鍗囧鎷�?f霉)娴(ji茅)妲�(g貌u)鍦ㄥ姛鐜囬浕瀛愰牁(l菒ng)鍩熼潪甯搁噸瑕�锛屼絾鏄浕鎰熷€肩殑閬告搰骞朵笉绺芥槸鍍忛€氬父鍋囪ō(sh猫)鐨勯偅妯ｇ啊(ji菐n)鍠�銆傚湪dc-dc鍗囧杞�(zhu菐n)鎻涘櫒涓紝鎵€閬搁浕鎰熷€兼渻(hu矛)褰遍熆杓稿叆闆绘祦绱嬫尝銆佽几鍑洪浕瀹瑰ぇ灏忓拰鐬厠(t脿i)闊挎噳(y墨ng)銆傞伕鎿囨纰虹殑闆绘劅鍊兼湁鍔╀簬鍎�(y艒u)鍖栬綁(zhu菐n)鎻涘櫒灏哄鑸囨垚鏈紝骞剁⒑淇濆湪鎵€闇€鐨勫皫(d菐o)閫氭ā寮忎笅宸ヤ綔銆傛湰鏂囪瑳杩扮殑鏄湪涓€瀹氳寖鍦嶇殑杓稿叆闆诲涓嬶紝瑷�(j矛)绠楅浕鎰熷€间互缍寔鎵€闇€绱嬫尝闆绘祦鍜屾墍閬稿皫(d菐o)閫氭ā寮忕殑鏂规硶锛屽苟浠嬬垂浜嗕竴绋敤浜庤▓(j矛)绠楄几鍏ラ浕澹撲笂闄愬拰涓嬮檺妯″紡閭婄晫鐨勬暩(sh霉)瀛�(xu茅)鏂规硶锛岄倓鎺㈣◣浜嗗浣曚娇鐢ㄥ畨妫編鍗婂皫(d菐o)楂旂殑WebDesigner?鍦ㄧ窔瑷�(sh猫)瑷�(j矛)宸ュ叿渚嗗姞閫熼€欎簺瑷�(sh猫)瑷�(j矛)姝ラ銆�

ConductionMode

灏�(d菐o)閫氭ā寮�

鍗囧杞�(zhu菐n)鎻涘櫒鐨勫皫(d菐o)閫氭ā寮忕敱鐩稿皪(du矛)浜庣洿娴佽几鍏ラ浕娴�(IIN)鐨勯浕鎰熺磱娉㈤浕娴佸嘲宄板€�(螖IL)鐨勫ぇ灏忔焙瀹�銆傞€欏€�(g猫)姣旂巼鍙畾缇╃偤闆绘劅绱嬫尝绯绘暩(sh霉)(KRF)銆傞浕鎰熻秺楂�锛岀磱娉㈤浕娴佸拰KRF灏辫秺浣�銆�

(1)锛�

鍏朵腑

(2)

鍦ㄩ€ｇ簩(x霉)灏�(d菐o)閫氭ā寮�(CCM)涓�锛屾甯搁枊闂�(gu膩n)鍛ㄦ湡鍏�(n猫i)锛岀灛鏅�(sh铆)闆绘劅闆绘祦涓嶆渻(hu矛)閬�(d谩)鍒伴浂(鍦�1)銆傚洜姝�锛岀暥(d膩ng)螖IL灏忎簬IIN鐨�2鍊嶆垨KRF<2鏅�(sh铆)锛孋CM缍寔涓嶈畩銆侻OSFET鎴栦簩妤电蹇呴爤浠CM灏�(d菐o)閫�銆傞€欑ó妯″紡閫氬父閬╃敤浜庝腑绛夊姛鐜囧拰楂樺姛鐜囪綁(zhu菐n)鎻涘櫒锛屼互鏈€澶ч檺搴﹀湴闄嶄綆鍏冧欢涓浕娴佺殑宄板€煎拰鍧囨柟鏍瑰€�銆傜暥(d膩ng)KRF>2涓旀瘡鍊�(g猫)闁嬮棞(gu膩n)鍛ㄦ湡鍏�(n猫i)閮藉厑瑷遍浕鎰熼浕娴佽“娓涘埌闆舵檪(sh铆)锛屾渻(hu矛)鍑虹従(xi脿n)闈為€ｇ簩(x霉)灏�(d菐o)閫氭ā寮�(DCM)(鍦�2)銆傜洿鍒颁笅涓€鍊�(g猫)闁嬮棞(gu膩n)鍛ㄦ湡闁嬪鍓�锛岄浕鎰熼浕娴佷繚鎸佺偤闆�锛屼簩妤电鍜孧OSFET閮戒笉灏�(d菐o)閫�銆傞€欎竴闈炲皫(d菐o)閫氭檪(sh铆)闁撳嵆绋辩偤tidle銆侱CM鍙彁渚涙洿浣庣殑闆绘劅鍊�锛屽苟閬垮厤杓稿嚭浜屾サ绠″弽鍚戞仮寰�(f霉)鎼嶈€椼€�

