鎮ㄥソ锛屾杩庝締鍒扮董搴浕瀛愬競鍫寸恫(w菐ng)
鐧婚寗 | 鍏嶈不(f猫i)娉ㄥ唺
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銆�銆�1.闆绘劅涓嶈兘鐢ㄧ楂斿お灏忕殑(鐒℃硶瀛樻噳(y墨ng)鏈夌殑鑳介噺),绶氬緫澶窗(x矛)鐨�(鑴堟矕闆绘祦澶�,鏈冩湁绶氭悕澶�).
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銆�銆�5 鐝�(xi脿n)鎴愮殑鑺墖閮芥矑鏈夐泦鎴愪笂杩伴偅涔堝ぇ闆绘祦鐨勭瀛�,鎵�浠ュ挶寤鸿鐢ㄥ湡闆昏矾灏卞?q奴)惟鍫嗙畢濞愬Θ?
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銆�銆�1.鐩″彲鑳介檷浣庨枊闂�(gu膩n)绠″皫(d菐o)閫氭檪(sh铆)鍥炶矾鐨勯樆鎶�锛屼娇闆昏兘鐩″彲鑳藉鐨勮綁(zhu菐n)鍖栫偤纾佽兘锛�
銆�銆�2.鐩″彲鑳介檷浣庤矤(f霉)杓夊洖璺殑闃绘姉锛屼娇纾佽兘鐩″彲鑳藉鐨勮綁(zhu菐n)鍖栫偤闆昏兘锛屽悓鏅�(sh铆)鍥炶矾鐨勬悕鑰�锛�
銆�銆�3.鐩″彲鑳介檷浣庢帶鍒堕浕璺殑娑堣��锛屽洜?y脿n)闁废勮暗D(zhu菐n)鎻涗締瑾�锛屾帶鍒堕浕璺殑娑堣�楁煇绋剰缇╀笂鏄氮璨�(f猫i)鎺夌殑锛屼笉鑳借綁(zhu菐n)鍖栫偤璨�(f霉)杓変笂鐨勮兘閲�銆�
銆�銆�鍏烽珨瑷�(j矛)绠�
銆�銆�宸茬煡鍙冩暩(sh霉)锛�
銆�銆�杓稿叆闆诲锛�12V --- Vi
銆�銆�杓稿嚭闆诲锛�18V ---Vo
銆�銆�杓稿嚭闆绘祦锛�1A --- Io
銆�銆�杓稿嚭绱嬫尝锛�36mV --- Vpp
銆�銆�宸ヤ綔闋荤巼锛�100KHz --- f
銆�銆�1銆佸崰绌烘瘮
銆�銆�绌�(w臎n)瀹氬伐浣滄檪(sh铆)锛屾瘡鍊�(g猫)闁嬮棞(gu膩n)鍛ㄦ湡锛屽皫(d菐o)閫氭湡闁撻浕鎰熼浕娴佺殑澧炲姞绛変簬闂�(gu膩n)鏂锋湡闁撻浕鎰熼浕娴佺殑娓涘皯锛屽嵆Vi*don/(f*L)=(Vo+Vd-Vi)*(1-don)/(f*L),鏁寸悊鍚庢湁
銆�銆�don=(Vo+Vd-Vi)/(Vo+Vd),鍙冩暩(sh霉)甯跺叆锛宒on=0.572
銆�銆�2銆侀浕鎰熼噺
銆�銆�鍏堟眰姣忓��(g猫)闁嬮棞(gu膩n)鍛ㄦ湡鍏�(n猫i)闆绘劅鍒濆闆绘祦绛変簬杓稿嚭闆绘祦鏅�(sh铆)鐨勫皪鎳�(y墨ng)闆绘劅鐨勯浕鎰熼噺
銆�銆�鍏跺�肩偤Vi*(1-don)/(f*2*Io)锛屽弮鏁�(sh霉)甯跺叆锛孡x=38.5uH,
銆�銆�deltaI=Vi*don/(L*f)锛屽弮鏁�(sh霉)甯跺叆锛宒eltaI=1.1A
銆�銆�鐣�(d膩ng)闆绘劅鐨勯浕鎰熼噺灏忎簬姝ゅ�糒x鏅�(sh铆)锛岃几鍑虹磱娉㈤毃闆绘劅閲忕殑澧炲姞璁婂寲杓冩槑椤�锛�
銆�銆�鐣�(d膩ng)闆绘劅鐨勯浕鎰熼噺澶т簬姝ゅ�糒x鏅�(sh铆)锛岃几鍑虹磱娉㈤毃闆绘劅閲忕殑澧炲姞骞句箮涓嶅啀璁婂皬锛岀敱浜庡鍔犻浕鎰熼噺鍙互娓涘皬纾佹化鎼嶈��锛屽彟澶栬�冩叜杓稿叆娉㈠嫊绛夊叾浠栨柟闈㈠奖闊垮彇L=60uH锛�
銆�銆�deltaI=Vi*don/(L*f),鍙冩暩(sh霉)甯跺叆锛宒eltaI=0.72A锛�
銆�銆�I1=Io/(1-don)-(1/2)*deltaI,I2= Io/(1-don)+(1/2)*deltaI锛�
銆�銆�鍙冩暩(sh霉)甯跺叆锛孖1=1.2A,I2=1.92A
銆�銆�3銆佽几鍑洪浕瀹癸細
銆�銆�姝や緥涓几鍑洪浕瀹归伕鎿囦綅闄剁摲闆诲锛屾晠 ESR鍙互蹇界暐
銆�銆�C=Io*don/(f*Vpp),鍙冩暩(sh霉)甯跺叆锛�
銆�銆�C=99.5uF锛�3鍊�(g猫)33uF/25V闄剁摲闆诲骞惰伅(li谩n)
銆�銆�4銆佺鐠�(hu谩n)鍙婄窔寰戯細
銆�銆�鏌ユ壘纾佺挵(hu谩n)鎵嬪唺閬告搰灏嶆噳(y墨ng)宄板�奸浕娴両2=1.92A鏅�(sh铆)纾佺挵(hu谩n)涓嶉＝鍜岀殑閬╁悎纾佺挵(hu谩n)
銆�銆�Irms^2=(1/3)*(I1^2+I2^2-I1*I2)锛屽弮鏁�(sh霉)甯跺叆锛宨rms=1.6A
銆�銆�鎸夋闆绘祦鏈夋晥鍊煎強宸ヤ綔闋荤巼閬告搰绶氬緫
銆�銆�鍏朵粬鍙冩暩(sh霉)锛�
銆�銆�闆绘劅锛歀 鍗犵┖姣旓細don
銆�銆�鍒濆闆绘祦锛欼1 宄板�奸浕娴侊細I2 绶氬湀闆绘祦锛欼rms
銆�銆�杓稿嚭闆诲锛欳 闆绘祦鐨勮畩鍖栵細deltaI 鏁存祦绠″闄嶏細Vd
缍韩闆诲瓙閫氾紝闆诲瓙鐭ヨ瓨锛屼竴鏌ョ櫨閫�锛�
宸叉敹閷勮姊�153979鍊�(g猫)
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