{"id":7763,"date":"2021-12-07T18:02:36","date_gmt":"2021-12-07T10:02:36","guid":{"rendered":"http:\/\/www.szryc.com\/?p=7763"},"modified":"2021-12-07T18:06:08","modified_gmt":"2021-12-07T10:06:08","slug":"%e6%80%9d%e7%9d%bf%e8%be%be%e4%b8%bb%e6%8e%a845w-pd%e5%85%85%e7%94%b5%e5%99%a8%e6%96%b9%e6%a1%88%e8%bd%ac%e6%8d%a2%e6%95%88%e7%8e%87%e6%9e%81%e9%ab%98","status":"publish","type":"post","link":"http:\/\/www.szryc.com\/?p=7763","title":{"rendered":"\u601d\u777f\u8fbe\u4e3b\u63a845W PD\u5145\u7535\u5668\u65b9\u6848\u8f6c\u6362\u6548\u7387\u6781\u9ad8"},"content":{"rendered":"

\u6982\u8ff0<\/strong><\/h2>\n

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01\u3001\u6837\u673a\u4ecb\u7ecd<\/strong><\/h2>\n

\u8be5\u6d4b\u8bd5<\/u>\u62a5\u544a\u662f\u57fa\u4e8e\u4e00\u4e2a\u80fd\u9002\u7528\u4e8e\u5bbd\u8f93\u5165\u7535\u538b\u8303\u56f4\uff0c\u8f93\u51fa\u529f\u738745W PD\u65b9\u6848\uff0c\u8f93\u51fa5V3A\u30019V3A\u300112V3A\u300115V3A\u300120V2.25A\u7684\u5de5\u7a0b\u6837\u673a\uff0c\u63a7\u5236IC\u91c7\u7528\u4e86\u601d\u777f\u8fbe\u4e3b\u63a8\u7684CR6900A\u3002<\/p>\n

\u00a0<\/div>\n
\"pYYBAGGp85mAS4fuAAhCltEtnDs926\"\"poYBAGGp86SAP3N1AAxonEPEFfg694\"<\/div>\n

CR6900A_45W PD\u5de5\u7a0b\u6837\u673a\u793a\u610f\u56fe<\/p>\n

\u5173\u4e8eCR6900A<\/h2>\n

CR6900A\u662f\u4e00\u6b3e\u9ad8\u96c6\u6210\u3001\u9ad8\u6027\u80fd\u7535\u6d41<\/u>\u578bPWM\u63a7\u5236\u5668\uff0c\u5177\u6709\u4f4e\u529f\u8017\u3001\u5bbdVDD\u5de5\u4f5c\u7535\u538b\u7279\u70b9\uff0c\u9002\u5408\u5e94\u7528\u4e8e\u8f93\u51fa\u8303\u56f4\u5bbd\u7684PD\u5145\u7535\u5668\u65b9\u6848\u3002\u8be5\u63a7\u5236\u7535\u8def<\/u>\u5728\u6574\u4e2a\u8d1f\u8f7d\u8303 \u56f4\u5185\u90fd\u6709\u7740\u6bd4\u8f83\u9ad8\u7684\u8f6c\u6362\u6548\u7387\u3002\u82af\u7247\u5185\u90e8\u9891\u7387\u4f18\u5316\u5b9e\u73b0\u4e86\u4f18\u5f02\u7684EMI\u6548\u679c\uff0c\u9650\u5236\u6700\u5c0f\u5de5\u4f5c\u9891\u7387\u4e3a22kHz\uff0c\u907f\u514d\u5de5\u4f5c\u65f6\u4ea7\u751f\u566a\u58f0\u3002CR6900A\u63d0\u4f9b\u4e86\u975e\u5e38\u5b8c\u6574\u7684\u4fdd\u62a4\u529f\u80fd\uff0c\u5305\u62ec\u9010\u5468\u671f\u8fc7\u6d41\u4fdd\u62a4(OCP)\uff0c\u8fc7\u8f7d\u4fdd\u62a4\uff08OLP\uff09\uff0c\u5916\u90e8\u8fc7\u6e29\u4fdd\u62a4\u4ee5\u53ca\u5185\u90e8\u8fc7\u6e29\u4fdd\u62a4\uff0c\u8f93\u51fa\u77ed\u8def<\/u>\u4fdd\u62a4\uff08SCP\uff09\uff0c\u8f93\u51fa\u4e8c\u6781\u7ba1<\/u>\u77ed\u8def\u4fdd\u62a4\uff0c\u8f93\u51fa\u8fc7\u538b\u4fdd\u62a4\u548cVDD\u8fc7\u538b\u4fdd\u62a4\u7b49\u3002CR6900A\u91c7\u7528 SOT23-6\u5c01\u88c5\u3002<\/p>\n

