{"id":5291,"date":"2021-10-27T14:49:20","date_gmt":"2021-10-27T06:49:20","guid":{"rendered":"http:\/\/www.szryc.com\/?p=5291"},"modified":"2021-10-27T14:50:42","modified_gmt":"2021-10-27T06:50:42","slug":"%e6%84%8f%e6%b3%95%e5%8d%8a%e5%af%bc%e4%bd%93%e6%96%b0mdmesh-k6-800v-stpower-mosfet%e6%8f%90%e9%ab%98%e8%83%bd%e6%95%88%ef%bc%8c%e6%9c%80%e5%a4%a7%e9%99%90%e5%ba%a6%e9%99%8d%e4%bd%8e%e5%bc%80-2","status":"publish","type":"post","link":"http:\/\/www.szryc.com\/?p=5291","title":{"rendered":"DC-DC\u964d\u538b\u6052\u6d41\u8c03\u5149\uff0c\u5185\u7f6eMOS\u8010\u538b100V\uff0c\u5171\u6b63\u6781\u9633\u6781PWM\u63a7\u5236\u65b9\u6848\uff1aFP7122XR-G1"},"content":{"rendered":"

FP7122 \u4ea7\u54c1\u7279\u6027\u8bf4\u660e\u00a0<\/strong><\/p>\n

1. \u6052\u6d41\u8f93\u51fa\uff1aIC\u5185\u90e8\u6709\u5feb\u901f\u56de\u6388\u673a\u5236\uff0c\u8f93\u51fa\u7535\u6d41\u4e0d\u53d7\u7535\u611f\u91cf\u3001\u8f93\u5165\u7535\u538b\u4e0e\u8f93\u51fa LED \u7535\u538b\u5f71\u54cd\u3002<\/p>\n

2. \u6052\u5b9a\u7535\u6d41\u7eb9\u6ce2\u63a7\u5236\uff1aFP7122\u4f1a\u81ea\u52a8\u8c03\u6574\u9891\u7387\uff0c\u4f7fLED\u4e0a\u7684\u7535\u6d41\u7eb9\u6ce2\u56fa\u5b9a\u5728\u00b125%\u3002<\/p>\n

3. Vin Pin \u9ad8\u538b\u8f93\u5165\uff1aVIN pin \u53ef\u627f\u53d7\u8fbe100V\u7684\u7535\u538b\uff0c\u4e0d\u7528\u63a5\u964d\u538b\u963b\u5bb9\uff0c\u51cf\u5c11\u5916\u90e8\u5143\u4ef6\u3002<\/p>\n

4. \u7ebf\u6027\u8c03\u5149\u529f\u80fd\uff1a\u5728 DIM PIN \u8f93\u5165\u7535\u538b0.25V~1.5V\u53ef\u63a7\u5236\u8f93\u51fa20%~100%\u7684LED\u7535\u6d41<\/p>\n

5. PWM\u8c03\u5149\u529f\u80fd\uff1a\u5728DIM Pin\u8f93\u5165PWM\u8baf\u53f7\uff0c\u6539\u53d8\u5360\u7a7a\u6bd4\u53ef\u63a7\u5236\u8f93\u51faLED\u7535\u6d41 0%~100%\u3002<\/p>\n

6. \u77ed\u8def\u4fdd\u62a4\u548c\u8fc7\u6e29\u4fdd\u62a4\uff1a\u53ef\u907f\u514d\u70e7LED\u7684\u60c5\u51b5\u3002<\/p>\n

7. LED\u7535\u6d41\u8ba1\u7b97\u516c\u5f0f\uff1a<\/p>\n

\"pYYBAGF20hCAPAQRAAAzVxhSuS0839\"<\/figure>\n

\u811a\u4f4d\u8bf4\u660e\u00a0<\/strong><\/p>\n

\"poYBAGF20hGAb1fhAADYA31L36U446\"<\/figure>\n

\u5e94\u7528\u7535\u8def\u00a0<\/strong><\/p>\n

\u8f93\u5165\u8303\u56f4\uff1a10.5V~100V \u00a0\u8f93\u51fa\u8303\u56f4\uff1aLED = 3V~9V<\/p>\n

\u203b \u8bbe\u5b9a\u6bd4\u8f83\u5927\u7535\u6d41\u65f6\u5019\u8bf7\u6ce8\u610f\u73af\u5883\u6e29\u5ea6\u8bf7\u52ff\u8fc7\u9ad8\uff0c\u5426\u5219\u6e29\u5ea6\u8865\u507f\u4f1a\u52a8\u4f5c\u5bfc\u81f4\u65e0\u6cd5\u6b63\u5e38\u6052\u6d41\u8f93\u51fa\u3002<\/p>\n

\"pYYBAGF20hCAJIipAACDBArPfrs816\"<\/figure>\n

\u6d4b\u8bd5\u6761\u4ef6\uff1a\u6d4b\u8bd5\u7535\u8def\u5982\u4e0a\u9875\u5e94\u7528\u7535\u8def\u6240\u793a\uff0cLED=3\u4e32(9V)\uff0cLED\u7535\u6d41=3A<\/p>\n

