027\u963b\u6297\u3002<\/p>\n

\u9009\u62e9\u5408\u9002\u7684\u5927\u5bb9\u91cf\u7535\u5bb9\u5668\u7684\u5b9e\u7528\u6280\u5de7\u662f\uff1a<\/p>\n

\u9075\u5faa\u5927\u5bb9\u91cf\u7535\u5bb9\u5668\u503c\u7684\u53c2\u8003\u8bbe\u8ba1\u3002<\/p>\n

\u9075\u5faa\u8bbe\u8ba1\u6307\u5357\u4ee5\u4f18\u5316\u5927\u5bb9\u91cf\u7535\u5bb9\u5668\u7684\u653e\u7f6e\u3002<\/p>\n

\u53bb\u8026\u7535\u5bb9\u53ef\u5c06\u4f20\u8f93\u5c42\u7684\u963b\u6297\u964d\u4f4e 0.1 \u81f3 10 MHz\u3002\u5728\u9760\u8fd1\u7535\u6e90\u710a\u76d8\u7684\u5165\u53e3\u70b9\u6dfb\u52a0\u53bb\u8026\u7535\u5bb9\u53ef\u964d\u4f4e\u73af\u8def\u7535\u611f\u3002\u9009\u62e9\u6b63\u786e\u7684\u4f4d\u7f6e\u5e76\u9009\u62e9\u6b63\u786e\u6570\u91cf\u548c\u503c\u7684\u53bb\u8026\u7535\u5bb9\u5668\u5728\u8fd9\u91cc\u8d77\u7740\u91cd\u8981\u4f5c\u7528\u3002<\/p>\n

\"poYBAGKmnSuARWQUAAE9_Lgl48o321\"<\/p>\n

5. \u663e\u793a\u7684\u662f\u53bb\u8026\u7535\u5bb9\u7279\u6027\u963b\u6297\u3002<\/p>\n

\u9009\u62e9\u6b63\u786e\u7684\u53bb\u8026\u7535\u5bb9\u7684\u5b9e\u7528\u6280\u5de7\u662f\uff1a<\/p>\n

\u8bbe\u8ba1\u7535\u5bb9\u5668\u503c\u3001\u4e3b\u4f53\u5c3a\u5bf8\u548c\u653e\u7f6e\u4ee5\u6ee1\u8db3\u963b\u6297\u89c4\u8303\u3002<\/p>\n

\u964d\u4f4e\u7535\u6e90\u63a5\u5730\u73af\u8def\u9762\u79ef\u4ee5\u51cf\u5c11\u73af\u8def\u7535\u611f\u3002<\/p>\n

\u7d27\u5bc6\u5806\u53e0\u7684\u7535\u6e90\u548c\u63a5\u5730\u53ef\u5c06 PDN \u7684\u7279\u6027\u963b\u6297\u63d0\u9ad8 10 \u81f3 100 MHz\u3002<\/p>\n

\"pYYBAGKmnTGAeUXbAAFCzY6G5Lw647\"<\/p>\n

6. \u663e\u793a\u7684\u662f PCB \u7535\u6e90\/\u63a5\u5730\u5c42\u7279\u6027\u963b\u6297\u3002<\/p>\n

\u8bbe\u8ba1\u7535\u6e90\/\u63a5\u5730\u5c42\u7684\u5b9e\u7528\u6280\u5de7\u662f\uff1a<\/p>\n

\u7535\u6e90\u5c42\u548c\u63a5\u5730\u5c42\u5e94\u5c3d\u53ef\u80fd\u9760\u8fd1\u3002<\/p>\n

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PI \u7684\u5b9e\u7528\u8bbe\u8ba1\u89c4\u5219\u662f\uff1a<\/p>\n

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