\u4e3b\u8981\u7279\u70b9<\/strong><\/p>\n

\u25cf\u8f83\u4f4e\u7684\u542f\u52a8\u7535\u6d41<\/p>\n

\u25cf\u5185\u7f6e\u8f6f\u542f\u52a8\u51cf\u5c11MOSFET<\/u>\u5e94\u529b<\/u><\/p>\n

\u25cfCCM+QR+CRM\u63a7\u5236\u6a21\u5f0f<\/p>\n

\u25cf\u5185\u5efa\u540c\u6b65\u659c\u5761\u8865\u507f\uff0c\u6d88\u9664\u6b21\u8c10\u6ce2\u9707\u8361<\/p>\n

\u25cf\u5185\u5efa\u9891\u7387\u6296\u52a8\u529f\u80fd\uff0c\u964d\u4f4eEMI<\/p>\n

\u25cf\u5185\u7f6e65kHz\u548c45kHz\u5f00\u5173<\/u>\u9891\u7387<\/p>\n

\u25cf\u5185\u7f6e125kHz\u500d\u9891\u5de5\u4f5c\u6a21\u5f0f<\/p>\n

\u25cf\u8f7b\u8f7d\u964d\u4f4e\u5de5\u4f5c\u9891\u7387<\/p>\n

\u25cf\u53ef\u7f16\u7a0b\u5916\u7f6e\u8fc7\u6e29\u4fdd\u62a4<\/p>\n

\u25cf\u6700\u5927\u8f93\u51fa\u7535\u6d41\u9650\u5236<\/p>\n

\u25cf\u81ea\u9002\u5e94\u73af\u8def\u63a7\u5236<\/p>\n

\u25cfVDD\u8fc7\u538b\u4fdd\u62a4\u548c\u8f93\u51fa\u8fc7\u538b\u4fdd\u62a4\u529f\u80fd<\/p>\n

