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<div style="line-height:170%; "><span style=" color:rgb(0,0,0); font-size:9.5000pt; "> 深圳晨飞电å技术团队æ醒您ï¼?/span><span style=" color:rgb(0,0,0); font-size:9.5000pt; ">æ£æ¿€å¼?a href="http://www.chenfeipower.com">开关电æºå˜åŽ‹å™¨</a>å‚数的计算主è¦ä»Žè¿™å‡ 个方é¢æ¥è€ƒè™‘。一个是å˜åŽ‹å™¨åˆçº§çº¿åœˆçš„åŒæ•°å’Œä¼ç§’容é‡ï¼Œä¼ç§’容é‡è¶Šå¤§å˜åŽ‹å™¨çš„励ç£ç”µæµå°±è¶Šå°ï¼›å¦ä¸€ä¸ªæ˜¯å˜åŽ‹å™¨åˆã€æ¬¡çº§çº¿åœˆçš„åŒæ•°æ¯”，以åŠå˜åŽ‹å™¨å„个绕组的é¢å®šè¾“入或输出电æµæˆ–功率。关于开关电æºå˜åŽ‹å™¨çš„工作原ç†ä»¥åŠå‚数设计åŽé¢è¿˜è¦æ›´è¯¦ç»†åˆ†æžï¼Œè¿™é‡Œåªåšæ¯”较简å•çš„介ç»ã€?/span></div>
<div style="line-height:170%; "><span style=" color:rgb(0,0,0); font-size:9.5000pt; "> 　</span><span style=" color:rgb(0,0,0); font-size:9.5000pt; ">当输入电压UiåŠ äºŽå¼€å…³ç”µæºå˜åŽ‹å™¨åˆçº§çº¿åœˆçš„两端，且å˜åŽ‹å™¨çš„所有次级线圈å‡å¼€è·¯æ—¶ï¼Œæµè¿‡å˜åŽ‹å™¨çš„电æµåªæœ‰åŠ±ç£ç”µæµï¼Œå˜åŽ‹å™¨é“心ä¸çš„ç£é€šé‡å…¨éƒ¨éƒ½æ˜¯ç”±åŠ±ç£ç”µæµäº§ç”Ÿçš„。当控制开关接通以åŽï¼ŒåŠ±ç£ç”µæµå°±ä¼šéšæ—¶é—´å¢žåŠ è€Œå¢žåŠ ï¼Œå˜åŽ‹å™¨é“心ä¸çš„ç£é€šé‡ä¹Ÿéšæ—¶é—´å¢žåŠ è€Œå¢žåŠ ã€‚æ ¹æ®ç”µç£æ„Ÿåº”定ç†ï¼še1 = L1di/dt = N1dÑ„/dt = Ui —— K接通期é—?nbsp;ï¼?-92ï¼?/span></div>
<div style="line-height:170%; "><span style=" color:rgb(0,0,0); font-size:9.5000pt; ">å¼ä¸E1为å˜åŽ‹å™¨åˆçº§çº¿åœˆäº§ç”Ÿçš„电动势，L1为å˜åŽ‹å™¨åˆçº§çº¿åœˆçš„电感é‡ï¼?nbsp;ф为å˜åŽ‹å™¨é“心ä¸çš„ç£é€šé‡ï¼ŒUi为å˜åŽ‹å™¨åˆçº§çº¿åœˆçš„输入电压。其ä¸ç£é€šé‡Ñ„ 还å¯ä»¥è¡¨ç¤ºä¸ºï¼šÑ? S×B ï¼?-93）上å¼ä¸ï¼ŒS为å˜åŽ‹å™¨é“心的导ç£é¢ç§¯ï¼ˆå•ä½ï¼šå¹³æ–¹åŽ˜ç±³ï¼‰ï¼ŒB为ç£æ„Ÿåº”强度，也称ç£æ„Ÿåº”密度（å•ä½ï¼šé«˜æ–¯ï¼‰ï¼Œå³ï¼šå•ä½é¢ç§¯çš„ç£é€šé‡ã€‚把ï¼?-93）å¼ä»£å…¥ï¼?-92）å¼å¹¶è¿›è¡Œç§¯åˆ†ï¼š</span></div>
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