{"id":5260,"date":"2021-10-27T14:31:26","date_gmt":"2021-10-27T06:31:26","guid":{"rendered":"http:\/\/www.szryc.com\/?p=5260"},"modified":"2021-10-27T14:31:26","modified_gmt":"2021-10-27T06:31:26","slug":"%e5%9f%ba%e4%ba%8egan%e7%9a%84llc%e8%a7%a3%e5%86%b3%e6%96%b9%e6%a1%88%e7%bc%a9%e5%b0%8f%e5%b0%ba%e5%af%b8%e5%b9%b6%e6%8f%90%e9%ab%98%e6%95%88%e7%8e%87","status":"publish","type":"post","link":"http:\/\/www.szryc.com\/?p=5260","title":{"rendered":"\u57fa\u4e8eGaN\u7684LLC\u89e3\u51b3\u65b9\u6848\u7f29\u5c0f\u5c3a\u5bf8\u5e76\u63d0\u9ad8\u6548\u7387"},"content":{"rendered":"

\u00a0 \u00a0 \u00a0 GaN \u9ad8\u7535\u5b50\u8fc1\u79fb\u7387\u6676\u4f53\u7ba1<\/u>\u00a0(GaN HEMT) \u5177\u6709\u66f4\u4f4e\u7684\u9a71\u52a8\u635f\u8017\u548c\u66f4\u77ed\u7684\u6b7b\u533a\u65f6\u95f4\u7535\u8def<\/u>\u4f18\u52bf\uff0c\u56e0\u4e3a\u6805\u6781\u663e\u7740\u51cf\u5c11<\/h2>\n

\u4e0e\u7845\u00a0MOSFET<\/u>\u00a0\u76f8\u6bd4\uff0cGaN \u9ad8\u7535\u5b50\u8fc1\u79fb\u7387\u6676\u4f53<\/u>\u7ba1 (GaN HEMT) \u5177\u6709\u66f4\u4f4e\u7684\u9a71\u52a8\u635f\u8017\u548c\u66f4\u77ed\u7684\u6b7b\u533a\u65f6\u95f4\u7535\u8def\u4f18\u52bf\uff0c\u56e0\u4e3a\u6805\u6781\u7535\u8377 (Qg) \u548c\u8f93\u51fa\u7535\u5bb9<\/u>\u00a0(Coss) \u663e\u7740\u964d\u4f4e\u3002\u56e0\u6b64\uff0cGaN HEMT \u5728\u9ad8\u9891\u8f6f\u5f00\u5173<\/u>\u8c10\u632f\u62d3\u6251\uff08\u5982 LLC \u8c10\u632f\u8f6c\u6362\u5668\uff09\u4e2d\u663e\u793a\u51fa\u4f18\u4e8e\u7845 MOSFET \u7684\u663e\u7740\u4f18\u52bf\u3002\u968f\u7740\u5f00\u5173\u9891\u7387\uff08fsw)\uff0c\u53ef\u4ee5\u51cf\u5c0f\u53d8\u538b\u5668<\/u>\u94c1\u82af\u5c3a\u5bf8\u3002\u6b64\u5916\uff0c\u91c7\u7528 3-D\u00a0PCB<\/u>\u00a0\u7ed3\u6784\u6765\u63d0\u9ad8\u529f\u7387\u5bc6\u5ea6\u3002\u7cbe\u5fc3\u8bbe\u8ba1\u4e86 190 \u74e6\u3001400V-19V GaN Systems \u57fa\u4e8e E-HEMT \u7684 LLC DC-DC \u8c10\u632f\u8f6c\u6362\u5668\uff0c\u5e76\u4e14\u8be5\u53d8\u538b\u5668\u9488\u5bf9\u5de5\u4f5c\u5728 600kHz \u4ee5\u4e0a\u7684\u9ad8\u7aef\u9002\u914d\u5668<\/u>\u5e94\u7528\u8fdb\u884c\u4e86\u4f18\u5316\u3002\u8be5\u8f6c\u6362\u5668\u5c55\u793a\u4e86\u529f\u7387\u5bc6\u5ea6\u8d85\u8fc7 63W\/inch3 \u7684\u5b8c\u6574\u8bbe\u8ba1\uff0c\u5305\u62ec 400V \u603b\u7ebf\u7535\u5bb9\u5668<\/u>\uff0c\u5cf0\u503c\u6548\u7387\u4e3a 96%\u3002<\/i><\/p>\n