\"poYBAGF20hGARj0MAADWl5JqMPk260\"<\/figure>\n

PCB Layout\u00a0<\/strong><\/p>\n

\"pYYBAGF20hGAGE2tAAHqds-sxwk942\"<\/figure>\n
\"pYYBAGF20hKAapQoAAW_xv7Vv70340\"<\/figure>\n

\u6ce8\u610f\u4e8b\u9879\uff1a<\/p>\n

1. CS pin\u4e0eDIM pin \u8f83\u4e3a\u654f\u611f\uff0c\u5fc5\u987b\u7f29\u77ed\u8d70\u7ebf\uff0c\u5c3d\u53ef\u80fd\u907f\u5f00\u7535\u611f\u3002<\/p>\n

2. VDD \u5bf9\u5730\u7535\u5bb9(C4)\u5c3d\u91cf\u9760\u8fd1IC\u3002<\/p>\n

3. \u8f93\u5165\u7535\u5bb9(C1)\u7684\u5730\u5c3d\u91cf\u9760\u8fd1\u7535\u6d41\u8bbe\u5b9a\u7535\u963b(RCS)\u7684\u5730\u3002<\/p>\n

4. PCB \u677f\u5269\u4f59\u7a7a\u95f4\u5efa\u8bae\u90fd\u94fa\u94dc\u8d70\u5730\u7ebf\uff0c\u5bf9\u6297\u566a\u58f0\u6709\u6bd4\u8f83\u597d\u7684\u6548\u679c\u3002<\/p>\n

5. \u7535\u611f(L1)\u8981\u907f\u514d\u9760\u8fd1IC\uff0c\u4ee5\u514d\u5e72\u6270IC\u7684\u7535\u6d41\u4fa6\u6d4b\u3002<\/p>\n

 <\/p>\n

\u5e94\u7528\u7ebf\u8def\u8bbe\u8ba1\u8bf4\u660e<\/strong><\/p>\n

1. \u6700\u5927\u5360\u7a7a\u6bd4<\/p>\n

FP7122 \u8f93\u51faTON\u6700\u5927\u503c\u662f55us\uff0cTOFF\u6700\u5c0f\u503c\u662f0.6us\uff0c\u6240\u4ee5IC\u53ef\u6700\u5927\u5de5\u4f5c\u5360\u7a7a\u6bd4\u662f98.9%\uff0c\u53ef\u662f\u5b9e\u9645\u5e94\u7528\u4e0a\u9700\u8003\u8651\u7535\u611f\u4e0a\u7684DCR\u3001MOS\u7684\u5185\u963bRON\u3001\u4e8c\u7ea7\u7ba1\u7684\u538b\u964dVD\u4e0e\u8f93\u5165\u7ebf\u7684\u7ebf\u635fRL\uff0c\u4f9d\u7535\u611f\u516c\u5f0f\u53ef\u63a8\u5bfc\u51fa\u4ee5\u4e0b\u7b97\u5f0f\u4ee5\u4f9b\u53c2\u8003\uff1a<\/p>\n

\"poYBAGF20hKAGPIkAAAkxs4Y62M696\"<\/figure>\n

\u203b \u4ee5\u4e0a\u7b97\u5f0f\u5ffd\u7565\u7ebf\u635fRL<\/p>\n

\u203b VREF\u662fIC \u7684\u53c2\u8003\u7535\u538b0.25V<\/p>\n

\u203b \u4ece\u4ee5\u4e0a\u516c\u5f0f\u53ef\u5f97\u77e5\u7535\u611f\u7684DCR\u3001MOS\u7684RON\u4e0e\u4e8c\u7ea7\u7ba1\u538b\u964dVD\u90fd\u4f1a\u964d\u4f4eIC\u53ef\u5de5\u4f5c\u5927\u7684\u5360\u7a7a\u6bd4<\/p>\n

2. \u7535\u6d41\u7cbe\u5ea6<\/p>\n

FP7122 \u91c7\u7528\u5e73\u5747\u7535\u6d41\u68c0\u6d4b\u65b9\u5f0f\uff0c\u5bf9\u4e8e\u7535\u611f\u53d8\u5316\u4e0e\u8f93\u5165\u7535\u538b\u53d8\u5316\u90fd\u53ef\u4ee5\u7a33\u5b9a\u7684\u6052\u6d41\u8f93\u51fa\uff0c \u00a0\u9700\u6ce8\u610fIC\u6709TON\u6700\u5c0f\u503c\u7684\u9650\u5236\uff0c\u5f53IC\u5de5\u4f5c\u7684TON\u4f4e\u4e8e\u6700\u5c0f\u503c(1us)\u7535\u6d41\u7cbe\u5ea6\u4f1a\u5f00\u59cb\u5931\u51c6\uff0c\u53ea\u8981\u628a\u7535\u611f\u91cf\u653e\u5927\u5c31\u53ef\u4ee5\u89e3\u51b3\u95ee\u9898\u3002TON\u8ba1\u7b97\u53c2\u8003\u4e0a\u8ff0\u7b97\u5f0f\u3002<\/p>\n

