{"id":5562,"date":"2018-06-07T00:00:22","date_gmt":"2018-06-06T15:00:22","guid":{"rendered":"http:\/\/micro.rohm.com\/cn\/techweb\/?p=5562"},"modified":"2021-12-03T17:12:32","modified_gmt":"2021-12-03T09:12:32","slug":"%e9%99%8d%e5%8e%8b%e5%9e%8b%e8%bd%ac%e6%8d%a2%e5%99%a8%e5%b7%a5%e4%bd%9c%e6%97%b6%e7%9a%84%e7%94%b5%e6%b5%81%e8%b7%af%e5%be%84","status":"publish","type":"post","link":"https:\/\/techclass.wfjydl.com\/knowledge\/dcdc\/dcdc_pwm\/dcdc_pwm03\/2767","title":{"rendered":"\u964d\u538b\u578b\u8f6c\u6362\u5668\u5de5\u4f5c\u65f6\u7684\u7535\u6d41\u8def\u5f84"},"content":{"rendered":"<p>\u5728\u8fdb\u884cDC\/DC\u8f6c\u6362\u5668\u7684PCB\u677f\u5e03\u5c40\u65f6\uff0c\u8981\u60f3\u4e86\u89e3\u5e94\u8be5\u8003\u8651\u7684\u4e8b\u9879\u548c\u4e3a\u4ec0\u4e48\u8fd9\u6837\u505a\uff0c\u9700\u8981\u5148\u4e86\u89e3\u964d\u538b\u578b\u8f6c\u6362\u5668\u5de5\u4f5c\u65f6\u7684\u7535\u6d41\u8def\u5f84\u3002<br 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target=\"_blank\">\u964d\u538b\u578b\u8f6c\u6362\u5668\u5de5\u4f5c\u65f6\u7684\u7535\u6d41\u8def\u5f84<\/a><\/li>\r\n\t\t\t<li><a href=\"https:\/\/techclass.wfjydl.com\/knowledge\/dcdc\/dcdc_pwm\/dcdc_pwm03\/3164\" target=\"_blank\">\u5f00\u5173\u8282\u70b9\u7684\u632f\u94c3<\/a><\/li>\r\n\t\t\t<li><a href=\"https:\/\/techclass.wfjydl.com\/knowledge\/dcdc\/dcdc_pwm\/dcdc_pwm03\/3202\" target=\"_blank\">\u8f93\u5165\u7535\u5bb9\u5668\u548c\u4e8c\u6781\u7ba1\u7684\u914d\u7f6e<\/a><\/li>\r\n\t\t\t<li><a href=\"https:\/\/techclass.wfjydl.com\/knowledge\/dcdc\/dcdc_pwm\/dcdc_pwm03\/3256\" target=\"_blank\">\u6563\u70ed\u5b54\u7684\u914d\u7f6e <\/a><\/li>\r\n\t\t\t<li><a href=\"https:\/\/techclass.wfjydl.com\/knowledge\/dcdc\/dcdc_pwm\/dcdc_pwm03\/3254\" target=\"_blank\">\u7535\u611f\u7684\u914d\u7f6e <\/a><\/li>\r\n\t\t\t<li><a href=\"https:\/\/techclass.wfjydl.com\/knowledge\/dcdc\/dcdc_pwm\/dcdc_pwm03\/4378\" target=\"_blank\">\u8f93\u51fa\u7535\u5bb9\u5668\u7684\u914d\u7f6e 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target=\"_blank\">\u566a\u58f0\u5bf9\u7b56\uff1a\u7f13\u51b2\u7535\u8def\u3001\u81ea\u4e3e\u7535\u963b\u3001\u6805\u6781\u7535\u963b<\/a><\/li>\r\n\t\t<\/ul>\r\n\t<\/div>\r\n<\/div>\r\n\n<div class=\"fBox\">\n<div style=\"width: 313px\" class=\"fl\">\n<p style=\"margin-bottom: 10px;\"><strong>\u964d\u538b\u578b\u8f6c\u6362\u5668\u5de5\u4f5c\u65f6\u7684\u7535\u6d41\u8def\u5f84<\/strong><\/p>\n<p>\n\u53f3\u4fa7\u7535\u8def\u56fe\u662f\u79f0\u4e3a\u201c\u4e8c\u6781\u7ba1\u6574\u6d41\u201d\u6216\u201c\u5f02\u6b65\u6574\u6d41\u201d\u7684\u964d\u538b\u578bDC\/DC\u8f6c\u6362\u5668IC\u53ca\u5176\u5916\u7f6e\u7535\u8def\u3002\u8fde\u63a5\u4e8eBOOT\u5f15\u811a\u7684\u7535\u5bb9\u5668\u662f\u7528\u6765\u9a71\u52a8\u5185\u7f6eNch-MOSOFET\u7684\u81ea\u4e3e\u7528\u5668\u4ef6\u3002\u53e6\u5916\uff0c\u8fde\u63a5\u4e8eCOMP\u5f15\u811a\u7684\u7535\u963b\u548c\u7535\u5bb9\u5668\u662f\u76f8\u4f4d\u8865\u507f\u7528\u5668\u4ef6\u3002\u6709\u4e9bIC\u4e0d\u5b58\u5728\u8fd9\u4e9b\u5f15\u811a\u3002\u5176\u4ed6\u5f15\u811a\u548c\u5143\u5668\u4ef6\u4e0d\u8a00\u800c\u55bb\u662f\u57fa\u672c\u7684\u5f15\u811a\u548c\u5fc5\u8981\u7684\u5916\u7f6e\u5143\u5668\u4ef6\u3002<\/p>\n<p>Figure 