\u9ad8\u529f\u7387\u5bc6\u5ea6\u662f GaN HEMT \u5e7f\u6cdb\u7528\u4e8e\u4f4e\u529f\u8017\u6d88\u8d39\u7c7b\u5e94\u7528\uff08\u4f8b\u5982\u7b14\u8bb0\u672c\u7535\u8111\u9002\u914d\u5668\u3001\u5e73\u677f\u7535\u89c6\u548c\u4e00\u4f53\u5f0f\u53f0\u5f0f\u8ba1\u7b97\u673a<\/u>\uff09\u7684\u5173\u952e\u52a8\u673a\u4e4b\u4e00\u3002<\/p>\n

LLC \u8c10\u632f\u8f6c\u6362\u62d3\u6251\u53ef\u6709\u6548\u63d0\u9ad8\u6548\u7387\uff0c\u7279\u522b\u662f\u5bf9\u4e8e\u5f00\u5173\u635f\u8017\u6bd4\u4f20\u5bfc\u635f\u8017\u66f4\u91cd\u8981\u7684\u9ad8\u8f93\u5165\u7535\u538b\u5e94\u7528\u3002\u4e32\u8054\u548c\u5e76\u8054\u7535\u611f<\/u>\u901a\u5e38\u5229\u7528\u6f0f\u7535\u611f\u548c\u52b1\u78c1\u7535\u611f\u96c6\u6210\u5230\u53d8\u538b\u5668\u4e2d\uff0c\u4ece\u800c\u51cf\u5c11\u5143\u4ef6\u6570\u91cf\u3002\u672c\u6587\u65e8\u5728\u5c55\u793a\u4f7f\u7528 GaN HEMT \u7684\u9ad8\u529f\u7387\u5bc6\u5ea6\u548c\u9ad8\u6548\u7387 DC-DC LLC \u89e3\u51b3\u65b9\u6848\u3002<\/p>\n

 <\/p>\n

\"1324-2764-gan-systems\"<\/div>\n

 <\/p>\n

\u8868 1. QG \u548c COSS \u6bd4\u8f83\u3002<\/i><\/p>\n

GaN HEMT \u5728\u9ad8\u9891\u8f6f\u5f00\u5173 LLC \u5e94\u7528\u4e2d\u8fd0\u884c\u7684\u80fd\u529b<\/strong><\/h2>\n

\u4e0e\u7845 MOSFET \u76f8\u6bd4\uff0cGaN HEMT \u5177\u6709\u663e\u7740\u964d\u4f4e\u7684\u6805\u6781\u7535\u8377 (Qg) \u548c\u8f93\u51fa\u7535\u5bb9 (Coss)\uff0c\u4ece\u800c\u5bfc\u81f4\u66f4\u4f4e\u7684\u9a71\u52a8\u635f\u8017\u548c\u66f4\u77ed\u7684\u5bfc\u901a\/\u5173\u65ad\u5468\u671f\u3002\u56e0\u6b64\uff0cGaN HEMT \u5728\u9ad8\u9891\u8f6f\u5f00\u5173\u8c10\u632f\u62d3\u6251\uff08\u4f8b\u5982 LLC \u8c10\u632f\u8f6c\u6362\u5668\uff09\u4e2d\u663e\u793a\u51fa\u4f18\u4e8e\u7845 MOSFET \u7684\u663e\u7740\u4f18\u52bf\u3002<\/p>\n

