{"id":9807,"date":"2022-09-13T20:40:43","date_gmt":"2022-09-13T12:40:43","guid":{"rendered":"http:\/\/www.szryc.com\/?p=9807"},"modified":"2022-09-13T20:40:43","modified_gmt":"2022-09-13T12:40:43","slug":"13-2w%e7%94%b5%e6%ba%90%e5%8e%9f%e7%90%86%e5%9b%be%e8%ae%b2%e8%a7%a3","status":"publish","type":"post","link":"http:\/\/www.szryc.com\/?p=9807","title":{"rendered":"13.2W\u7535\u6e90\u539f\u7406\u56fe\u8bb2\u89e3"},"content":{"rendered":"

\u672c\u6b21\u8bb2\u89e3\u7535\u6e90<\/u>\u4ee5\u4e00\u4e2a13.2W\u7535\u6e90\u4e3a\u4f8b<\/strong><\/p>\n

\u8f93\u5165\uff1aAC90~264V \u8f93\u51fa\uff1a3.3V\/4A<\/p>\n

\u539f\u7406\u56fe<\/strong><\/p>\n

\"80ce2df2-3166-11ed-ba43-dac502259ad0\"<\/p>\n

\u53d8\u538b\u5668<\/u>\u662f\u6574\u4e2a\u7535\u6e90\u4f9b\u5e94\u5668\u7684\u91cd\u8981\u6838\u5fc3\uff0c\u6240\u4ee5\u53d8\u538b\u5668\u7684\u8ba1\u7b97\u53ca\u9a8c\u8bc1\u662f\u5f88\u91cd\u8981\u7684\u3002<\/p>\n

\u51b3\u5b9a\u53d8\u538b\u5668\u7684\u6750\u8d28\u53ca\u5c3a\u5bf8:<\/p>\n

\u4f9d\u636e\u53d8\u538b\u5668\u8ba1\u7b97\u516c\u5f0f<\/p>\n

\"80e98e94-3166-11ed-ba43-dac502259ad0\"<\/p>\n

\"81004918-3166-11ed-ba43-dac502259ad0\"<\/p>\n

\u51b3\u5b9a\u4e00\u6b21\u4fa7\u6ee4\u6ce2\u7535\u5bb9<\/u>\uff1a<\/strong><\/p>\n

\u6ee4\u6ce2\u7535\u5bb9\u7684\u51b3\u5b9a\uff0c\u53ef\u4ee5\u51b3\u5b9a\u7535\u5bb9\u5668<\/u>\u4e0a\u7684Vin(mi<\/u>n)\uff0c\u6ee4\u6ce2\u7535\u5bb9\u8d8a\u5927\uff0cVin(win)\u8d8a\u9ad8\uff0c\u53ef\u4ee5\u505a\u8f83\u5927\u74e6\u6570\u7684Power\uff0c\u4f46\u76f8\u5bf9\u4ef7\u683c\u4ea6\u8f83\u9ad8\u3002<\/p>\n

\u51b3\u5b9a\u53d8\u538b\u5668\u7ebf\u5f84\u53ca\u7ebf\u6570\uff1a<\/strong><\/p>\n

\u5f53\u53d8\u538b\u5668\u51b3\u5b9a\u540e\uff0c\u53d8\u538b\u5668\u7684Bobbin\u5373\u53ef\u51b3\u5b9a\uff0c\u4f9d\u636eBobbin\u7684\u69fd\u5bbd\uff0c\u53ef\u51b3\u5b9a\u53d8\u538b\u5668\u7684\u7ebf\u5f84\u53ca\u7ebf\u6570\uff0c\u4ea6\u53ef\u8ba1\u7b97\u51fa\u7ebf\u5f84\u7684\u7535\u6d41<\/u>\u5bc6\u5ea6\uff0c\u7535\u6d41\u5bc6\u5ea6\u4e00\u822c\u4ee56A\/mm2\u4e3a\u53c2\u8003\uff0c\u7535\u6d41\u5bc6\u5ea6\u5bf9\u53d8\u538b\u5668\u7684\u8bbe\u8ba1\u800c\u8a00\uff0c\u53ea\u80fd\u5f53\u505a\u53c2\u8003\u503c\uff0c\u6700\u7ec8\u5e94\u4ee5\u6e29\u5347\u8bb0\u5f55\u4e3a\u51c6\u3002<\/p>\n

\u51b3\u5b9aDuty cycle (\u5de5\u4f5c\u5468\u671f)\uff1a<\/strong><\/p>\n

\u7531\u4ee5\u4e0b\u516c\u5f0f\u53ef\u51b3\u5b9aDuty cycle \uff0cDuty cycle\u7684\u8bbe\u8ba1\u4e00\u822c\u4ee550%\u4e3a\u57fa\u51c6\uff0cDuty cycle\u82e5\u8d85\u8fc750%\u6613\u5bfc\u81f4\u632f\u8361\u7684\u53d1\u751f\u3002<\/p>\n

\"8119f624-3166-11ed-ba43-dac502259ad0\"<\/p>\n

\"812b4f96-3166-11ed-ba43-dac502259ad0\"<\/p>\n

\u51b3\u5b9aIp\u503c\uff1a<\/strong><\/p>\n

\"81415eb2-3166-11ed-ba43-dac502259ad0\"<\/p>\n

\u51b3\u5b9a\u8f85\u52a9\u7535\u6e90\u7684\u5708\u6570\uff1a<\/strong>\u00a0\u00a0 \u4f9d\u636e\u53d8\u538b\u5668\u7684\u5708\u6bd4\u5173\u7cfb\uff0c\u53ef\u51b3\u5b9a\u8f85\u52a9\u7535\u6e90\u7684\u5708\u6570\u53ca\u7535\u538b\u3002<\/p>\n

\u51b3\u5b9aMOSFET<\/u>\u53ca\u4e8c\u6b21\u4fa7\u4e8c\u6781\u7ba1<\/u>\u7684Stress(\u5e94\u529b<\/u>):<\/p>\n

\u4f9d\u636e\u53d8\u538b\u5668\u7684\u5708\u6bd4\u5173\u7cfb\uff0c\u53ef\u4ee5\u521d\u6b65\u8ba1\u7b97\u51fa\u53d8\u538b\u5668\u7684\u5e94\u529b(Stress)\u662f\u5426\u7b26\u5408\u9009\u7528\u96f6\u4ef6\u7684\u89c4\u683c\uff0c\u8ba1\u7b97\u65f6\u4ee5\u8f93\u5165\u7535\u538b264V(\u7535\u5bb9\u5668\u4e0a\u4e3a380V)\u4e3a\u57fa\u51c6\u3002<\/p>\n