3. \u6e29\u5ea6\u8865\u507f<\/p>\n

FP7122 \u5185\u90e8\u6709\u505a\u6e29\u5ea6\u8865\u507f\u7684\u529f\u80fd\uff0c\u5f53\u6e29\u5ea6\u8fbe 130\u2103\u6e29\u5ea6\u8865\u507f\u529f\u80fd\u542f\u52a8\uff0c\u4f1a\u628a\u8f93\u51fa\u7535\u6d41\u964d\u4e3a40%\uff0c\u6e29\u5ea6\u5982\u679c\u7ee7\u7eed\u5347\u9ad8\u5230170\u2103\u518d\u542f\u52a8\u8fc7\u6e29\u4fdd\u62a4\uff0c\u8fc7\u6e29\u4fdd\u62a4\u529f\u80fd\u4f1a\u628a IC \u5b8c\u5168\u5173\u65ad\u3002\u8bbe\u5b9a\u6bd4\u8f83\u5927\u7535\u6d41\u65f6\u5019\u8bf7\u6ce8\u610f\u73af\u5883\u6e29\u5ea6\u8bf7\u52ff\u8fc7\u9ad8\uff0c\u5426\u5219\u6e29\u5ea6\u8865\u507f\u4f1a\u52a8\u4f5c\u5bfc\u81f4\u65e0\u6cd5\u6b63\u5e38\u6052\u6d41\u8f93\u51fa\u3002<\/p>\n

4. \u5de5\u4f5c\u9891\u7387<\/p>\n

FP7122 \u4f1a\u968f\u5916\u90e8\u5143\u4ef6\u8bbe\u5b9a\u4e0e\u8f93\u51fa\u7535\u6d41\u8c03\u6574\u51fa\u5408\u9002\u7684\u5de5\u4f5c\u9891\u7387\uff0c\u8c03\u6574\u7535\u611f\u91cf\u53ef\u76f4\u63a5\u8c03\u6574\u5de5\u4f5c\u9891\u7387\uff0c\u4e00\u822c\u5efa\u8bae\u64cd\u4f5c\u5728250kHz\u4ee5\u4e0b\uff0c\u5de5\u4f5c\u9891\u7387\u8ba1\u7b97\u53ef\u53c2\u8003\u4ee5\u4e0b\u7b97\u5f0f\uff1a<\/p>\n

\"pYYBAGF20hKAXrvlAAAvv8tm_Jg865\"<\/figure>\n

\u8c03\u5149\u63a7\u5236<\/strong><\/p>\n

FP7122 \u53ef\u8f93\u5165 DC \u7535\u538b\u4e0e PWM \u8baf\u53f7\u4e24\u79cd\u65b9\u5f0f\u505a\u8c03\u5149\uff0cDC \u8c03\u5149\u8303\u56f4\u662f 0.25V~1.5V\uff0c\u53ef\u8c03\u6574\u8f93\u51fa\u7535\u6d41 20%~100%\uff1bPWM\u8baf\u53f7\u8c03\u5149\u65f6\u5019\u5efa\u8bae\u9891\u7387\u8bbe\u5b9a\u5728200Hz~20kHz\uff0c\u6539\u53d8PWM\u5360\u7a7a\u6bd4\u53ef\u8c03\u6574\u8f93\u51fa\u7535\u6d41 0%~100%\u3002<\/p>\n

\"poYBAGF20hOAS6buAAHDLWeN8Fw762\"<\/figure>\n","protected":false},"excerpt":{"rendered":"

FP7122 \u4ea7\u54c1\u7279\u6027\u8bf4\u660e\u00a0 1. \u6052\u6d41\u8f93\u51fa\uff1aIC\u5185\u90e8\u6709\u5feb\u901f\u56de\u6388\u673a\u5236\uff0c\u8f93\u51fa\u7535\u6d41\u4e0d\u53d7\u7535\u611f\u91cf\u3001\u8f93\u5165\u7535\u538b\u4e0e\u8f93\u51fa LE […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[14],"tags":[],"_links":{"self":[{"href":"http:\/\/www.szryc.com\/index.php?rest_route=\/wp\/v2\/posts\/5291"}],"collection":[{"href":"http:\/\/www.szryc.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.szryc.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.szryc.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.szryc.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=5291"}],"version-history":[{"count":1,"href":"http:\/\/www.szryc.com\/index.php?rest_route=\/wp\/v2\/posts\/5291\/revisions"}],"predecessor-version":[{"id":5303,"href":"http:\/\/www.szryc.com\/index.php?rest_route=\/wp\/v2\/posts\/5291\/revisions\/5303"}],"wp:attachment":[{"href":"http:\/\/www.szryc.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=5291"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.szryc.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=5291"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.szryc.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=5291"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}