\u4e3a\u4e86\u66f4\u6df1\u5165\u5730\u4e86\u89e3 GaN \u5728\u9ad8\u9891\u8f6f\u5f00\u5173\u8c10\u632f\u8f6c\u6362\u5668\u4e2d\u7684\u6f5c\u5728\u4f18\u52bf\uff0c\u6211\u4eec\u5fc5\u987b\u5c06 GaN HEMT \u7684\u5173\u952e\u53c2\u6570\u4e0e\u4f20\u7edf Si MOSFET \u7684\u5173\u952e\u53c2\u6570\u8fdb\u884c\u6bd4\u8f83\u3002\u4f8b\u5982\uff0c\u9009\u62e9 GaN Systems \u7684 GS55504B \u4e0e\u6709\u6e90 Si MOSFET\uff08IPx65R110CFD \u548c IPP60R105CFD7\uff09\u8fdb\u884c\u6bd4\u8f83\uff0c\u56e0\u4e3a\u5b83\u4eec\u5177\u6709\u76f8\u5f53\u7684 RDS(ON) \u503c\u3002\u4e0b\u8868\u663e\u793a\u4e86\u5173\u952e\u53c2\u6570\u7684\u6bd4\u8f83\uff1aVDS\u3001RDS (ON)\u3001QG\u3001CO (ER) \u548c CO (TR)\u3002<\/p>\n

 <\/p>\n

\"poYBAGFj3oSACtBuAABri4RKmTU124\"<\/div>\n

 <\/p>\n

\u56fe 1. Qg \u6bd4\u8f83<\/i><\/p>\n

 <\/p>\n

\"pYYBAGFj3oWAEEkwAABPzlVx-BA557\"<\/div>\n

 <\/p>\n

\u56fe 2.\u00a0\u6805\u6781\u9a71\u52a8\u5668<\/u>\u635f\u8017\u6bd4\u8f83<\/i><\/p>\n

 <\/p>\n

<\/h3>\n

A. GaN \u7684 Qg \u4f18\u52bf<\/strong><\/h3>\n

\u5982\u56fe 1 \u6240\u793a\uff0c\u4e0e IPx65R110CFD \u548c IPP60R105CFD7 \u76f8\u6bd4\uff0cGS55504B \u7684\u6805\u6781\u7535\u8377 (Qg) \u663e\u7740\u964d\u4f4e\uff0c\u4ece\u800c\u964d\u4f4e\u4e86\u9a71\u52a8\u635f\u8017\u3002\u56fe 2 \u663e\u793a\u4e86\u4e0d\u540c\u5f00\u5173\u9891\u7387\u4e0b\u6805\u6781\u9a71\u52a8\u5668\u635f\u8017\u7684\u6bd4\u8f83\u3002\u4e24\u79cd\u5668\u4ef6\u4e4b\u95f4\u7684\u635f\u8017\u5dee\u5f02\u968f\u7740\u5f00\u5173\u9891\u7387\u7684\u589e\u52a0\u800c\u6025\u5267\u589e\u52a0\uff0c\u8bc1\u660e\u4e86 GaN HEMT \u5728\u9ad8\u5f00\u5173\u9891\u7387\u4e0b\u5de5\u4f5c\u7684\u4f18\u52bf\u3002<\/p>\n

 <\/p>\n

\"poYBAGFj3oaASlpNAABcyCc8ZPU175\"<\/div>\n

 <\/p>\n

\u56fe 3. \u6210\u672c\u6bd4\u8f83<\/i><\/p>\n

 <\/p>\n

\"pYYBAGFj3oeADPB3AABggjcZbEk693\"<\/div>\n

 <\/p>\n

\u56fe 4. \u6210\u672c\u80fd\u91cf\u6bd4\u8f83<\/i><\/p>\n

 <\/p>\n

\"poYBAGFj3oiAWhEaAABfd4xjLew840\"<\/div>\n

 <\/p>\n

\u56fe 5. \u5173\u65ad\u65f6\u7684 Coss \u5145\u7535\u65f6\u95f4\u6bd4\u8f83\u3002<\/i><\/p>\n