\u25cf\u5185\u7f6e\u524d\u6cbf\u6d88\u9690\u7535\u8def<\/p>\n

\u25cf\u5185\u7f6e\u8f93\u51fa\u4e8c\u6781\u7ba1\u77ed\u8def\u4fdd\u62a4<\/p>\n

\u25cf\u5185\u7f6e\u8fc7\u6e29\u4fdd\u62a4<\/p>\n

\u25cf\u8fc7\u8f7d\u4fdd\u62a4<\/p>\n

\u25cfSOT23-6L\u5c01\u88c5<\/p>\n

\u57fa\u672c\u5e94\u7528<\/strong><\/p>\n

PD\u7535\u6e90<\/p>\n

\u5178\u578b\u5e94\u7528<\/strong><\/p>\n

\"pYYBAGGp86WAbOUtAAGAR84hJWA710\"<\/div>\n

\u7ba1\u811a\u6392\u5217<\/strong><\/p>\n

\"poYBAGGp86uAJPpwAAA4HbGwdAw149\"<\/div>\n

\u7ba1\u811a\u63cf\u8ff0<\/strong><\/p>\n

\"pYYBAGGp87SAMME8AAKFNkBcrCQ601\"<\/div>\n

\u8be5\u6837\u673a\u5c3a\u5bf8\u4e3a70.6mm\u00d740mm\uff0c\u57285V\u8f93\u51fa\u65f6AC264V\u8f93\u5165\u5f85\u673a\u529f\u8017<75mW\uff0c 115VAC\/60HZ, 230VAC\/50HZ \u8f93\u5165\u65f6\u7684\u5e73\u5747\u6548\u7387\u80fd\u591f\u6ee1\u8db3\u201c\u80fd\u6e90\u4e4b\u661f V2.0 VI\u7ea7\u80fd\u6548\u201d\u548c\u6b27\u6d32 COCT2 \u6807\u51c6\uff1b\u5177\u6709\u201cOCP\u3001OTP\u3001 VDD_OVP\u3001UVLO \u201d\u7b49\u591a\u79cd\u4fdd\u62a4\u529f\u80fd\uff1b\u8f6f\u542f\u52a8\u529f\u80fd\u53ef\u4ee5\u51cf\u5c11\u7cfb\u7edf\u542f\u52a8\u65f6MOSFET\u7684\u5e94\u529b\uff0c\u524d\u6cbf\u6d88\u9690\u65f6\u95f4\u7b80\u5316\u4e86\u7cfb\u7edf\u5e94\u7528\u3002\u901a\u8fc7\u9891\u7387\u6296\u52a8\u548c\u8f6f\u9a71\u52a8\u7535\u8def\u7684\u8bbe\u8ba1\uff0c\u964d\u4f4e\u5f00\u5173\u566a\u58f0\uff0c\u7b80\u5316\u4e86EMI\u8bbe\u8ba1\uff0cCR6900A\u8fd8\u63d0\u4f9bVDD\u7535\u538b\u4ece8.5V\u81f354V\u66f4\u5bbd\u7684\u5de5\u4f5c\u8303\u56f4\u3002\u00a0<\/p>\n

\u6837\u673a\u7684\u53d8\u538b\u5668<\/u>\uff0c\u91c7\u7528\u4e86RM8\u78c1\u82af<\/u>\uff08PC40\u6750\u8d28\uff09\uff0c\u53d8\u538b\u5668\u7ed5\u5236\u5de5\u827a\u90e8\u5206\uff0c\u8bf7\u89c1\u540e\u6587\u8be6\u7ec6\u8bf4\u660e\u3002<\/p>\n

02\u3001\u6837\u673a\u7279\u6027<\/strong><\/h2>\n

\u4ee5\u4e0b\u8868\u683c\u4e3a\u5de5\u7a0b\u6837\u673a\u7684\u4e3b\u8981\u7279\u6027\uff0c\u5177\u4f53\u6d4b\u8bd5\u65b9\u6cd5\u5728\u7b2c4\u7ae0\u8282\u4e2d\u6709\u8be6\u7ec6\u8bf4\u660e\u3002<\/p>\n

2.1\u3001\u8f93\u5165\u7279\u6027<\/strong><\/p>\n

\"pYYBAGGp882AaCNVAACjOMC1Gkw798\"<\/div>\n

2.2\u3001\u8f93\u51fa\u7279\u6027<\/strong><\/p>\n

\"poYBAGGp89CABc5JAALE9PZopXk662\"<\/div>\n

2.3\u3001\u6574\u673a\u53c2\u6570\uff1a<\/strong><\/p>\n

\"pYYBAGGp89KAWNeDAAGdT4-P61M363\"<\/div>\n

2.4\u3001\u4fdd\u62a4\u529f\u80fd\u6d4b\u8bd5\uff1a<\/strong><\/p>\n

\"poYBAGGp89SAah1PAAFMMmYaLQ0386\"<\/div>\n

2.5\u3001\u5de5\u4f5c\u73af\u5883\uff1a<\/strong><\/p>\n

\"pYYBAGGp89SAM5pEAAB4x76hl8k420\"<\/div>\n

2.6\u3001\u6d4b\u8bd5\u4eea\u5668<\/strong><\/p>\n

\"poYBAGGp89WAPcddAAEkBlOROv8774\"<\/div>\n

03\u3001\u6837\u673a\u7ed3\u6784\u4fe1\u606f<\/strong><\/h2>\n

\u672c\u5c0f\u8282\u5c55\u793a\u4e86\u5de5\u7a0b\u6837\u673a\u7684\u7535\u8def\u3001\u7248\u56fe\u7ed3\u6784\uff0c\u53d8\u538b\u5668\u7ed3\u6784\u53ca\u5de5\u827a\u3002<\/p>\n

3.1\u3001\u7535\u8def\u539f\u7406\u56fe\u53ca\u00a0PCB<\/u>\u00a0\u7248\u56fe\uff1a<\/strong><\/p>\n

\uff081\uff09\u539f\u7406\u56fe\uff1a<\/p>\n

\"poYBAGGp8_GAII4aAAE04GvgshY747\"<\/div>\n

\uff082\uff09PCB\u7248\u56fe\uff1a<\/p>\n

\"pYYBAGGp8_mARPMDAAGsthKNce0845\"\"poYBAGGp8_-APpEtAAHnapO-wbw708\"\"pYYBAGGp9AGAD8oKAAH_SF5CPsg482\"\"poYBAGGp9ASAOT85AAMZ8KMp4Fc966\"<\/div>\n