\u5176\u5b83\uff1a<\/strong><\/p>\n

\u82e5\u8f93\u51fa\u7535\u538b\u4e3a5V\u4ee5\u4e0b\uff0c\u4e14\u5fc5\u987b\u4f7f\u7528TL431\u800c\u975eTL432\u65f6\uff0c\u987b\u8003\u8651\u591a\u4e00\u7ec4\u7ed5\u7ec4\u63d0\u4f9bPhoto coupler\u53caTL431\u4f7f\u7528\u3002 \u5c06\u6240\u5f97\u8d44\u6599<\/u>\u4ee3\u5165<\/p>\n

\"814f5558-3166-11ed-ba43-dac502259ad0\"<\/p>\n

\u516c\u5f0f\u4e2d\uff0c\u5982\u6b64\u53ef\u5f97\u51faB(max)\uff0c\u82e5B(max)\u503c\u592a\u9ad8\u6216\u592a\u4f4e\u5219\u53c2\u6570\u5fc5\u987b\u91cd\u65b0\u8c03\u6574\u3002<\/p>\n

\u53d8\u538b\u5668\u8ba1\u7b97\uff1a<\/strong><\/p>\n

\u8f93\u51fa\u74e6\u657013.2W(3.3V\/4A)\uff0cCore = EI-28\uff0c\u53ef\u7ed5\u9762\u79ef(\u69fd\u5bbd)=10mm\uff0cMargin Tape = 2.8mm(\u6bcf\u8fb9)\uff0c\u5269\u4f59\u53ef\u7ed5\u9762\u79ef=4.4mm.<\/p>\n

\u53d8\u538b\u5668\u6750\u8d28\u53ca\u5c3a\u5bf8\uff1a<\/strong><\/p>\n

\u7531\u4ee5\u4e0a\u5047\u8bbe\u53ef\u77e5\u6750\u8d28\u4e3aPC-40\uff0c\u5c3a\u5bf8=EI-28\uff0cAe=0.86cm2\uff0c\u53ef\u7ed5\u9762\u79ef(\u69fd\u5bbd)=10mm\uff0c\u56e0Margin Tape\u4f7f\u75282.8mm\uff0c\u6240\u4ee5\u5269\u4f59\u53ef\u7ed5\u9762\u79ef\u4e3a4.4mm. \u5047\u8bbe\u6ee4\u6ce2\u7535\u5bb9\u4f7f\u752847uF\/400V\uff0cVin(min)\u6682\u5b9a90V\u3002<\/p>\n

\u51b3\u5b9a\u53d8\u538b\u5668\u7684\u7ebf\u5f84\u53ca\u7ebf\u6570\uff1a<\/strong><\/p>\n

\"815e2f42-3166-11ed-ba43-dac502259ad0\"<\/p>\n

\"816e6678-3166-11ed-ba43-dac502259ad0\"<\/p>\n

\u51b3\u5b9aDuty cycle\uff1a<\/strong><\/p>\n

\"817df14c-3166-11ed-ba43-dac502259ad0\"<\/p>\n

\u51b3\u5b9aIp\u503c\uff1a<\/strong><\/p>\n

\"818d4ed0-3166-11ed-ba43-dac502259ad0\"<\/p>\n

\u51b3\u5b9a\u8f85\u52a9\u7535\u6e90\u7684\u5708\u6570\uff1a<\/strong><\/p>\n

\"8199bbf2-3166-11ed-ba43-dac502259ad0\"<\/p>\n

\"81b3d56e-3166-11ed-ba43-dac502259ad0\"<\/p>\n

\u51b3<\/strong>\u5b9aMOSFET\u53ca\u4e8c\u6b21\u4fa7\u4e8c\u6781\u7ba1\u7684Stress(\u5e94\u529b)\uff1a<\/strong><\/p>\n

\"81c47edc-3166-11ed-ba43-dac502259ad0\"<\/p>\n

\u5176\u5b83\uff1a<\/strong><\/p>\n

\u56e0\u4e3a\u8f93\u51fa\u4e3a3.3V\uff0c\u800cTL431\u7684Vr<\/u>ef\u503c\u4e3a2.5V\uff0c\u82e5\u518d\u52a0\u4e0aphoto coupler\u4e0a\u7684\u538b\u964d\u7ea61.2V\uff0c\u5c06\u4f7f\u5f97\u8f93\u51fa\u7535\u538b\u65e0\u6cd5\u63a8\u52a8Photo coupler\u53caTL431\uff0c\u6240\u4ee5\u5fc5\u987b\u53e6\u5916\u589e\u52a0\u4e00\u7ec4\u7ebf\u5708\u63d0\u4f9b\u56de\u6388\u8def\u5f84\u6240\u9700\u7684\u7535\u538b\u3002<\/p>\n

\"81d38756-3166-11ed-ba43-dac502259ad0\"<\/p>\n

\u53d8\u538b\u5668\u7684\u63a5\u7ebf\u56fe\uff1a<\/strong><\/p>\n

\"81e52b32-3166-11ed-ba43-dac502259ad0\"<\/p>\n

\u96f6\u4ef6\u9009\u7528\uff1a<\/strong><\/p>\n

\"82006438-3166-11ed-ba43-dac502259ad0\"<\/p>\n

\u25cfFS1:<\/strong>\u00a0\u7531\u53d8\u538b\u5668\u8ba1\u7b97\u5f97\u5230Iin\u503c\uff0c\u4ee5\u6b64Iin\u503c(0.42A)\u53ef\u77e5\u4f7f\u7528\u516c\u53f8<\/u>\u5171\u4eab\u65992A\/250V\uff0c\u8bbe\u8ba1\u65f6\u4ea6\u987b\u8003\u8651Pi<\/u>n(max)\u65f6\u7684Iin\u662f\u5426\u4f1a\u8d85\u8fc7\u4fdd\u9669\u4e1d<\/u>\u7684\u989d\u5b9a\u503c\u3002<\/p>\n