 <\/p>\n

 <\/p>\n

B. GaN \u7684\u6210\u672c\u4f18\u52bf<\/strong><\/h3>\n

Si MOSFET \u7684 Coss \u5728\u4f4e\u7535\u538b\u4e0b\u662f\u9ad8\u5ea6\u975e\u7ebf\u6027\u7684\u3002GaN HEMT \u7684 Coss \u503c\u5177\u6709\u663e\u7740\u964d\u4f4e\u7684\u8f93\u51fa\u7535\u5bb9 (Coss) \u548c Coss \u80fd\u91cf\uff0c\u4ece\u800c\u5bfc\u81f4\u66f4\u77ed\u7684\u5bfc\u901a\/\u5173\u65ad\u5468\u671f\uff0c\u5982\u56fe 5 \u6240\u793a\u3002\u8be5\u7279\u6027\u5141\u8bb8\u5b9e\u73b0\u66f4\u77ed\u7684\u6b7b\u533a\u65f6\u95f4\u548c\u66f4\u9ad8\u7684\u5f00\u5173\u9891\u7387\u64cd\u4f5c\u3002<\/p>\n

 <\/p>\n

C. LLC\u8c10\u632f\u8f6c\u6362\u5668\u4e2d\u7684GaN\u4f18\u52bf<\/strong><\/h3>\n

\u56fe 6 \u7ed8\u5236\u4e86\u57fa\u4e8e GaN \u7684\u534a\u6865 LLC \u8f6c\u6362\u5668\u7684\u539f\u7406\u56fe\u3002<\/p>\n

 <\/p>\n

\"pYYBAGFj3omAKfiFAABHhQoROGc533\"<\/div>\n

 <\/p>\n

\u56fe 6. \u57fa\u4e8e GaN \u7684\u534a\u6865 LLC \u8f6c\u6362\u5668\u3002<\/i><\/p>\n

 <\/p>\n

\u5bf9\u4e8e\u5728\u4f4e\u4e8e\u8c10\u632f\u533a\u57df\u548c\u8c10\u632f\u70b9\u5de5\u4f5c\u7684 LLC \u8c10\u632f\u8f6c\u6362\u5668\uff0c\u521d\u7ea7\u4fa7\u534a\u6865\u5f00\u5173 S1 \u548c S2 \u59cb\u7ec8\u5b89\u5168\u5f00\u542f\uff0c\u800c\u4e0d\u4f1a\u4ea7\u751f\u5f00\u5173\u635f\u8017\uff08\u96f6\u7535\u538b\u5f00\u5173\uff09\u3002\u7535\u6e90\u5f00\u5173\u4ea7\u751f\u7684\u603b\u635f\u8017\u7531\u4e09\u90e8\u5206\u7ec4\u6210\uff1a1\uff09\u9a71\u52a8\u635f\u8017\uff08\u7531 Qg \u51b3\u5b9a\uff09\uff0c2\uff09\u4f20\u5bfc\u635f\u8017\uff08\u7531 RDS(ON) \u51b3\u5b9a\uff09\u548c 3\uff09\u5173\u65ad\u635f\u8017\uff08\u7531 Coss \u51b3\u5b9a\uff09\u3002\u7ecf\u5206\u6790\uff0c\u5f53\u5e94\u7528\u4e8e\u9ad8\u9891\u8f6f\u5f00\u5173\u9891\u7387 LLC \u8f6c\u6362\u5668\u65f6\uff0cGS55504B \u4e0e Si MOSFET \u76f8\u6bd4\u5177\u6709\u4e0a\u8ff0\u6240\u6709\u4e09\u4e2a\u4f18\u70b9\u3002<\/p>\n