3.2\u3001\u53d8\u538b\u5668\u7ed5\u5236\u5de5\u827a\uff1a<\/p>\n

\uff081\uff09\u53d8\u538b\u5668\u7535\u6027\u53ca\u7ed3\u6784\u793a\u610f\u56fe\uff1a<\/p>\n

\"pYYBAGGp9AaAUY0dAAJOatCWO88625\"<\/div>\n

\uff082\uff09\u89c4\u683c\u53c2\u6570\uff1a<\/p>\n

1\uff09 \u9aa8\u67b6\uff1aRM8\u7acb\u5f0f\uff0812PI<\/u>N\uff09,Ae\uff1d64mm\u00b2\uff1b<\/p>\n

2\uff09 \u6750\u8d28\uff1aTDK<\/u>\u00a0PC40\u6216\u540c\u7b49\u6750\u8d28\uff1b<\/p>\n

3\uff09 \u521d\u7ea7\u3001\u53cd\u9988: 2UEW \u6f06\u5305\u7ebf\uff1b<\/p>\n

4\uff09 \u6b21\u7ea7: \u4e09\u5c42\u7edd\u7f18\u7ebf\uff1b<\/p>\n

5\uff09 \u7edd\u7f18\u80f6\u5e26:3M1298 \u6216\u540c\u7b49\u6750\u8d28\uff1b<\/p>\n

6\uff09 \u521d\u7ea7\u7ed5\u7ec4\u611f\u91cfLp\uff1a0.56mH\u00b15%\uff08\u6d4b\u8bd5\u6761\u4ef6\uff1a0.25V\uff0c1kHz\uff09\uff1b<\/p>\n

7\uff09 \u6f0f\u611f\u91cfLLK\uff1a\u8981\u6c42\u63a7\u5236\u5728\u521d\u7ea7\u7ed5\u7ec4\u76845%\u4ee5\u5185(\u6d4b\u8bd5\u6761\u4ef6\uff1a0.25V\uff0c10kHz\uff09\uff1b<\/p>\n

8\uff09 \u8010\u538b\u6d4b\u8bd5= 3KV 5mA 1Min\uff1b<\/p>\n

9\uff09 \u6210\u54c1\u8981\u6c42\uff1a\u6d78\u51e1\u7acb\u6c34\u3002<\/p>\n

(3)\u3001\u53d8\u538b\u5668\u53c2\u6570\uff1a<\/p>\n

\"poYBAGGp9AiAEG5oAAKbqGyR5eU240\"<\/div>\n

3.3\u3001\u5143\u5668\u4ef6<\/u>\u6e05\u5355\uff1a<\/strong><\/p>\n

\"pYYBAGGp9AuAQKM4AAStn9rmqC8294\"<\/div>\n

04\u3001\u6027\u80fd\u6d4b\u8bc4<\/strong><\/h2>\n

\u6837\u673a\u6027\u80fd\u4e3b\u8981\u662f\u9488\u5bf9\u5de5\u7a0b\u6837\u673a\u7684\u8f93\u5165\u90e8\u5206\u3001\u8f93\u51fa\u90e8\u5206\u3001\u5404\u79cd\u4fdd\u62a4\u4ee5\u53ca\u4e00\u4e9b\u65f6 \u5e8f\u8fdb\u884c\u4e86\u6d4b\u8bd5\uff0c\u4ee5\u4e0b\u8be6\u89e3\u4e86\u6d4b\u8bd5\u65b9\u6cd5\u53ca\u7ed3\u679c\u3002\u4ece\u6d4b\u8bd5\u7ed3\u679c\u6765\u770b\uff0c\u4ee5\u4e0b\u5404\u9879\u6d4b\u8bd5\u5747 \u5408\u683c\uff0c\u80fd\u591f\u6ee1\u8db3\u5927\u90e8\u5206\u5ba2\u6237\u7684\u8981\u6c42\u3002<\/p>\n