鍦�1鈥揅CM閬�(y霉n)琛�

鍦�2鈥揇CM閬�(y霉n)琛�

鐣�(d膩ng)KRF=2鏅�(sh铆)锛岃綁(zhu菐n)鎻涘櫒琚獚(r猫n)鐐鸿檿浜庤嚚鐣屽皫(d菐o)閫氭ā寮�(CrCM)鎴栭倞鐣屽皫(d菐o)閫氭ā寮�(BCM)銆傚湪閫欑ó妯″紡涓�锛岄浕鎰熼浕娴佸湪鍛ㄦ湡绲�(ji茅)鏉熸檪(sh铆)閬�(d谩)鍒伴浂锛屾濡侻OSFET鏈�(hu矛)鍦ㄤ笅涓€鍛ㄦ湡闁嬪鏅�(sh铆)灏�(d菐o)閫�銆傚皪(du矛)浜庨渶瑕佷竴瀹氳寖鍦嶈几鍏ラ浕澹�(VIN)鐨勬噳(y墨ng)鐢�锛屽浐瀹氶牷鐜囪綁(zhu菐n)鎻涘櫒閫氬父鍦ㄨō(sh猫)瑷�(j矛)涓婅兘澶犲湪鏈€澶ц矤(f霉)杓夌殑鎯呮硜涓嬪湪鎸囧畾VIN鑼冨湇鍏�(n猫i)锛屼互鎵€闇€瑕佺殑鍠竴灏�(d菐o)閫氭ā寮�(CCM鎴朌CM)宸ヤ綔銆傞毃钁楄矤(f霉)杓夋笡灏戯紝CCM杞�(zhu菐n)鎻涘櫒鏈€绲傚皣閫�(j矛n)鍏CM宸ヤ綔銆傚湪绲﹀畾VIN涓嬶紝浣垮皫(d菐o)閫氭ā寮忕櫦(f膩)鐢熻畩鍖栫殑璨�(f霉)杓夊氨鏄嚚鐣岃矤(f霉)杓�(ICRIT)銆傚湪绲﹀畾VIN涓�锛屽紩鐧�(f膩)CrCM/BCM鐨勯浕鎰熷€艰绋辩偤鑷ㄧ晫闆绘劅(LCRIT)锛岄€氬父鐧�(f膩)鐢熶簬鏈€澶ц矤(f霉)杓夌殑鎯呮硜涓嬨€�

绱嬫尝闆绘祦鑸嘨IN

鐪炬墍鍛ㄧ煡锛岀暥(d膩ng)杓稿叆闆诲鐐鸿几鍑洪浕澹�(VOUT)鐨勪竴鍗婃檪(sh铆)锛屽嵆鍗犵┖姣�(D)鐐�50%鏅�(sh铆)(鍦�3)锛屽湪閫ｇ簩(x霉)灏�(d菐o)閫氭ā寮忎笅浠ュ浐瀹氳几鍑洪浕澹撳伐浣滅殑DC-DC鍗囧杞�(zhu菐n)鎻涘櫒鐨勯浕鎰熺磱娉㈤浕娴佹渶澶у€煎氨鏈�(hu矛)鍑虹従(xi脿n)銆傞€欏彲浠ラ€氶亷鏁�(sh霉)瀛�(xu茅)鏂瑰紡渚嗚〃绀�锛屽嵆瑷�(sh猫)缃磱娉㈤浕娴佺浉灏�(du矛)浜嶥鐨勫皫(d菐o)鏁�(sh霉)(鍒囩窔鐨勬枩鐜�)绛変簬闆�锛屽苟灏�(du矛)D姹傝В銆傜啊(ji菐n)鍠捣瑕嬶紝鍋囧畾杞�(zhu菐n)鎻涘櫒鑳芥晥鐐�100%銆�

鍦�3鈥揅CM涓殑闆绘劅绱嬫尝闆绘祦

CCM宸ヤ綔

鐐轰簡閬告搰CCM鍗囧杞�(zhu菐n)鎻涘櫒鐨勯浕鎰熷€�(L)锛岄渶瑕侀伕鎿囨渶楂楰RF鍊�锛岀⒑淇濇暣鍊�(g猫)杓稿叆闆诲鑼冨湇鍏�(n猫i)閮借兘澶犱互CCM宸ヤ綔锛屽苟閬垮厤宄板€奸浕娴佸彈MOSFET銆佷簩妤电鍜岃几鍑洪浕瀹瑰奖闊�銆傜劧鍚庤▓(j矛)绠楀緱鍑烘渶灏忛浕鎰熷€�銆侹RF鏈€楂樺€奸€氬父閬稿湪0.3鍜�0.6涔嬮枔锛屼絾灏�(du矛)浜嶤CM鍙互楂橀仈(d谩)2.0銆傚鍓嶆墍杩�锛岀暥(d膩ng)D=0.5鏅�(sh铆)锛屽嚭鐝�(xi脿n)绱嬫尝闆绘祦螖IL鏈€澶у€�銆傞偅涔�锛屽灏戝崰绌烘瘮鐨勬儏娉佷笅鏈�(hu矛)鍑虹従(xi脿n)KRF鏈€澶у€煎憿?鎴戝€戝彲浠ラ€氶亷娲剧敓鏂规硶渚嗘眰寰椼€�

鍋囪ō(sh猫)畏=100%锛屽墖

(10),

鐒跺悗灏�(2)銆�(6)銆�(7)鍜�(10)浠ｅ叆(1)锛屽緱鍑�:

(11)

(12).

灏�(du矛)D姹傝В锛屽彲寰�

(13).

D=1閫欎竴鍋借В鍙蹇界暐锛屽洜?y脿n)妯楊彑璇溾偓(w臎n)鎱�(t脿i)涓嬪(sh铆)闅涗笂鏄笉鍙兘鍑虹従(xi脿n)鐨�(灏�(du矛)浜庡崌澹撹綁(zhu菐n)鎻涘櫒锛屽崰绌烘瘮蹇呴爤灏忎簬1.0)銆傚洜姝�锛岀暥(d膩ng)D=?鎴朧IN=?VOUT鏅�(sh铆)鐨勭磱娉㈠洜鏁�(sh霉)KRF鏈€楂�锛屽鍦�4鎵€绀�銆備娇鐢ㄥ悓妯ｇ殑鏂规硶閭勮兘寰楀嚭鍦ㄥ悓涓€榛�(di菐n)鐨勬渶澶у€糒MIN銆丩CRIT鍜孖CRIT銆�

鍦�4鈥撶暥(d膩ng)D=?鏅�(sh铆)CCM绱嬫尝绯绘暩(sh霉)KRF鏈€楂樺€�

灏�(du矛)浜嶤CM宸ヤ綔锛屾渶灏忛浕鎰熷€�(LMIN)鎳�(y墨ng)鍦ㄦ渶鎺ヨ繎?VOUT鐨勫(sh铆)闅涘伐浣滆几鍏ラ浕澹�(VIN(CCM))涓嬮€�(j矛n)琛岃▓(j矛)绠�銆傛牴鎿�(j霉)鎳�(y墨ng)鐢ㄧ殑鍏烽珨杓稿叆闆诲鑼冨湇锛孷IN(CCM)鍙兘鍑虹従(xi脿n)鍦ㄦ渶灏廣IN銆佹渶澶IN銆佹垨鍏堕枔鐨勬煇鍊�(g猫)浣嶇疆銆傝В鏂圭▼(5)姹侺锛屽苟鏍规摎(j霉)VIN(CCM)涓嬬殑KRF閲嶆柊瑷�(j矛)绠�锛屽彲寰楀嚭

(14)锛�

鍏朵腑VIN(CCM)鐐烘渶鎺ヨ繎?VOUT鐨勫(sh铆)闅涘伐浣淰IN銆�

灏�(du矛)浜庤嚚鐣岄浕鎰熻垏VIN鍜孖OUT鐨勮畩鍖栵紝KRF=2锛屽彲寰楀嚭

(15).

鍦ㄧ郸瀹歏IN鍜孡鍊肩殑姊濅欢涓�锛岀暥(d膩ng)KRF=2鏅�(sh铆)锛屽嵆鍑虹従(xi脿n)鑷ㄧ晫璨�(f霉)杓�(ICRIT)锛�

(16)

DCM宸ヤ綔

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鍦�5鈥揕CRIT鑸囨(bi膩o)婧�(zh菙n)鍖朧IN鐨勮畩鍖�

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杓稿叆闆诲妯″紡閭婄晫

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