LLC \u8f6c\u6362\u5668\u7684\u8bbe\u8ba1\u89c4\u8303\u5982\u8868 2 \u6240\u793a\uff0c\u5728\u4e24\u7ea7\u9002\u914d\u5668\u5e94\u7528\u4e2d\u975e\u5e38\u6d41\u884c\u3002\u8bbe\u8ba1\u4e86LLC\u69fd\uff0c\u53c2\u6570\u5982\u88683\u6240\u793a\u3002<\/p>\n

 <\/p>\n

\"poYBAGFj3omAXzzIAAAv7alWW5g841\"<\/div>\n

 <\/p>\n

\u8868 2\uff1a\u8bbe\u8ba1\u89c4\u683c<\/i><\/p>\n

 <\/p>\n

\"pYYBAGFj3oqAYaRLAAAoBCvd41Y880\"<\/div>\n

 <\/p>\n

\u8868 3\uff1aLLC \u8c10\u632f\u69fd\u53c2\u6570<\/i><\/p>\n

 <\/p>\n

\u9ad8\u529f\u7387\u5bc6\u5ea6 LLC \u8c10\u632f\u8f6c\u6362\u5668\u7684 3D PCB \u7ed3\u6784\u89e3\u51b3\u65b9\u6848<\/strong><\/h2>\n

<\/h3>\n

A. 3-D \u7ed3\u6784\u6982\u5ff5<\/strong><\/h3>\n

\u4e3a\u4e86\u63d0\u9ad8\u57fa\u4e8e GaN HEMT \u7684 LLC \u539f\u578b\u7684\u529f\u7387\u5bc6\u5ea6\uff0c\u8fd8\u4f7f\u7528\u4e86\u201c3-D PCB\u201d\u6982\u5ff5\uff0c\u5176\u4e2d\u6240\u6709\u6709\u6e90\u5f00\u5173\u3001\u529f\u7387\u4e8c\u6781\u7ba1<\/u>\u548c\u00a0MCU<\/u>\u00a0\u90fd\u7ec4\u88c5\u5728 PCB \u5b50\u5361\u4e0a\u3002<\/p>\n

<\/h3>\n

B. \u5b9e\u65bd<\/strong><\/h3>\n

\u6574\u4e2aLLC\u7cfb\u7edf\u8bbe\u8ba1\u7531\u4ee5\u4e0b\u56db\u90e8\u5206\u7ec4\u6210\uff1a<\/p>\n

<\/h3>\n

PCB\u677f<\/u>1<\/strong><\/h2>\n

\u5177\u6709\u4e24\u4e2a GaN HEMT (GS66504B) \u548c\u81ea\u4e3e\u9a71\u52a8\u7535\u8def (32mm (L) \u00d7 19mm (W)) \u7684\u521d\u7ea7\u4fa7\u534a\u6865\u5b50\u5361\u3002\u7531\u4e8e GS66504B \u662f\u5e95\u90e8\u51b7\u5374\u5668\u4ef6\uff0c\u4e00\u4e2a 17mm \u00d7 17mm \u65b9\u5f62\u6563\u70ed\u5668\u8fde\u63a5\u5230 PCB \u5e95\u90e8\u4ee5\u51b7\u5374\u4e24\u4e2a GaN HEMT\u3002<\/p>\n

 <\/p>\n

\"poYBAGFj3o6AN13IAAEKLJ8Cp1M753\"<\/div>\n

 <\/p>\n

\u56fe 7. \u521d\u7ea7\u4fa7\u534a\u6865\u5b50\u5361 PCB \u5e03\u5c40\uff08\u9876\u90e8\uff09\u548c\u56fe\u7247\uff08\u5e95\u90e8\uff09\u3002<\/i><\/p>\n