\u25cfTR1(\u70ed\u654f\u7535\u963b<\/u>):<\/strong>\u00a0\u7535\u6e90\u6fc0\u6d3b\u7684\u77ac\u95f4\uff0c\u7531\u4e8eC1(\u4e00\u6b21\u4fa7\u6ee4\u6ce2\u7535\u5bb9)\u77ed\u8def<\/u>\uff0c\u5bfc\u81f4Iin\u7535\u6d41\u5f88\u5927\uff0c\u867d\u7136\u65f6\u95f4\u5f88\u77ed\u6682\uff0c\u4f46\u4ea6\u53ef\u80fd\u5bf9Power\u4ea7\u751f\u4f24\u5bb3\uff0c\u6240\u4ee5\u5fc5\u987b\u5728\u6ee4\u6ce2\u7535\u5bb9\u4e4b\u524d\u52a0\u88c5\u4e00\u4e2a\u70ed\u654f\u7535\u963b\uff0c\u4ee5\u9650\u5236\u5f00\u673a\u77ac\u95f4Iin\u5728Spec\u4e4b\u5185(115V\/30A\uff0c230V\/60A)\uff0c\u4f46\u56e0\u70ed\u654f\u7535\u963b\u4ea6\u4f1a\u6d88\u8017\u529f\u7387\uff0c\u6240\u4ee5\u4e0d\u53ef\u653e\u592a\u5927\u7684\u963b\u503c(\u5426\u5219\u4f1a\u5f71\u54cd\u6548\u7387)\uff0c\u4e00\u822c\u4f7f\u7528SCK053(3A\/5\u03a9)\uff0c\u82e5C1\u7535\u5bb9\u4f7f\u7528\u8f83\u5927\u7684\u503c\uff0c\u5219\u5fc5\u987b\u8003\u8651\u5c06\u70ed\u654f\u7535\u963b\u7684\u963b\u503c\u53d8\u5927(\u4e00\u822c\u4f7f\u7528\u5728\u5927\u74e6\u6570\u7684Power\u4e0a)\u3002<\/p>\n

\u25cfVDR1(\u7a81\u6ce2\u5438\u6536\u5668):<\/strong>\u00a0\u5f53\u96f7\u6781\u53d1\u751f\u65f6\uff0c\u53ef\u80fd\u4f1a\u635f\u574f\u96f6\u4ef6\uff0c\u8fdb\u800c\u5f71\u54cdPower\u7684\u6b63\u5e38\u52a8\u4f5c\uff0c\u6240\u4ee5\u5fc5\u987b\u5728\u9760AC\u8f93\u5165\u7aef (Fuse\u4e4b\u540e)\uff0c\u52a0\u4e0a\u7a81\u6ce2\u5438\u6536\u5668\u6765\u4fdd\u62a4Power(\u4e00\u822c\u5e38\u752807D471K)\uff0c\u4f46\u82e5\u6709\u4ef7\u683c\u4e0a\u7684\u8003\u91cf\uff0c\u53ef\u5148\u5ffd\u7565\u4e0d\u88c5\u3002<\/p>\n

\u25cfCY1\uff0cCY2(Y-Cap):<\/strong>\u00a0Y-Cap\u4e00\u822c\u53ef\u5206\u4e3aY1\u53caY2\u7535\u5bb9\uff0c\u82e5AC Input\u6709FG(3 Pin)\u4e00\u822c\u4f7f\u7528Y2- Cap \uff0c AC Input\u82e5\u4e3a2Pin(\u53ea\u6709L\uff0cN)\u4e00\u822c\u4f7f\u7528Y1-Cap\uff0cY1\u4e0eY2\u7684\u5dee\u5f02\uff0c\u9664\u4e86\u4ef7\u683c\u5916(Y1\u8f83\u6602\u8d35)\uff0c\u7edd\u7f18\u7b49\u7ea7\u53ca\u8010\u538b\u4ea6\u4e0d\u540c(Y1\u79f0\u4e3a\u53cc\u91cd\u7edd\u7f18\uff0c\u7edd\u7f18\u8010\u538b\u7ea6\u4e3aY2\u7684\u4e24\u500d\uff0c\u4e14\u5728\u7535\u5bb9\u7684\u672c\u4f53\u4e0a\u4f1a\u6709\u201c\u56de\u201d\u7b26\u53f7\u6216\u6ce8\u660eY1)\uff0c\u6b64\u7535\u8def<\/u>\u56e0\u4e3a\u6709FG\u6240\u4ee5\u4f7f\u7528Y2-Cap\uff0cY-Cap\u4f1a\u5f71\u54cdEMI\u7279\u6027\uff0c\u4e00\u822c\u800c\u8a00\u8d8a\u5927\u8d8a\u597d\uff0c\u4f46\u987b\u8003\u8651\u6f0f\u7535\u53ca\u4ef7\u683c\u95ee\u9898\uff0c\u6f0f\u7535(Leakage Current )\u5fc5\u987b\u7b26\u5408\u5b89\u89c4\u987b\u6c42(3Pin\u516c\u53f8\u6807\u51c6\u4e3a750uA max)\u3002<\/p>\n

\u25cfCX1(X-Cap)\u3001RX1:<\/strong>\u00a0X-Cap\u4e3a\u9632\u5236EMI\u96f6\u4ef6\uff0cEMI\u53ef\u5206\u4e3aConduc<\/u>TI<\/u>on\u53caRadiaTIon\u4e24\u90e8\u5206\uff0cConducTIon\u89c4\u8303\u4e00\u822c\u53ef\u5206\u4e3a: FCC Part 15J Class B \u3001 CISPR 22(EN55022) Class B \u4e24\u79cd \uff0c FCC\u6d4b\u8bd5<\/u>\u9891\u7387\u5728450K~30MHz\uff0cCISPR 22\u6d4b\u8bd5\u9891\u7387\u5728150K~30MHz\uff0c ConducTIon\u53ef\u5728\u5382\u5185\u4ee5\u9891\u8c31\u5206\u6790\u4eea\u9a8c\u8bc1\uff0cRadiation \u5219\u5fc5\u987b\u5230\u5b9e\u9a8c\u5ba4\u9a8c\u8bc1\uff0cX-Cap \u4e00\u822c\u5bf9\u4f4e\u9891\u6bb5(150K ~ \u6570M\u4e4b\u95f4)\u7684EMI\u9632\u5236\u6709\u6548\uff0c\u4e00\u822c\u800c\u8a00X-Cap\u6108\u5927\uff0cEMI\u9632\u5236\u6548\u679c\u6108\u597d(\u4f46\u4ef7\u683c\u6108\u9ad8)\uff0c\u82e5X-Cap\u57280.22uf\u4ee5\u4e0a(\u5305\u542b0.22uf)\uff0c\u5b89\u89c4\u89c4\u5b9a\u5fc5\u987b\u8981\u6709\u6cc4\u653e\u7535\u963b(RX1\uff0c\u4e00\u822c\u4e3a1.2M\u03a9 1\/4W)\u3002<\/p>\n