1-a \u7684\u7ea2\u8272\u7ebf\u8868\u793a\u5f00\u5173Q<sub>1<\/sub>\u5bfc\u901a\u65f6\u6d41\u8fc7\u7684\u4e3b\u8981\u7535\u6d41\u548c\u8def\u5f84\u4ee5\u53ca\u65b9\u5411\u3002C<sub>BYPASS<\/sub>\u4e3a\u9ad8\u9891\u7528\u7684\u53bb\u8026\u7535\u5bb9\u5668\uff0cC<sub>IN<\/sub>\u4e3a\u5927\u5bb9\u91cf\u7535\u5bb9\u5668\u3002<\/p>\n<p>\u5f00\u5173Q<sub>1<\/sub>\u5bfc\u901a\u7684\u77ac\u95f4\uff0c\u6d41\u8fc7\u6025\u5267\u7684\u7535\u6d41\uff0c\u5176\u5927\u534a\u6765\u81eaC<sub>BYPASS<\/sub>\u00a0\uff0c\u5176\u6b21\u6765\u81eaC<sub>IN<\/sub>\u3002\u7f13\u548c\u53d8\u5316\u7684\u7535\u6d41\u7531\u8f93\u5165\u7535\u6e90\u4f9b\u7ed9\u3002<\/p>\n<p>Figure 1-b \u7684\u7ea2\u8272\u7ebf\u8868\u793a\u5f00\u5173Q<sub>1<\/sub>\u5173\u65ad\u65f6\u7684\u7535\u6d41\u8def\u5f84\u3002\u4e8c\u6781\u7ba1D<sub>1<\/sub>\u5bfc\u901a\uff0c\u7535\u611fL\u84c4\u79ef\u7684\u80fd\u91cf\u88ab\u91ca\u653e\u81f3\u8f93\u51fa\u7aef\u3002<\/p>\n<p>\u964d\u538b\u578b\u8f6c\u6362\u5668\u7684\u8f93\u51fa\u7aef\u7535\u611f\u4e32\u8054\u63d2\u5165\uff0c\u56e0\u6b64\u8f93\u51fa\u7535\u5bb9\u5668\u7684\u7535\u6d41\u867d\u7136\u4e0a\u4e0b\u53d8\u52a8\uff0c\u4f46\u6bd4\u8f83\u5e73\u6ed1\u3002<\/p>\n<p>Figure 1-c \u7684\u7ea2\u8272\u7ebf\u8868\u793aFigure 1-a\u548c1-b\u7684\u5dee\u5206\u3002\u5f00\u5173Q<sub>1<\/sub>\u4ece\u5173\u65ad\u5411\u5bfc\u901a\u3001\u4ece\u5bfc\u901a\u5411\u5173\u65ad\u5207\u6362\u65f6\uff0c\u7ea2\u8272\u7ebf\u90e8\u5206\u7684\u7535\u6d41\u90fd\u4f1a\u6025\u5267\u53d8\u5316\u3002\u8be5\u7cfb\u7edf\u53d8\u5316\u6025\u5267\uff0c\u56e0\u6b64\u51fa\u73b0\u542b\u6709\u8f83\u591a\u9ad8\u6b21\u8c10\u6ce2\u7684\u7535\u6d41\u6ce2\u5f62\u3002<\/p>\n<p>\u8be5\u5dee\u5206\u7cfb\u7edf\u5728PCB\u5e03\u5c40\u65f6\u662f\u91cd\u8981\u4e4b\u5904\uff0c\u9700\u8981\u7ed9\u4e88\u6700\u5927\u9650\u5ea6\u7684\u91cd\u89c6\u3002<\/p>\n<\/p><\/div>\n<div class=\"fr\" style=\"width: 377px;\">\n<p class=\"mt60\"><img loading=\"lazy\" decoding=\"async\" src=\"\/upload\/2018\/06\/150823_01.png\" alt=\"\u5f00\u5173\u5143\u4ef6Q1ON\u65f6\u7684\u7535\u6d41\u8def\u5f84\" width=\"377\" height=\"188\" \/><\/p>\n<p class=\"wp-caption-text\">Figure 1-a. \u5f00\u5173\u5143\u4ef6Q<sub>1<\/sub>ON\u65f6\u7684\u7535\u6d41\u8def\u5f84<\/p>\n<p class=\"mt60\"><img loading=\"lazy\" decoding=\"async\" src=\"\/upload\/2018\/06\/150823_02.png\" alt=\"\u5f00\u5173\u5143\u4ef6Q1OFF\u65f6\u7684\u7535\u6d41\u8def\u5f84\" width=\"377\" height=\"187\" \/><\/p>\n<p class=\"wp-caption-text\">Figure 1-b. \u5f00\u5173\u5143\u4ef6Q<sub>1<\/sub>OFF\u65f6\u7684\u7535\u6d41\u8def\u5f84<\/p>\n<p class=\"mt60\"><img loading=\"lazy\" decoding=\"async\" src=\"\/upload\/2018\/06\/150823_03.png\" alt=\"\u7535\u6d41\u5dee\u5206\u3001\u5e03\u5c40\u4e0a\u7684\u91cd\u8981\u4f4d\u7f6e\" width=\"377\" height=\"184\" \/><\/p>\n<p class=\"wp-caption-text\">Figure 1-c. 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