 <\/p>\n

<\/h3>\n

PCB\u677f2<\/strong><\/h2>\n

\u5e26\u5916\u56f4\u7535\u8def\u7684\u521d\u7ea7\u4fa7\u6570\u5b57\u63a7\u5236\u5668 (26mm (L) \u00d7 20mm (W))\u3002\u8be5\u62d3\u6251\u91c7\u7528\u6570\u5b57\u63a7\u5236\u89e3\u51b3\u65b9\u6848\uff0c\u5c06\u8f93\u51fa\u7535\u538b\u8c03\u8282\u3001OVP \u548c OCP \u529f\u80fd\u96c6\u6210\u5230\u4e00\u4e2a\u4f4e\u6210\u672c MCU\uff08Microchip<\/u>\u00a0\u7684 DPI<\/u>C33FJ06GS202A\uff09\u4e2d\u3002<\/p>\n

 <\/p>\n

\"poYBAGFj3o-AY20oAAD619rBX94366\"<\/div>\n

 <\/p>\n

\u56fe 8. \u521d\u7ea7\u4fa7\u6570\u5b57\u63a7\u5236\u5668\u5b50\u5361 PCB \u5e03\u5c40\uff08\u9876\u90e8\uff09\u548c\u56fe\u7247\uff08\u5e95\u90e8\uff09\u3002<\/i><\/p>\n

 <\/p>\n

<\/h2>\n

PCB\u677f3<\/strong><\/h2>\n

\u526f\u8fb9\u540c\u6b65\u6574\u6d41\u5b50\u5361\uff0820mm\uff08\u957f\uff09\u00d717mm\uff08\u5bbd\uff09\uff09\u3002\u6240\u6709\u7ec4\u4ef6\u90fd\u4ec5\u710a\u63a5<\/u>\u5728\u9876\u90e8\u3002\u4e00\u4e2a 20mm \u00d7 20mm \u65b9\u5f62\u6563\u70ed\u5668\u8fde\u63a5\u5230 PCB \u7684\u5e95\u90e8\uff0c\u4ee5\u51b7\u5374\u56db\u4e2a\u540c\u6b65\u6574\u6d41\u5668 MOSFET\uff082 \u00d7 2 \u5e76\u8054 MOSFET\uff09\u3002<\/p>\n

 <\/p>\n

\"pYYBAGFj3pCATz1pAAEe3erO1ws758\"<\/div>\n

 <\/p>\n

\u56fe 9. \u6b21\u7ea7\u4fa7\u540c\u6b65\u6574\u6d41\u5b50\u5361 PCB \u5e03\u5c40\uff08\u5de6\uff09\u548c\u56fe\u7247\uff08\u53f3\uff09\u3002<\/i><\/p>\n

 <\/p>\n

 <\/p>\n

PCB\u677f4<\/strong><\/h2>\n

\u5e26\u6709\u8f93\u5165\u7535\u5bb9\u5668\u3001\u8f93\u51fa\u6ee4\u6ce2\u5668<\/u>\u548c\u96c6\u6210\u53d8\u538b\u5668\uff0869mm (L) \u00d7 34mm (W)\uff09\u7684\u4e3b\u677f\u5982\u56fe 10 \u6240\u793a\u3002\u4e3b\u677f\u4e0a\u4e3a PCB \u677f #1\u3001PCB \u677f #2 \u548c PCB \u677f # \u63d0\u4f9b\u4e86\u4e09\u4e2a\u63d2\u69fd3 \u63d2\u5165\u3002<\/p>\n

 <\/p>\n

\"poYBAGFj3pGAci02AAC2PA6CqnI416\"<\/div>\n

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\u56fe 10. \u8bbe\u8ba1\u7684\u57fa\u4e8e GaN \u7684 LLC \u8c10\u632f\u8f6c\u6362\u5668\u539f\u578b\u3002<\/i><\/p>\n

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C. LLC \u539f\u578b\u53ca\u5176\u529f\u7387\u5bc6\u5ea6<\/strong><\/h3>\n