\u25cfLF1(Common Choke):<\/strong>\u00a0EMI\u9632\u5236\u96f6\u4ef6\uff0c\u4e3b\u8981\u5f71\u54cdConduction \u7684\u4e2d\u3001\u4f4e\u9891\u6bb5\uff0c\u8bbe\u8ba1\u65f6\u5fc5\u987b\u540c\u65f6\u8003\u8651EMI\u7279\u6027\u53ca\u6e29\u5347\uff0c\u4ee5\u540c\u6837\u5c3a\u5bf8\u7684Common Choke\u800c\u8a00\uff0c\u7ebf\u5708\u6570\u6108\u591a(\u76f8\u5bf9\u7684\u7ebf\u5f84\u6108\u7ec6)\uff0cEMI\u9632\u5236\u6548\u679c\u6108\u597d\uff0c\u4f46\u6e29\u5347\u53ef\u80fd\u8f83\u9ad8\u3002<\/p>\n

\u25cfBD1(\u6574\u6d41\u4e8c\u6781\u7ba1):<\/strong>\u00a0AC\u7535\u6e90\u4ee5\u5168\u6ce2\u6574\u6d41\u7684\u65b9\u5f0f\u8f6c\u6362\u4e3aDC\uff0c\u7531\u53d8\u538b\u5668\u6240\u8ba1\u7b97\u51fa\u7684Iin\u503c\uff0c\u53ef\u77e5\u53ea\u8981\u4f7f\u75281A\/600V\u7684\u6574\u6d41\u4e8c\u6781\u7ba1\uff0c\u56e0\u4e3a\u662f\u5168\u6ce2\u6574\u6d41\u6240\u4ee5\u8010\u538b\u53ea\u8981600V\u5373\u53ef\u3002<\/p>\n

\u25cfC1(\u6ee4\u6ce2\u7535\u5bb9):<\/strong>\u00a0\u7531C1\u7684\u5927\u5c0f(\u7535\u5bb9\u503c)\u53ef\u51b3\u5b9a\u53d8\u538b\u5668\u8ba1\u7b97\u4e2d\u7684Vin(min)\u503c\uff0c\u7535\u5bb9\u91cf\u6108\u5927\uff0cVin(min)\u6108\u9ad8\u4f46\u4ef7\u683c\u4ea6\u6108\u9ad8\uff0c\u6b64\u90e8\u5206\u53ef\u5728\u7535\u8def\u4e2d\u5b9e\u9645\u9a8c\u8bc1Vin(min)\u662f\u5426\u6b63\u786e\uff0c\u82e5AC Input \u8303\u56f4\u572890V~132V (Vc1 \u7535\u538b\u6700\u9ad8\u7ea6190V)\uff0c\u53ef\u4f7f\u7528\u8010\u538b200V\u7684\u7535\u5bb9;\u82e5AC Input \u8303\u56f4\u572890V~264V(\u6216180V~264V)\uff0c\u56e0Vc1\u7535\u538b\u6700\u9ad8\u7ea6380V\uff0c\u6240\u4ee5\u5fc5\u987b\u4f7f\u7528\u8010\u538b400V\u7684\u7535\u5bb9\u3002<\/p>\n

\"8212b12e-3166-11ed-ba43-dac502259ad0\"<\/p>\n

\u25cfD2(\u8f85\u52a9\u7535\u6e90\u4e8c\u6781\u7ba1):<\/strong>\u00a0\u6574\u6d41\u4e8c\u6781\u7ba1\uff0c\u4e00\u822c\u5e38\u7528FR105(1A\/600V)\u6216BYT42M(1A\/1000V)\uff0c\u4e24\u8005\u4e3b\u8981\u5dee\u5f02: 1. \u8010\u538b\u4e0d\u540c(\u5728\u6b64\u5904\u4f7f\u7528\u5dee\u5f02\u65e0\u6240\u8c13) 2. VF\u4e0d\u540c(FR105=1.2V\uff0cBYT42M=1.4V)<\/p>\n

\u25cfR10(\u8f85\u52a9\u7535\u6e90\u7535\u963b):<\/strong>\u00a0\u4e3b\u8981\u7528\u4e8e\u8c03\u6574PWM IC\u7684VCC\u7535\u538b\uff0c\u4ee5\u76ee\u524d\u4f7f\u7528\u76843843\u800c\u8a00\uff0c\u8bbe\u8ba1\u65f6VCC\u5fc5\u987b\u5927\u4e8e8.4V(Min. Load<\/u>\u65f6)\uff0c\u4f46\u4e3a\u8003\u8651\u8f93\u51fa\u77ed\u8def\u7684\u60c5\u51b5\uff0cVCC\u7535\u538b\u4e0d\u53ef\u8bbe\u8ba1\u7684\u592a\u9ad8\uff0c\u4ee5\u514d\u5f53\u8f93\u51fa\u77ed\u8def\u65f6\u4e0d\u4fdd\u62a4(\u6216\u8f93\u5165\u74e6\u6570\u8fc7\u5927)\u3002<\/p>\n

\u25cfC7(\u6ee4\u6ce2\u7535\u5bb9):<\/strong>\u00a0\u8f85\u52a9\u7535\u6e90\u7684\u6ee4\u6ce2\u7535\u5bb9\uff0c\u63d0\u4f9bPWM IC\u8f83\u7a33\u5b9a\u7684\u76f4\u6d41\u7535\u538b\uff0c\u4e00\u822c\u4f7f\u7528100uf\/25V\u7535\u5bb9\u3002<\/p>\n

