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<p><span style="font-size: 14px;"><span style="font-family: 宋体;"> 全桥å¼?strong>开关电æºå˜åŽ‹å™¨</strong>å‚数怎么计算，很å¤?a href="http://www.chenfeipower.com/product/product-0001,0015.shtml">开关电æºå˜åŽ‹å™¨</a>çš„è®¾è®¡è€…éƒ½ä¼šé—®åˆ°è¿™æ ·ä¸€ä¸ªé—®é¢˜ï¼Œä¸‹é¢å°±ç”±<a href="http://www.chenfeipower.com">深圳晨飞电å</a>的技术专员为大家讲解一下ã€?nbsp; <br />
大家之å‰éƒ½å·²äº†è§£å…¨æ¡¥å¼å¼€å…³ç”µæºå˜åŽ‹å™¨çš„工作原ç†ä¸ŽæŽ¨æŒ½å¼å˜åŽ‹å™¨å¼€å…³ç”µæºçš„工作原ç†æ˜¯éžå¸¸æŽ¥è¿‘的，åªæ˜¯å˜åŽ‹å™¨çš„激励方å¼ä¸Žå·¥ä½œç”µæºçš„接入方å¼æœ‰ç‚¹ä¸å?å›?æ¤ï¼Œç”¨äºŽè®¡ç®—推挽å¼å˜åŽ‹å™¨å¼€å…³ç”µæºå˜åŽ‹å™¨åˆçº§çº¿åœˆN1绕组åŒæ•°çš„æ•°å¦è¡¨è¾¾å¼ï¼ŒåŒæ ·å¯ä»¥ç”¨äºŽå…¨æ¡¥å¼å˜åŽ‹å™¨å¼€å…³ç”µæºå˜åŽ‹å™¨åˆçº§çº¿åœˆN1绕组åŒæ•°çš„计算ã€?br />
全桥å¼å¼€å…³ç”µæºå˜åŽ‹å™¨ä¸ŽæŽ¨æŒ½å¼å¼€å…³ç”µæºä¸€æ ·ï¼Œä¹Ÿå±žäºŽåŒæ¿€å¼å¼€å…³ç”µæºï¼Œå› æ¤ç”¨äºŽå…¨æ¡¥å¼å¼€å…³ç”µæºçš„å˜åŽ‹å™¨é“心的ç£æ„Ÿåº”强度B,å¯ä»Žè´Ÿçš„最大å€?Bm,å˜åŒ–åˆ°æ£ çš„æœ€å¤§å€?Bm,并且å˜åŽ‹å™¨é“心å¯ä»¥ä¸ç”¨ç•™æ°”隙。全桥å¼å¼€å…³ç”µæºå˜åŽ‹å™¨çš„计算方法与å‰é¢æŽ¨æŒ½å¼å¼€å…³ç”µæºå˜åŽ‹å™¨çš„计算方法基本相åŒï¼Œæ ¹æ®æŽ¨æŒ½å¼å¼€å…³ç”µæºå˜åŽ?器åˆçº§çº¿åœˆåŒæ•°è®¡ç®—å…¬å¼ï¼š <img width="377" height="134" alt="" src="/UploadFiles/FCK/1(4).jpg" /> <br />
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由上é¢çš„å…¬å¼çœ‹å‡ºï¼Œè™½ç„¶æ˜¯ç”¨æ¥è®¡ç®—推挽å¼å˜åŽ‹å™¨å¼€å…³ç”µæºå˜åŽ‹å™¨åˆçº§çº¿åœˆN1绕组åŒæ•°çš„å…¬å¼ï¼Œä½†å¯¹äºŽå…¨æ¡¥å¼å˜åŽ‹å™¨å¼€å…³ç”µæºå˜åŽ‹å™¨åˆçº§çº¿åœˆåŒæ•°çš„计算åŒæ ·æœ‰ 效ã€?N1为å˜åŽ‹å™¨åˆçº§çº¿åœˆN1绕组的最少åŒæ•°ï¼ŒS为å˜åŽ‹å™¨é“心的导ç£é¢ç§?å•ä½ï¼šå¹³æ–¹åŽ˜ç±?，Bm为å˜åŽ‹å™¨é“心的最大ç£æ„Ÿåº”强度(å•ä½ï¼šé«˜æ–?;Ui为开关电 æºçš„工作电压，å³åŠ 到å˜åŽ‹å™¨åˆçº§çº¿åœˆN1绕组两端的电压，å•ä½ä¸ºä¼;τ = Ton,为控制开关的接通时间，简称脉冲宽度，或电æºå¼€å…³ç®¡å¯¼é€šæ—¶é—´çš„宽度(å•ä½ï¼šç§’); F为工作频率，å•ä½ä¸ºèµ«èŠï¼Œä¸€èˆ¬åŒæ¿€å¼å¼€å…³ç”µæºå˜åŽ‹å™¨å·¥ä½œäºŽæ£ã€å激输出的情况下，其ä¼ç§’容é‡å¿…须相ç‰ï¼Œå› æ¤ï¼Œå¯ä»¥ç›´æŽ¥ç”¨å·¥ä½œé¢‘率æ¥è®¡ç®—å˜åŽ‹å™¨åˆçº§çº¿åœ?N1绕组的åŒæ•?Få’?tau;å–值è¦é¢„ç•™20%å·¦å³çš„ä½™é‡ã€‚å¼ä¸çš„指数是统一å•ä½ç”¨çš„，选用ä¸åŒå•ä½ï¼ŒæŒ‡æ•°çš„值也ä¸ä¸€æ ·ï¼Œè¿™é‡Œé€‰ç”¨CGSå•ä½åˆ¶ï¼Œå³ï¼šé•¿åº¦ä¸ºåŽ˜ç±?(cm)，ç£æ„Ÿåº”强度为高æ–?Gs)，ç£é€šå•ä½ä¸ºéº¦å…‹æ–¯éŸ¦(Mx)ã€?br />
å°ç¼–æ醒您，在设计开关电æºå˜åŽ‹å™¨çš„时候，一定è¦ä»Žå¤šæ–¹é¢èµ„料进行å‚è€ƒï¼Œè¿™æ ·å®ƒè®¾è®¡å¾—æœ€æœ‰ä»·å€¼ã€‚æœ¬ç¯‡æ–‡ç« ç”±æ·±åœ³æ™¨é£žç”µå技术团队æ供，转载请注明。网å€ï¼šhttp://www.chenfeipower.comã€?br />
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