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1 鍓嶈█
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2 绱板垎鍘熺悊
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鑻ョ悊鎯崇殑闆绘祦婧愪互鎭掑箙鍊肩偤I 鐨勪笁鐩稿钩琛¢浕娴乮U銆乮V銆乮W 渚涚郸闆绘绻炵祫锛�
鍗筹細
iU=I锛妔in锛坵t锛�
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iW=I锛妔in锛坵t+4锛奝I/3锛�
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T=TU+TV+TW=3/2锛妅锛奍锛妔in锛圥I/2-wt+theta锛�=3/2锛妅锛奍
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3.1 DSP妯″瑷�(sh猫)瑷�
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DSP杓稿叆淇¤櫉鍖呮嫭姝ラ€茶剤娌栦俊铏烠P銆佹柟鍚戞帶鍒朵俊铏熴€佽劔姗熶俊铏�锛� 閬庢祦淇濊淇¤櫉銆傞€欏咕绋俊铏熷潎閫氶亷楂橀€熷厜鑰﹂€f帴鍒癉SP鐨勫紩鑵充笂锛屽彟澶栭倓鏈夌窗鍒嗘鏁�(sh霉)鍙婇浕娴侀伕鎿囦俊铏�銆傜暥鑴淇¤櫉鐐烘湁鏁堟檪锛岄﹨(q奴)鍕曞櫒杓稿嚭鍒伴浕姗熺殑闆绘祦琚垏鏂�锛岄浕姗熻綁(zhu菐n)瀛愯檿浜庤嚜鐢辩媭鎱�(t脿i)锛堣劔姗熺媭鎱�(t脿i)锛�銆傚弽楗嬮浕娴侀€氶亷DSP鑷付鐨勭殑10 浣嶆ā鏁�(sh霉)杞�(zhu菐n)鎻涘櫒锛圓D锛夐噰妯o紝鍙嶉鐨勯浕娴侀€氶亷涓€瀹氱殑绠楁硶鍚�锛岀敱DSP鑷付鐨凱WM鍙h几鍑烘帶鍒堕浕姗熴€�
3.2 闆绘祦杩借工鍨嬪洖璺�
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3.3 鍔熺巼椹�(q奴)鍕曢浕璺�
椹�(q奴)鍕曞櫒鐨勪富鍥炶矾閲囩敤浜�-鐩�-浜ら浕澹撳瀷閫嗚畩鍣ㄥ舰寮�锛岀敱鏁存祦婵炬尝闆昏矾銆佷笁鐩搁€嗚畩鍣ㄤ互鍙婃閫查浕姗熺瓑绲勬垚銆傛暣娴佹烤娉㈤浕璺(g貌u)鎴愮洿娴侀浕澹撴簮锛屽畬鎴�220V銆�50Hz 浜ゆ祦闆绘簮鍒扮洿娴侀浕婧愮殑璁婃彌銆傞€嗚畩鍣ㄥ鐝�(xi脿n)寰炵洿娴侀浕鍒拌畩闋昏畩澹撲氦娴侀浕鐨勮綁(zhu菐n)鎻�锛岀偤涓夌浉娣峰悎寮忔閫查浕姗熺殑瀹氬瓙绻炵祫鎻愪緵瑕佹眰鐨勪氦娴侀浕娴�銆傞€嗚畩鍣ㄧ敱浠欑鍏徃鐢熺敘(ch菐n)鐨勫叚鍙狦30N60B3DMOS绠$祫鎴�锛屾(g貌u)鎴愪笁鐩搁€嗚畩姗嬨€傞﹨(q奴)鍕曞櫒閲囩敤鍏╁彧闆婚樆妾㈡脯姝ラ€查浕姗熺浉闆绘祦鐨勭灛鏅傚€�銆�
鍔熺巼椹�(q奴)鍕曢浕璺殑鏍稿績鏄姛鐜囨ā濉婏紙MOS绠★級銆侻OS绠� 鑸囬浕娴佽拷韫ゅ瀷PWM 杓稿嚭涔嬮枔蹇呴爤閫氶亷灏堢敤楂橀€熷厜鑰﹂€f帴銆傛牴鎿�(j霉)MOS绠$殑閬庢祦鍊煎拰闆绘宄板€肩窔闆绘祦渚嗛伕鐢ㄥ悎閬╃殑MOS绠�锛屽嵆闆绘鐨勭窔闆绘祦鐨勫嘲鍊煎皬浜嶮OS绠$殑鏈€澶ч浕娴佸€笺€傛湰瑷�(sh猫)瑷堜腑闆绘鏈€澶х浉闆绘祦鐐�8.1A锛岃┎闆绘祦鏄浉闆绘祦鐨勬湁鏁堝€�锛屽嘲鍊肩浉闆绘祦鐐�8.1锛� sqrt锛�2锛� = 11.312A 銆傛澶栵紝闆绘绻炵祫鍦ㄤ笁瑙掑舰鎺ユ硶鏅�锛岀窔闆绘祦鏄浉闆绘祦鐨�3 鍊�锛屾墍浠ョ窔闆绘祦宄板€肩偤19.6A銆傜敱G30N60B3DPDF鏂囨獢鐭ワ紝鍏舵渶澶ф祦鍊肩偤30A,鏁呭彲浠ヤ繚璀夋甯镐娇鐢�锛屾甯稿伐浣滆姹傞仼鐣�?sh霉)绾愁杽宓㎡(sh猫)瑷堜繚璀夊収(n猫i)閮ㄧ祼(ji茅)婧案閬犲皬浜�150鏀濇皬搴�锛屽洜姝よ澶栧姞鏁g啽鍣ㄥ苟寮峰埗棰ㄥ喎锛屼互淇濊瓑MOS绠℃甯稿伐浣溿€�
3.4骞跺彛閫氳▕锛�
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3.5 鎺у埗杌熶欢娴佺▼
涓荤▼搴忔祦绋嬪湒

涓柗閮ㄥ垎鐨勬祦绋嬪湒

鐐烘笡灏戝姛鑰楀拰淇濊闆绘锛岃ō(sh猫)缃簡鑷嫊鍗婃祦鍔熻兘锛屽畠鐢辨化鐠�(hu谩n)姣旇純鍣ㄨ嚜鍕曢€茶瑾�(di脿o)绡€(ji茅)銆�
4 绲�(ji茅)璜�
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