\u25cfZ1(Zener \u4e8c\u6781\u7ba1):<\/strong>\u00a0\u5f53\u56de\u6388\u5931\u6548\u65f6\u7684\u4fdd\u62a4\u7535\u8def<\/u>\uff0c\u56de\u6388\u5931\u6548\u65f6\u8f93\u51fa\u7535\u538b\u51b2\u9ad8\uff0c\u8f85\u52a9\u7535\u6e90\u7535\u538b\u76f8\u5bf9\u63d0\u9ad8\uff0c\u6b64\u65f6\u82e5\u6ca1\u6709\u4fdd\u62a4\u7535\u8def\uff0c\u53ef\u80fd\u4f1a\u9020\u6210\u96f6\u4ef6\u635f\u574f\uff0c\u82e5\u57283843 VCC\u4e0e3843 Pin3\u811a\u4e4b\u95f4\u52a0\u4e00\u4e2aZener\u00a0Diode<\/u>\uff0c\u5f53\u56de\u6388\u5931\u6548\u65f6Zener Diode\u4f1a\u5d29\u6e83\uff0c\u4f7f\u5f97Pin3\u811a\u63d0\u524d\u5230\u8fbe1V\uff0c\u4ee5\u6b64\u53ef\u9650\u5236\u8f93\u51fa\u7535\u538b\uff0c\u8fbe\u5230\u4fdd\u62a4\u96f6\u4ef6\u7684\u76ee\u7684.Z1\u503c\u7684\u5927\u5c0f\u53d6\u51b3\u4e8e\u8f85\u52a9\u7535\u6e90\u7684\u9ad8\u4f4e\uff0cZ1\u7684\u51b3\u5b9a\u4ea6\u987b\u8003\u8651\u662f\u5426\u8d85\u8fc7Q1\u7684VGS\u8010\u538b\u503c\uff0c\u539f\u5219\u4e0a\u4f7f\u7528\u516c\u53f8\u7684\u73b0\u6709\u6599(\u4e00\u822c\u4f7f\u75281\/2W\u5373\u53ef)\u3002<\/p>\n

\u25cfR2(\u6fc0\u6d3b\u7535\u963b):<\/strong>\u00a0\u63d0\u4f9b3843\u7b2c\u4e00\u6b21\u6fc0\u6d3b\u7684\u8def\u5f84\uff0c\u7b2c\u4e00\u6b21\u6fc0\u6d3b\u65f6\u900f\u8fc7R2\u5bf9C7\u5145\u7535\uff0c\u4ee5\u63d0\u4f9b3843 VCC\u6240\u9700\u7684\u7535\u538b\uff0cR2\u963b\u503c\u8f83\u5927\u65f6\uff0cturn on\u7684\u65f6\u95f4\u8f83\u957f\uff0c\u4f46\u77ed\u8def\u65f6Pin\u74e6\u6570\u8f83\u5c0f\uff0cR2\u963b\u503c\u8f83\u5c0f\u65f6\uff0cturn on\u7684\u65f6\u95f4\u8f83\u77ed\uff0c\u77ed\u8def\u65f6Pin\u74e6\u6570\u8f83\u5927\uff0c\u4e00\u822c\u4f7f\u7528220K\u03a9\/2W M.O\u3002<\/p>\n

\u25cfR4 (Line Compensation):<\/strong>\u00a0\u9ad8\u3001\u4f4e\u538b\u8865\u507f\u7528\uff0c\u4f7f3843 Pin3\u811a\u572890V\/47Hz\u53ca264V\/63Hz\u63a5\u8fd1\u4e00\u81f4(\u4e00\u822c\u4f7f\u7528750K\u03a9~1.5M\u03a9 1\/4W\u4e4b\u95f4)\u3002<\/p>\n

\u25cfR3\uff0cC6\uff0cD1 (Snubber):<\/strong>\u00a0\u6b64\u4e09\u4e2a\u96f6\u4ef6\u7ec4\u6210Snubber\uff0c\u8c03\u6574Snubber\u7684\u76ee\u7684:1.\u5f53Q1 off\u77ac\u95f4\u4f1a\u6709Spike\u4ea7\u751f\uff0c\u8c03\u6574Snubber\u53ef\u4ee5\u786e\u4fddSpike\u4e0d\u4f1a\u8d85\u8fc7Q1\u7684\u8010\u538b\u503c\uff0c2.\u8c03\u6574Snubber\u53ef\u6539\u5584EMI.\u4e00\u822c\u800c\u8a00\uff0cD1\u4f7f\u75281N4007(1A\/1000V)EMI\u7279\u6027\u4f1a\u8f83\u597d.R3\u4f7f\u75282W M.O.\u7535\u963b\uff0cC6\u7684\u8010\u538b\u503c\u4ee5\u4e24\u7aef\u5b9e\u9645\u538b\u5dee\u4e3a\u51c6(\u4e00\u822c\u4f7f\u7528\u8010\u538b500V\u7684\u9676\u8d28\u7535\u5bb9)\u3002<\/p>\n

\"822b3bf4-3166-11ed-ba43-dac502259ad0\"<\/p>\n

\u25cfQ1(N-MOS):<\/strong>\u00a0\u76ee\u524d\u5e38\u4f7f\u7528\u7684\u4e3a3A\/600V\u53ca6A\/600V\u4e24\u79cd\uff0c6A\/600V\u7684RDS(ON)\u8f833A\/600V\u5c0f\uff0c\u6240\u4ee5\u6e29\u5347\u4f1a\u8f83\u4f4e\uff0c\u82e5IDS\u7535\u6d41\u672a\u8d85\u8fc73A\uff0c\u5e94\u8be5\u5148\u4ee53A\/600V\u4e3a\u8003\u91cf\uff0c\u5e76\u4ee5\u6e29\u5347\u8bb0\u5f55\u6765\u9a8c\u8bc1\uff0c\u56e0\u4e3a6A\/600V\u7684\u4ef7\u683c\u9ad8\u4e8e3A\/600V\u8bb8\u591a\uff0cQ1\u7684\u4f7f\u7528\u4ea6\u9700\u8003\u8651VDS\u662f\u5426\u8d85\u8fc7\u989d\u5b9a\u503c\u3002<\/p>\n

\u25cfR8:<\/strong>\u00a0R8\u7684\u4f5c\u7528\u5728\u4fdd\u62a4Q1\uff0c\u907f\u514dQ1\u5448\u73b0\u6d6e\u63a5\u72b6\u6001\u3002<\/p>\n

