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1 IGBT鍜孧OSFET鍔熺巼妯″
1.1 鎳�(y墨ng)鐢ㄨ寖鍦�
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闆栫劧鍔熺巼妯″瀛樺湪鍍呰兘鍠潰鍐峰嵒鐨勭己榛�(di菐n)锛屼絾瀹冮倓鏄寤f硾鍦版噳(y墨ng)鐢ㄤ簬澶у姛鐜囬浕鍔涢浕瀛愭妧琛�(sh霉)涓紝鑸囧悓鏈熷晱涓栫殑骞虫澘寮廔GBT/浜屾サ绠″櫒浠朵竴鐖珮浣庛€傜洝绠″钩鏉垮紡鍣ㄤ欢鍦ㄩ洐闈㈠喎鍗荤殑姊濅欢涓嬪彲浠ュ鏁g櫦(f膩)绱�30锛呯殑鐔辨悕鑰楋紝浣嗗姛鐜囨ā濉婁粛鐒跺彈鍒扮敤鎴跺唬娉涚殑姝¤繋銆傚叾鍘熷洜闄や簡瀹夎绨℃槗澶栵紝閭勫湪浜庢ā濉婄殑鑺墖鍜屾暎鐔卞櫒涔嬮枔鐨勭禃绶�銆佸叾鍏�(n猫i)閮ㄥ鍊嬩笉鍚屽厓鍣ㄤ欢鐨勫彲绲勫悎鎬�銆佷互鍙婄敱浜庡ぇ鎵归噺鐢熺敘(ch菐n)鑰屽皫(d菐o)鑷寸殑浣庢垚鏈�銆�

鍦ㄧ暥(d膩ng)浠婄殑甯傚牬涓�锛岀洝绠″悇绋湁绔剁埈鎬х殑鍔熺巼鍣ㄤ欢閮藉湪涓嶆柗鍦扮櫦(f膩)灞曪紝浣嗘槸IGBT妯″鍗荤┅(w臎n)绌�(w臎n)鍕濆嚭锛屽畠鐨勫姛鐜囪寖鍦嶄篃鍦ㄤ笉鏂峰欢浼�銆傜洰鍓嶇敓鐢�(ch菐n)鐨処GBT妯″宸插叿鏈変簡6顎�5kV銆�4.6kV銆�3.3kV鍜�2.5kV鐨勬鍚戦樆鏂烽浕澹撱€備互姝ょ偤鍩虹(ch菙)锛孧W绱氱殑銆侀浕澹撹嚦6kV鐨勮畩娴佸櫒锛堥噰鐢↖GBT涓茶伅(li谩n)鐨勯浕璺級宸茬稉(j墨ng)鍑虹従(xi脿n)銆�
鍙︿竴鏂归潰锛孧OSFET鍓囪鎳�(y墨ng)鐢ㄤ簬瓒婁締瓒婇珮鐨勯牷鐜囪寖鍦�銆備粖澶�锛屼娇鐢ㄥ悎閬╃殑闆昏矾鎷�?f霉)娓慶灏佽鎶€琛�(sh霉)锛屽凡缍�(j墨ng)鍙互鍦�500kHz浠ヤ笂瀵�(sh铆)鐝�(xi脿n)杓冨ぇ鐨勯浕娴�銆�
IGBT鍜孧OSFET妯″宸茬稉(j墨ng)鎴愮偤闆嗘垚闆诲瓙绯荤当(t菕ng)鐨勫熀鏈櫒浠�锛屽悓鏅備篃姝e湪鎴愮偤闆嗘垚姗�(j墨)闆荤郴绲�(t菕ng)鐨勫熀鏈櫒浠�銆�
1.2 绲�(ji茅)妲�(g貌u)鍜屽熀鏈姛鑳�
涓嬮潰鎵€杩扮殑鍔熺巼MOSFET鍜孖GBT鍧囨寚n婧濋亾澧炲挤(qi谩ng)鍨�锛屽洜鐐�锛屽畠浠h〃浜嗘(g貌u)鎴愬姛鐜囨ā濉婄殑鏅堕珨绠$殑涓绘祦銆�

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鍦ㄥぇ澶氭暩(sh霉)鎯呮硜涓�锛屼汉鍊戦噰鐢ㄥ湒2鍜屽湒4鎵€绀虹殑鍨傜洿寮忕祼(ji茅)妲�(g貌u)銆傚湪閫欓噷锛屾煹妤靛拰婧愭サ锛圡OSFET锛夋垨鐧�(f膩)灏勬サ锛圛GBT锛夊潎浣嶄簬鑺墖涓婅〃闈紝鑰岃姱鐗囧簳闈㈠墖妲�(g貌u)鎴愪簡婕忔サ锛圡OSFET锛夋垨闆嗛浕妤碉紙IGBT锛�銆傝矤(f霉)杓夐浕娴佸湪婧濋亾涔嬪鍨傜洿閫氶亷鑺墖銆�
鍦ㄥ湒2鎵€绀虹殑鍔熺巼MOSFET鍜屽湒4鎵€绀虹殑IGBT鍏锋湁骞抽潰寮忔煹妤电祼(ji茅)妲�(g貌u)锛屼篃灏辨槸瑾�锛屽湪灏�(d菐o)閫氱媭鎱�(t脿i)涓�锛屽皫(d菐o)闆绘簼閬撴槸姗悜鐨勶紙姘村钩鐨勶級銆�
骞抽潰鏌垫サ锛堝湪鐝�(xi脿n)浠i珮瀵嗗害鏅堕珨绠′腑鏇寸櫦(f膩)灞曠偤闆欓噸鎿�(ku貌)鏁f煹妤碉級浠嶆槸鐩墠鍔熺巼MOSFET鍜孖GBT涓崰绲�(t菕ng)娌诲湴浣嶇殑鏌垫サ绲�(ji茅)妲�(g貌u)銆�
骞抽潰寮廙OSFET鍜孖GBT绲�(ji茅)妲�(g貌u)鏄緸寰浕瀛愭妧琛�(sh霉)绉绘鑰屼締鐨勶紝鍏舵紡妤垫垨闆嗛浕妤电敱n锛嬶紙MOSFET锛夋垨p锛嬶紙IGBT锛変簳鍗€(q奴)妲�(g貌u)鎴�锛屼綅浜庤姱鐗囪〃闈€€傝矤(f霉)杓夐浕娴佹按骞冲湴娴佺稉(j墨ng)鑺墖銆傚€熷姪浜庝竴鍊嬫哀鍖栧堡锛宯鍗€(q奴)鍙互鑸囪ク搴曠浉浜掗殧闆�锛屽緸鑰屾湁鍙兘灏囧鍊嬬浉浜掔禃绶g殑MOSFET鎴朓GBT鑸囧叾浠栫祼(ji茅)妲�(g貌u)涓€璧烽泦鎴愪簬涓€鍊嬭姱鐗囦箣涓�銆�
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寰炴(g貌u)閫犱笂渚嗙湅锛屽姛鐜嘙OSFET锛堝湒2锛変互鍙奍GBT锛堝湒4锛夌敱鐪惧鐨勭寰柈鍏冪祫鎴�銆傛瘡cm2鑺墖涓婄殑鍠厓鏁�(sh霉)鍙仈(d谩)8.2脳105锛堟渶鏂扮殑鑰愬鐐�60V鐨凪OSFET锛変互鍙�1脳105锛堥珮鑰愬IGBT锛�銆�
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鍦ㄩ€欎簺浜曞崁(q奴)閲屽瓨鍦ㄨ憲灞ょ媭鐨刵锛嬪瀷纭�锛屽畠鍊戣垏婧愭サ绔紙MOSFET锛夋垨鐧�(f膩)灏勬サ绔紙IGBT锛夌殑閲戝爆閶佽〃闈㈢浉閫�銆傚湪閫欎簺n锛嬪崁(q奴)涔嬩笂锛屽厛鏄鍏ヤ竴灞よ杽鐨凷iO2绲曠罚灞�锛岀劧鍚庡啀褰㈡垚鎺у埗鍗€(q奴)锛堟煹妤碉級锛屼緥濡傞噰鐢╪锛嬪瀷澶氭櫠纭呮潗鏂�銆�
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鐩磋嚦n锛嶅崁(q奴)鐐烘锛孧OSFET鍜孖GBT鍏锋湁椤炰技鐨勭祼(ji茅)妲�(g貌u)銆傚畠鍊戝嚭鐝�(xi脿n)鍦ㄧ涓夋サ鍗€(q奴)锛屽緸鑰屾焙瀹氫簡鍚勮嚜涓嶅悓鐨勬€ц兘銆�

1.2.1 Power MOSFET
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鍥犵偤锛屽湪婕傜Щ鍗€(q奴)鍏�(n猫i)褰㈡垚闆绘祦鐨勯浕瀛愬叏閮ㄦ槸澶氬瓙锛屾墍浠�锛屽湪楂橀樆鐨刵锛嶅崁(q奴)鍏�(n猫i)涓嶆渻鍑虹従(xi脿n)鍏╃ó杓夋祦瀛愮殑娉涙揩銆傚洜姝わ紝MOSFET鏄竴鍊嬪柈妤靛瀷鍣ㄤ欢銆�
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鍥犳锛岄€氭厠(t脿i)澹撻檷
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V锛圔R锛塂S鐐烘紡婧愭鍚戞搳绌块浕澹�銆�
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鍙︿竴鏂归潰锛屽儏鍍呯敱澶氬瓙鎵挎摂(d膩n)鐨勯浕鑽烽亱(y霉n)杓告矑鏈変换浣曞瓨鍎叉晥鎳�(y墨ng)锛屽洜姝わ紝寰堝鏄撳(sh铆)鐝�(xi脿n)妤电煭鐨勯枊闂�(gu膩n)鏅傞枔銆傜暥(d膩ng)鐒�锛屽湪鑺墖灏哄寰堝ぇ鐨勫櫒浠朵腑锛堥珮鑰愬/澶ч浕娴侊級锛屽叾鍏�(n猫i)閮ㄩ浕瀹瑰厖鏀鹃浕鎵€闇€鐨勯﹨(q奴)鍕曢浕娴佹渻鐩哥暥(d膩ng)澶�锛屽洜鐐猴紝姣廲m2鐨勮姱鐗囬潰绌嶄笂鐨勯浕瀹圭磩0.3渭F銆�
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琛�1 MOSFET鐨勫瘎鐢熼浕瀹瑰強闆婚樆