4.1\u3001\u8f93\u5165\u7279\u6027\uff1a<\/strong><\/p>\n

\u672c\u6837\u673a\u7ecf\u8fc7\u5728\u4e0d\u540c\u7684\u8f93\u5165\u7535\u538b(\u4ece 90VAC\u5230 264VAC)\u548c\u4e0d\u540c\u8d1f\u8f7d\u6761\u4ef6\uff08\u7a7a\u8f7d\u548c\u6ee1\u8f7d\uff09\u4e0b\u6d4b\u8bd5\uff0c\u5f97\u5230\u5f85\u673a\u529f\u8017\u3001\u6548\u7387\u53ca\u5e73\u5747\u6548\u7387\u3002<\/p>\n

\u8868 1 \u3001\u65e0\u8d1f\u8f7d\u5f85\u673a\u529f\u8017(\u8f93\u51fa 5V \u65f6)<\/p>\n

\"pYYBAGGp9BuAXPqXAACaHNtezBM046\"<\/div>\n

\u8868 2\u3001 \u8f93\u51fa PCB \u677f\u7aef\u6d4b\u8bd5 100%\u8f7d\u4e0b\u7684\u8f93\u5165\u7279\u6027<\/p>\n

\"poYBAGGp9B2AdFYgAAIII_AXn7U012\"<\/div>\n

\u8868 3\u3001\u8f93\u51fa\u677f\u7aef\u6d4b\u8bd5\u7684\u6548\u7387\u7279\u6027<\/p>\n

\"pYYBAGGp9B-AE4hrAAMAh4gDcZ0081\"<\/div>\n

4.2\u3001\u8f93\u51fa\u7279\u6027\uff1a<\/strong><\/p>\n

\u6ce8\uff1a\u4ee5\u4e0b\u6570\u636e\u5747\u4e3a\u677f\u7aef\u6d4b\u8bd5\uff1b<\/p>\n

4.2.1\u3001\u7ebf\u6027\u8c03\u6574\u7387\u548c\u8d1f\u8f7d\u8c03\u6574\u7387\uff1a<\/p>\n

\u8868 4 \u7ebf\u6027\u8c03\u6574\u7387\u548c\u8d1f\u8f7d\u8c03\u6574\u7387<\/p>\n

\"poYBAGGp9CGAJzQNAAN2wYqmO0I213\"<\/div>\n

4.2.2\u3001\u8f93\u51fa\u7535\u538b\u7eb9\u6ce2\u53ca\u566a\u97f3\uff1a<\/p>\n

\u6ce8\uff1a\u7eb9\u6ce2\u53ca\u566a\u97f3\u5728 20AWG\/1.5M \u7ebf\u7aef\u6d4b\u5f97\uff0c\u5728\u6b64\u7ebf\u7aef\u5e76\u8054 10uF\/50V \u7535\u89e3\u7535\u5bb9<\/u>\u548c 0.1uF\/50V CBB \u7535\u5bb9\uff0c\u793a\u6ce2\u5668<\/u>\u5e26\u5bbd\u9650\u5236\u4e3a 20MHz\u3002<\/p>\n

\u8868 5 \u7535\u538b\u7eb9\u6ce2\u6d4b\u8bd5<\/p>\n

\"pYYBAGGp9COAa37CAAHmhr94Dlk651\"<\/div>\n

\u7eb9\u6ce2\u566a\u58f0\u6ce2\u5f62\u56fe\uff1a<\/p>\n

\"ad6db202112031758584876.jpg\"\"53a8c202112031801551773.jpg\"<\/div>\n

4.3\u3001\u4fdd\u62a4\u529f\u80fd\uff1a<\/strong><\/p>\n

\u4ee5\u4e0b\u6d4b\u8bd5\u8fc7\u6d41\u4fdd\u62a4\u3001\u77ed\u8def\u4fdd\u62a4\u529f\u80fd\u3002<\/p>\n

4.3.1 \u8fc7\u6d41\u4fdd\u62a4\uff1a<\/p>\n

\"poYBAGGp9FSAK9qNAAE0BxAIfRE738\"<\/div>\n

4.3.2 \u77ed\u8def\u4fdd\u62a4\uff1a\u529f\u7387\u8ba1\u9650\u6d41\u7535\u6d41\u4e3a 2.5A<\/p>\n

\"pYYBAGGp9FWABEoMAACbxQ7yOYk578\"<\/div>\n

4.4 \u52a8\u6001\u6d4b\u8bd5\uff1a<\/p>\n

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