\u25cfR7(Rs<\/u>\u7535\u963b):<\/strong>\u00a03843 Pin3\u811a\u7535\u538b\u6700\u9ad8\u4e3a1V\uff0cR7\u7684\u5927\u5c0f\u987b\u4e0eR4\u914d\u5408\uff0c\u4ee5\u8fbe\u5230\u9ad8\u4f4e\u538b\u5e73\u8861\u7684\u76ee\u7684\uff0c\u4e00\u822c\u4f7f\u75282W M.O.\u7535\u963b\uff0c\u8bbe\u8ba1\u65f6\u5148\u51b3\u5b9aR7\u540e\u518d\u52a0\u4e0aR4\u8865\u507f\uff0c\u4e00\u822c\u5c063843 Pin3\u811a\u7535\u538b\u8bbe\u8ba1\u57280.85V~0.95V\u4e4b\u95f4(\u89c6\u74e6\u6570\u800c\u5b9a\uff0c\u82e5\u74e6\u6570\u8f83\u5c0f\u5219\u4e0d\u80fd\u592a\u63a5\u8fd11V\uff0c\u4ee5\u514d\u56e0\u96f6\u4ef6\u8bef\u5dee\u800c\u9876\u52301V)\u3002<\/p>\n

\u25cfR5\uff0cC3(RC filter):<\/strong>\u00a0\u6ee4\u96643843 Pin3\u811a\u7684\u566a\u58f0\uff0cR5\u4e00\u822c\u4f7f\u75281K\u03a9 1\/8W\uff0cC3\u4e00\u822c\u4f7f\u7528102P\/50V\u7684\u9676\u8d28\u7535\u5bb9\uff0cC3\u82e5\u4f7f\u7528\u7535\u5bb9\u503c\u8f83\u5c0f\u8005\uff0c\u91cd\u8f7d\u53ef\u80fd\u4e0d\u5f00\u673a(\u56e0\u4e3a3843 Pin3\u77ac\u95f4\u9876\u52301V);\u82e5\u4f7f\u7528\u7535\u5bb9\u503c\u8f83\u5927\u8005\uff0c\u4e5f\u8bb8\u4f1a\u6709\u8f7b\u8f7d\u4e0d\u5f00\u673a\u53ca\u77ed\u8defPin\u8fc7\u5927\u7684\u95ee\u9898\u3002<\/p>\n

\u25cfR9(Q1 Gate\u7535\u963b ):<\/strong>\u00a0R9\u7535\u963b\u7684\u5927\u5c0f\uff0c\u4f1a\u5f71\u54cd\u5230EMI\u53ca\u6e29\u5347\u7279\u6027\uff0c\u4e00\u822c\u800c\u8a00\u963b\u503c\u5927\uff0cQ1 turn on \/ turn off\u7684\u901f\u5ea6\u8f83\u6162\uff0cEMI\u7279\u6027\u8f83\u597d\uff0c\u4f46Q1\u7684\u6e29\u5347\u8f83\u9ad8\u3001\u6548\u7387\u8f83\u4f4e(\u4e3b\u8981\u662f\u56e0\u4e3aturn off\u901f\u5ea6\u8f83\u6162);\u82e5\u963b\u503c\u8f83\u5c0f\uff0c Q1 turn on \/ turn off\u7684\u901f\u5ea6\u8f83\u5feb\uff0cQ1\u6e29\u5347\u8f83\u4f4e\u3001\u6548\u7387\u8f83\u9ad8\uff0c\u4f46EMI\u8f83\u5dee\uff0c\u4e00\u822c\u4f7f\u752851\u03a9-150\u03a9 1\/8W\u3002<\/p>\n

\u25cfR6\uff0cC4(\u63a7\u5236\u632f\u8361\u9891\u7387):<\/strong>\u00a0\u51b3\u5b9a3843\u7684\u5de5\u4f5c\u9891\u7387\uff0c\u53ef\u7531Data Sheet\u5f97\u5230R\u3001C\u7ec4\u6210\u7684\u5de5\u4f5c\u9891\u7387\uff0cC4\u4e00\u822c\u4e3a10nf\u7684\u7535\u5bb9(\u8bef\u5dee\u4e3a5%)\uff0cR6\u4f7f\u7528\u7cbe\u5bc6\u7535\u963b\uff0c\u4ee5DA-14B33\u4e3a\u4f8b\uff0cC4\u4f7f\u7528103P\/50V PE\u7535\u5bb9\uff0cR6\u4e3a3.74K\u03a9 1\/8W\u7cbe\u5bc6\u7535\u963b\uff0c\u632f\u8361\u9891\u7387\u7ea6\u4e3a45 KHz\u3002<\/p>\n

\u25cfC5:<\/strong>\u00a0\u529f\u80fd\u7c7b\u4f3cRC filter\uff0c\u4e3b\u8981\u529f\u7528\u5728\u4e8e\u4f7f\u9ad8\u538b\u8f7b\u8f7d\u8f83\u4e0d\u6613\u632f\u8361\uff0c\u4e00\u822c\u4f7f\u7528101P\/50V\u9676\u8d28\u7535\u5bb9\u3002<\/p>\n

\u25cfU1(PWM IC):<\/strong>\u00a03843\u662fPWM IC\u7684\u4e00\u79cd\uff0c\u7531Photo Coupler (U2)\u56de\u6388\u4fe1\u53f7\u63a7\u5236Duty Cycle\u7684\u5927\u5c0f\uff0cPin3\u811a\u5177\u6709\u9650\u6d41\u7684\u4f5c\u7528(\u6700\u9ad8\u7535\u538b1V)\uff0c\u76ee\u524d\u6240\u7528\u76843843\u4e2d\uff0c\u6709KA3843(SAMSUNG)\u53caUC3843BN(S.T.)\u4e24\u79cd\uff0c\u4e24\u8005\u811a\u4f4d\u76f8\u540c\uff0c\u4f46\u4ea7\u751f\u7684\u632f\u8361\u9891\u7387\u7565\u6709\u5dee\u5f02\uff0cUC3843BN\u8f83KA3843\u5feb\u4e86\u7ea62KHz\uff0cfT\u7684\u589e\u52a0\u4f1a\u884d\u751f\u51fa\u4e00\u4e9b\u95ee\u9898(\u4f8b\u5982:EMI\u95ee\u9898\u3001\u77ed\u8def\u95ee\u9898)\uff0c\u56e0KA3843\u8f83\u96be\u4e70\uff0c\u6240\u4ee5\u65b0\u673a\u79cd\u8bbe\u8ba1\u65f6\uff0c\u5c3d\u91cf\u4f7f\u7528UC3843BN\u3002<\/p>\n