\u5b8c\u6210\u7684\u539f\u578b\u53ca\u5176\u5c3a\u5bf8\u5982\u56fe 11 \u6240\u793a\u3002\u6240\u6709\u6563\u70ed\u5668\u90fd\u8fde\u63a5\u5230\u5b50\u5361\u7684\u5e95\u90e8\uff0c\u8fd9\u5bf9 PCB \u677f #1 \u4e0a\u7684\u5e95\u90e8\u51b7\u5374\u5668\u4ef6\u6709\u6548\u200b\u200b\uff0c\u4f8b\u5982 GaN HEMT\u3001GS66504B\u548c\u6b21\u7ea7\u4fa7\u540c\u6b65\u6574\u6d41\u5668 PCB \u677f #3\u3002<\/p>\n

\"pYYBAGFj3pKAMZVeAAAi19wIymE163\"<\/div>\n

\u8bbe\u8ba1\u7684\u9ad8\u9891 LLC \u8f6c\u6362\u5668\u5728\u534a\u8f7d\u548c\u6ee1\u8f7d\u4e0b\u5de5\u4f5c\u7684\u5173\u952e\u6ce2\u5f62\u5982\u56fe 11 \u548c\u56fe 12 \u6240\u793a\u3002<\/p>\n

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\"poYBAGFj3pOANx6YAABFR1u0xbo456\"<\/div>\n

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\u56fe 11. \u5f53 Vin=400V\u3001Vout=19V\u3001Io=5A Po=95W\u3001Fs=623kHz\uff0850% \u8d1f\u8f7d\uff09\u65f6\uff0c\u6240\u63d0\u51fa\u7684\u9ad8\u529f\u7387\u5bc6\u5ea6 GaN HEMT LLC \u8f6c\u6362\u5668\u7684\u5173\u952e\u5b9e\u9a8c\u6ce2\u5f62\u3002<\/i><\/p>\n

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\u6d4b\u8bd5<\/u>\u4e86\u4e0d\u540c\u8d1f\u8f7d\u4e0b\u7684\u6548\u7387\uff0c\u5982\u56fe 13 \u6240\u793a\uff0c\u4e0d\u5305\u62ec\u8f85\u52a9\u7ed5\u7ec4\u7684\u529f\u7387\u635f\u8017\u3002\u5cf0\u503c\u6548\u7387\u5728 95W\uff0850% \u8d1f\u8f7d\uff09\u65f6\u8fbe\u5230 96.1%\uff0c\u800c\u5728 190W\uff08100% \u8d1f\u8f7d\uff09\u65f6\u7684\u6548\u7387\u4e3a 95.6%\u3002<\/p>\n

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\"pYYBAGFj3pSAELkWAABC5iZJVRQ393\"<\/div>\n

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\u56fe 12. Vin=400V\u3001Vo=19V\u3001Io=1A (19W) \u81f3 10A (190W) \u65f6\u4e0d\u540c\u8d1f\u8f7d\u4e0b\u7684\u6548\u7387\u6027\u80fd\u3002<\/i><\/p>\n

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\u6d4b\u8bd5\u4e86\u4e0d\u540c\u8d1f\u8f7d\u4e0b\u7684\u6548\u7387\uff0c\u5982\u56fe 13 \u6240\u793a\uff0c\u4e0d\u5305\u62ec\u8f85\u52a9\u7ed5\u7ec4\u7684\u529f\u7387\u635f\u8017\u3002\u5cf0\u503c\u6548\u7387\u5728 95W\uff0850% \u8d1f\u8f7d\uff09\u65f6\u8fbe\u5230 96.1%\uff0c\u800c\u5728 190W\uff08100% \u8d1f\u8f7d\uff09\u65f6\u7684\u6548\u7387\u4e3a 95.6%\u3002<\/p>\n

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GaN HEMT \u63d0\u4f9b\u66f4\u9ad8\u7684\u5f00\u5173\u9891\u7387<\/strong><\/h2>\n

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