1.2.2 IGBT
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琛�2 IGBT鐨勫瘎鐢熼浕瀹瑰強闆婚樆

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鍚孭T鍨婭GBT鐩告瘮锛孨PT鍨婭GBT鐨勭櫦(f膩)灏勬サ鏁堢巼杓冨皬锛岃級娴佸瓙澹藉懡杓冮暦锛屼笖鍙冩暩(sh霉)鍙互琚洿绮剧⒑鍦版帶鍒�銆傚畠鐨勫劒(y艒u)榛�(di菐n)濡備笅锛�
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2锛夐棞(gu膩n)鏂锋檪鐨勬嫋灏鹃浕娴佽純灏忥紝浣嗛儴鍒嗘儏娉佷笅鏅傞枔杓冮暦锛屽湪Tj=125鈩冩檪闂�(gu膩n)鏂锋悕鑰楄純浣庯紝锛堝湪纭棞(gu膩n)鏂锋檪锛夐枊闂�(gu膩n)鏅傞枔杓冪煭浠ュ強闁嬮棞(gu膩n)鎼嶈€楄純浣�锛�

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4锛夊湪閬庤級鏅傚皪闆绘祦鐨勯檺鍒朵綔鐢ㄨ純濂�锛屽洜鑰屽叿鏈夎純楂樼殑閬庤級鑳藉姏銆�
鑸嘝T鍨婭GBT鎵€閲囩敤鐨勫寤剁敓闀峰紡瑗簳鐩告瘮锛岀洰鍓嶄綔鐐篘PT鍨婭GBT鍩烘湰鏉愭枡鐨勫悓璩�(zh矛)n锛嶅熀鐗囩殑鐢熺敘(ch菐n)鏇村鏄撲竴浜�锛屽墠鎻愭槸瑕佸叿鍌欒檿鐞嗘サ钖勭鐗囩殑鑳藉姏銆�
1.3 闈滄厠(t脿i)鐗规€�
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1.3.1 鍔熺巼MOSFET
鐢变笂杩扮殑鍘熺悊鍙互灏�(d菐o)鍑哄鍦�8锛坅锛夋墍绀虹殑鍔熺巼MOSFET鐨勮几鍑虹壒鎬с€�
1.3.1.1 姝e悜鎴?f脿n)椤烞(t脿i)
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1.3.1.3 鍙嶅悜閬�(y霉n)琛�
鍦ㄥ弽鍚戦亱(y霉n)琛屾檪锛堢涓夎薄闄愶級锛屽鏋淰GS灏忎簬VGS锛坱h锛夛紝鍓嘙OSFET鏈冮’绀哄嚭浜屾サ绠$壒鎬у鍦�8锛坅锛変腑鐨勫(sh铆)绶氭墍绀�銆傞€欎竴鐗规€х敱MOSFET绲�(ji茅)妲�(g貌u)涓殑瀵勭敓浜屾サ绠℃墍寮曡捣銆傞泦闆绘サ锛嶅熀妤电殑pn绲�(ji茅)鎴栨簮婕弍n绲�(ji茅)锛堝弽鍚戜簩妤电鐨勯洐妤靛瀷闆绘祦锛夌殑灏�(d菐o)閫氶浕澹撳垎鍒ユ焙瀹氫簡MOSFET鍦ㄥ弽鍚戞檪鐨勫皫(d菐o)閫氱壒鎬у鍦�9锛坅锛夋墍绀恒€�
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濡傚湒9锛坆锛夋墍绀猴紝鍘熷墖涓婂彧瑕佹煹婧愰浕澹撳ぇ浜庢煹妤甸枊鍟熼浕澹�锛屽嵆浣挎紡婧愰浕澹撶偤璨�(f霉)鍊硷紝MOSFET鐨勬簼閬撲篃鍙互鍙楁帶鑷冲皫(d菐o)閫氱媭鎱�(t脿i)銆�
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1.3.2 IGBT
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1.3.2.2 灏�(d菐o)閫氱媭鎱�(t脿i)
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