\u25cfR1\u3001R11\u3001R12\u3001C2(\u4e00\u6b21\u4fa7\u56de\u8def\u589e\u76ca\u63a7\u5236):<\/strong>\u00a03843\u5185\u90e8\u6709\u4e00\u4e2aError AMP(\u8bef\u5dee\u653e\u5927\u5668<\/u>)\uff0cR1\u3001R11\u3001R12\u3001C2\u53caError AMP\u7ec4\u6210\u4e00\u4e2a\u8d1f\u56de\u6388\u7535\u8def\uff0c\u7528\u6765\u8c03\u6574\u56de\u8def\u589e\u76ca\u7684\u7a33\u5b9a\u5ea6\uff0c\u56de\u8def\u589e\u76ca\uff0c\u8c03\u6574\u4e0d\u6070\u5f53\u53ef\u80fd\u4f1a\u9020\u6210\u632f\u8361\u6216\u8f93\u51fa\u7535\u538b\u4e0d\u6b63\u786e\uff0c\u4e00\u822cC2\u4f7f\u7528\u7acb\u5f0f\u79ef\u5c42\u7535\u5bb9(\u6e29\u5ea6\u6301\u6027\u8f83\u597d)\u3002<\/p>\n

\"8238e3bc-3166-11ed-ba43-dac502259ad0\"<\/p>\n

\u25cfU2(Photo coupler)<\/strong>\u00a0\u5149\u8026<\/u>\u5408\u5668(Photo coupler)\u4e3b\u8981\u5c06\u4e8c\u6b21\u4fa7\u7684\u4fe1\u53f7\u8f6c\u6362\u5230\u4e00\u6b21\u4fa7(\u4ee5\u7535\u6d41\u7684\u65b9\u5f0f)\uff0c\u5f53\u4e8c\u6b21\u4fa7\u7684TL431\u5bfc\u901a\u540e\uff0cU2\u5373\u4f1a\u5c06\u4e8c\u6b21\u4fa7\u7684\u7535\u6d41\u4f9d\u6bd4\u4f8b\u8f6c\u6362\u5230\u4e00\u6b21\u4fa7\uff0c\u6b64\u65f63843\u7531Pin6 (output)\u8f93\u51faoff\u7684\u4fe1\u53f7(Low)\u6765\u5173\u95edQ1\uff0c\u4f7f\u7528Photo coupler\u7684\u539f\u56e0\uff0c\u662f\u4e3a\u4e86\u7b26\u5408\u5b89\u89c4\u9700\u6c42(primacy to secondary\u7684\u8ddd\u79bb\u81f3\u5c11\u97005.6mm)<\/p>\n

\u25cfR13(\u4e8c\u6b21\u4fa7\u56de\u8def\u589e\u76ca\u63a7\u5236):<\/strong>\u00a0\u63a7\u5236\u6d41\u8fc7Photo coupler\u7684\u7535\u6d41\uff0cR13\u963b\u503c\u8f83\u5c0f\u65f6\uff0c\u6d41\u8fc7Photo coupler\u7684\u7535\u6d41\u8f83\u5927\uff0cU2\u8f6c\u6362\u7535\u6d41\u8f83\u5927\uff0c\u56de\u8def\u589e\u76ca\u8f83\u5feb(\u9700\u8981\u786e\u8ba4\u662f\u5426\u4f1a\u9020\u6210\u632f\u8361)\uff0cR13\u963b\u503c\u8f83\u5927\u65f6\uff0c\u6d41\u8fc7Photo coupler\u7684\u7535\u6d41\u8f83\u5c0f\uff0cU2\u8f6c\u6362\u7535\u6d41\u8f83\u5c0f\uff0c\u56de\u8def\u589e\u76ca\u8f83\u6162\uff0c\u867d\u7136\u8f83\u4e0d\u6613\u9020\u6210\u632f\u8361\uff0c\u4f46\u9700\u6ce8\u610f\u8f93\u51fa\u7535\u538b\u662f\u5426\u6b63\u5e38\u3002<\/p>\n

\u25cfU3(TL431)\u3001R15\u3001R16\u3001R18<\/strong>\u00a0\u8c03\u6574\u8f93\u51fa\u7535\u538b\u7684\u5927\u5c0f\uff0c<\/p>\n

\"8248612a-3166-11ed-ba43-dac502259ad0\"<\/p>\n

\uff0c\u8f93\u51fa\u7535\u538b\u4e0d\u53ef\u8d85\u8fc738V(\u56e0\u4e3aTL431 VKA\u6700\u5927\u4e3a36V\uff0c\u82e5\u518d\u52a0Photo coupler\u7684VF\u503c\uff0c\u5219Vo\u5e94\u572838V\u4ee5\u4e0b\u8f83\u5b89\u5168)\uff0cTL431\u7684Vref\u4e3a2.5V\uff0cR15\u53caR16\u5e76\u8054\u7684\u76ee\u7684\u4f7f\u8f93\u51fa\u7535\u538b\u80fd\u5fae\u8c03\uff0c\u4e14R15\u4e0eR16\u5e76\u8054\u540e\u7684\u503c\u4e0d\u53ef\u592a\u5927(\u5c3d\u91cf\u57282K\u03a9\u4ee5\u4e0b)\uff0c\u4ee5\u514d\u9020\u6210\u8f93\u51fa\u4e0d\u51c6\u3002<\/p>\n

\u25cfR14\uff0cC9(\u4e8c\u6b21\u4fa7\u56de\u8def\u589e\u76ca\u63a7\u5236):<\/strong>\u00a0\u63a7\u5236\u4e8c\u6b21\u4fa7\u7684\u56de\u8def\u589e\u76ca\uff0c\u4e00\u822c\u800c\u8a00\u5c06\u7535\u5bb9\u653e\u5927\u4f1a\u4f7f\u589e\u76ca\u53d8\u6162\uff1b\u7535\u5bb9\u653e\u5c0f\u4f1a\u4f7f\u589e\u76ca\u53d8\u5feb\uff0c\u7535\u963b\u7684\u7279\u6027\u5219\u521a\u597d\u4e0e\u7535\u5bb9\u76f8\u53cd\uff0c\u7535\u963b\u653e\u5927\u589e\u76ca\u53d8\u5feb\uff1b\u7535\u963b\u653e\u5c0f\u589e\u76ca\u53d8\u6162\uff0c\u81f3\u4e8e\u4f55\u8c13\u589e\u76ca\u8c03\u6574\u7684\u6700\u4f73\u503c\uff0c\u5219\u53ef\u4ee5Dynamic load\u6765\u91cf\u6d4b\uff0c\u5373\u53ef\u53d6\u5f97\u4e00\u4e2a\u6700\u4f73\u503c\u3002<\/p>\n

\u25cfD4(\u6574\u6d41\u4e8c\u6781\u7ba1):<\/strong>\u00a0\u56e0\u4e3a\u8f93\u51fa\u7535\u538b\u4e3a3.3V\uff0c\u800c\u8f93\u51fa\u7535\u538b\u8c03\u6574\u5668(Output Voltage Regulator)\u4f7f\u7528TL431(Vref=2.5V)\u800c\u975eTL432(Vref=1.25V)\uff0c\u6240\u4ee5\u5fc5\u987b\u591a\u589e\u52a0\u4e00\u7ec4\u7ed5\u7ec4\u63d0\u4f9bPhoto coupler\u53caTL431\u6240\u9700\u7684\u7535\u6e90\uff0c\u56e0\u4e3aU2\u53caU3\u6240\u9700\u7684\u7535\u6d41\u4e0d\u5927(\u7ea610mA\u5de6\u53f3)\uff0c\u4e8c\u6781\u7ba1\u8010\u538b\u503c100V\u5373\u53ef\uff0c\u6240\u4ee5\u53ea\u9700\u4f7f\u75281N4148(0.15A\/100V)\u3002<\/p>\n

\u25cfC8(\u6ee4\u6ce2\u7535\u5bb9):<\/strong>\u00a0\u56e0\u4e3aU2\u53caU3\u6240\u9700\u7684\u7535\u6d41\u4e0d\u5927\uff0c\u6240\u4ee5\u53ea\u8981\u4f7f\u75281u\/50V\u5373\u53ef\u3002<\/p>\n

\u25cfD5(\u6574\u6d41\u4e8c\u6781\u7ba1):<\/strong>\u00a0\u8f93\u51fa\u6574\u6d41\u4e8c\u6781\u7ba1\uff0cD5\u7684\u4f7f\u7528\u9700\u8003\u8651: a. \u7535\u6d41\u503c b. \u4e8c\u6781\u7ba1\u7684\u8010\u538b\u503c \u4ee5\u6b64\u4e3a\u4f8b\uff0c\u8f93\u51fa\u7535\u6d414A\uff0c\u4f7f\u752810A\u7684\u4e8c\u6781\u7ba1(Schottky)\u5e94\u8be5\u53ef\u4ee5\uff0c\u4f46\u7ecf\u70b9\u6e29\u5347\u9a8c\u8bc1\u540e\u53d1\u73b0D5\u6e29\u5ea6\u504f\u9ad8\uff0c\u6240\u4ee5\u5fc5\u987b\u6362\u4e3a15A\u7684\u4e8c\u6781\u7ba1\uff0c\u56e0\u4e3a10A\u7684VF\u8f8315A\u7684VF \u503c\u5927\u3002\u8010\u538b\u90e8\u520640V\u7ecf\u9a8c\u8bc1\u540e\u7b26\u5408\uff0c\u56e0\u6b64\u6700\u540e\u4f7f\u752815A\/40V Schottky\u3002<\/p>\n

\u25cfC10\uff0cR17(\u4e8c\u6b21\u4fa7snubber) :<\/strong>\u00a0D5\u5728\u622a\u6b62\u7684\u77ac\u95f4\u4f1a\u6709spike\u4ea7\u751f\uff0c\u82e5spike\u8d85\u8fc7\u4e8c\u6781\u7ba1(D5)\u7684\u8010\u538b\u503c\uff0c\u4e8c\u6781\u7ba1\u4f1a\u6709\u88ab\u51fb\u7a7f<\/u>\u7684\u5371\u9669\uff0c\u8c03\u6574snubber\u53ef\u9002\u5f53\u7684\u51cf\u5c11spike\u7684\u7535\u538b\u503c\uff0c\u9664\u4fdd\u62a4\u4e8c\u6781\u7ba1\u5916\u4ea6\u53ef\u6539\u5584EMI\uff0cR17\u4e00\u822c\u4f7f\u75281\/2W\u7684\u7535\u963b\uff0cC10\u4e00\u822c\u4f7f\u7528\u8010\u538b500V\u7684\u9676\u8d28\u7535\u5bb9\uff0csnubber\u8c03\u6574\u7684\u8fc7\u7a0b(264V\/63Hz)\u9700\u6ce8\u610fR17,C10\u662f\u5426\u4f1a\u8fc7\u70ed\uff0c\u5e94\u907f\u514d\u6b64\u79cd\u60c5\u51b5\u53d1\u751f\u3002<\/p>\n

\u25cfC11\uff0cC13(\u6ee4\u6ce2\u7535\u5bb9):<\/strong>\u00a0\u4e8c\u6b21\u4fa7\u7b2c\u4e00\u7ea7\u6ee4\u6ce2\u7535\u5bb9\uff0c\u5e94\u4f7f\u7528\u5185\u963b\u8f83\u5c0f\u7684\u7535\u5bb9(LXZ\uff0cYXA\u2026)\uff0c\u7535\u5bb9\u9009\u62e9\u662f\u5426\u6d3d\u5f53\u53ef\u4f9d\u4ee5\u4e0b\u4e09\u70b9\u6765\u5224\u5b9a: a. \u8f93\u51faRipple\u7535\u538b\u662f\u7b26\u5408\u89c4\u683c b. \u7535\u5bb9\u6e29\u5ea6\u662f\u5426\u8d85\u8fc7\u989d\u5b9a\u503c c. \u7535\u5bb9\u503c\u4e24\u7aef\u7535\u538b\u662f\u5426\u8d85\u8fc7\u989d\u5b9a\u503c<\/p>\n

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\u25cfL3\uff0cC12(LC\u6ee4\u6ce2\u7535\u8def):<\/strong>\u00a0LC\u6ee4\u6ce2\u7535\u8def\u4e3a\u7b2c\u4e8c\u7ea7\u6ee4\u6ce2\uff0c\u5728\u4e0d\u5f71\u54cd\u7ebf\u8def\u7a33\u5b9a\u7684\u60c5\u51b5\u4e0b\uff0c\u4e00\u822c\u4f1a\u5c06L3 \u653e\u5927(\u7535\u611f<\/u>\u91cf\u8f83\u5927)\uff0c\u5982\u6b64C12\u53ef\u4f7f\u7528\u8f83\u5c0f\u7684\u7535\u5bb9\u503c\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

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