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闂�(gu膩n) 閸� 瀛楋細鍧囨祦鎺у埗锛沀C3902锛�

Abstract锛欼n this paper, the current sharing control principle of the high frequency electric power are introduced, some were also given the program flow control, and describes their respective advantages and disadvantages, and finally by UC3902 to realize this system are flow control.

Keywords锛欳urrent sharing control锛沀C3902锛�

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锛�3锛夊閮ㄦ帶鍒跺櫒绲�(ji茅)妲�(g貌u)鍓囬噰鐢ㄤ竴鍊嬪閮ㄦ帶鍒跺櫒鎺у埗鎵€鏈夌殑璁婃彌鍣ㄤ締瀵︾従(xi脿n)闆绘祦鍧囪　锛岀敱瀹冩瘮杓冨悇妯″鐨勮矤(f霉)杓夐浕娴佷俊铏熷苟瑾�(di脿o)鏁村悇妯″鐨勫弽楗嬩俊铏熶締鍧囪　闆绘祦銆傞€欑ó绯荤当(t菕ng)鑳藉鐛插緱寰堝ソ鐨勬€ц兘锛屼絾闇€瑕佷竴鍊嬪閮ㄦ帶鍒跺櫒鍜屽悇鍊嬫帶鍒跺櫒鍜岄浕婧愪箣闁撶殑浜掗€�銆備絾鏄敱涓€鍊嬫帶鍒跺櫒鎺у埗鎵€鏈夌殑妯″锛岀郴绲�(t菕ng)鐨勫彲闈犳€у氨鏈冮檷浣�锛屽ぇ閲忕殑鐩镐簰閫ｇ窔涔熸渻灏�(d菐o)鑷寸郴绲�(t菕ng)涓嶅畨鍏�銆備絾鏄毃钁楃従(xi脿n)浠ｇ殑鍒嗗竷寮忛浕婧愮郴绲�(t菕ng)鎶€琛�(sh霉)鐨勭櫦(f膩)灞�锛岄€欑ó鎶€琛�(sh霉)椤ず浜嗗緢澶氬劒(y艒u)鍕�锛屼娇鐢ㄤ篃瓒婁締瓒婂銆傚畠閲囩敤闆嗕腑鎺у埗锛屾湁鍒╀簬瀵︾従(xi脿n)鍕曟厠(t脿i)鑴堟矕浜ら尟浠ラ檷浣庨浕纾佸共鎿�銆佹槗瀵︾従(xi脿n)閷洠(ji膩n)娓�銆佹槗浜庡埄鐢ㄥ凡瀛樺湪鐨勭洠(ji膩n)鎺х郴绲�(t菕ng)锛岄仈鍒板緢濂界殑闆绘祦鍧囪　鍜岃几鍑洪浕澹撹(di脿o)绡€(ji茅)鎬ц兘銆�

      寰為浕娴佺殑瑕�(gu墨)鍔冧笂鍙緱鍒板緢澶氱殑鍧囨祦鏂规硶銆傞浕娴佽(gu墨)鍔冪瓥鐣ユ槸鍕曟厠(t脿i)闆绘祦鍧囪　绛栫暐鐨勪竴鍊嬮噸瑕佺挵(hu谩n)绡€(ji茅)锛屽畠鐨勪綔鐢ㄦ槸鍗�(xi茅)瑾�(di脿o)鍚勫€嬪苟鑱�(li谩n)璁婃彌鍣ㄧ殑闆诲瑾�(di脿o)绡€(ji茅)鍣紝鐛插緱姣忓€嬫ā濉婄殑闆绘祦鍧囪　瑾ゅ樊骞堕€氶亷瑾ゅ樊鏀惧ぇ鍣ㄥ弽楗嬬郸闆诲瑾�(di脿o)绡€(ji茅)鍣�锛岀洰鍓嶆甯哥敤鐨勪富瑕佹湁鍏╅锛氬钩鍧囬浕娴佽(gu墨)鍔冪瓥鐣ュ拰涓诲緸闆绘祦瑕�(gu墨)鍔冪瓥鐣�銆�

1)        骞冲潎闆绘祦瑕�(gu墨)鍔冪瓥鐣� 

      骞冲潎闆绘祦瑕�(gu墨)鍔冪瓥鐣ョ敱鍚勫€嬫ā濉婇浕娴佺附鍜岀稉(j墨ng)鍔犳瑠(qu谩n)鐛插緱鍚勬ā濉婄殑鍙冭€冮浕娴佸€�锛岃垏鍙嶉闆绘祦鐩告瘮杓冪嵅寰楅浕娴佽宸紝鍐嶉€氶亷瑾ゅ樊鏀惧ぇ鍣ㄥ弽楗嬬郸鍚勬ā濉婄殑闆诲瑾�(di脿o)绡€(ji茅)鍣�锛屽悇妯″瑾�(di脿o)绡€(ji茅)鑷韩杓稿嚭闆诲浠ヤ繚鎸佸湪杓稿嚭绺介浕娴佹墍鍗犳瘮閲嶃€�

灏辩洰鍓嶆瘮杓冩垚鐔熺殑鎶€琛�(sh霉)锛岃嚜鍕曞潎娴佸钩鍧囬浕娴佹硶鎳�(y墨ng)鐢ㄦ瘮杓冨唬娉涖€傚悇鍊嬫ā濉婄殑鍏�(n猫i)閮ㄥ潎娴佸師鐞嗗鍦�3鎵€绀�銆傞浕闃籖涓婄殑澹撻檷浠ｈ〃瑭叉ā濉婂潎娴佽宸浕澹�銆傞€氶亷姝よ宸俊铏熻(di脿o)绡€(ji茅)杓稿嚭浣垮緱瑭叉ā濉婄殑杓稿嚭绔殑绛夋晥鐩存祦闆诲嫝娓涘皯锛屼娇寰楄几鍑洪浕娴佸悜瑷堢畻鐨勫钩鍧囬浕娴侀潬杩�锛岃捣鍒板潎娴佷綔鐢ㄣ€傚畠鐨勭己榛炴槸鏄庨’鐨�銆備换浣曟ā濉婃晠闅滄垨鑰呭潎娴佹瘝绶氱煭璺兘鏈冧娇寰楃郴绲�(t菕ng)涓嶈兘绌�(w臎n)瀹氬伐浣�锛岃€屼笖鐣�(d膩ng)鏌愮ó妯″杓稿嚭鍒伴仈妤甸檺鍊兼檪锛屽叾浠栨ā濉婅几鍑洪浕澹撴渻涓嬮檷鍒版サ闄�銆�

鍦�3骞冲潎闆绘祦鎺у埗娉曞潎娴佹帶鍒跺師鐞�

2)        涓诲緸鍧囨祦绛栫暐 

      涓诲緸闆绘祦瑕�(gu墨)鍔冪瓥鐣ョ敱閬稿畾涓绘ā濉婄殑闆绘祦淇¤櫉浣滅偤鎵€鏈夋ā濉婄殑鍙冭€冮浕娴佸€�锛屽拰鍙嶉闆绘祦鐩告瘮杓冪嵅寰楅浕娴佽宸�锛岀敱姝よ(di脿o)绡€(ji茅)鍏朵粬涓诲緸妯″鑷韩杓稿嚭闆诲浠ヤ繚鎸佸叾鍦ㄨ几鍑虹附闆绘祦鎵€鍗犳瘮閲�銆傜己榛炴槸涓绘ā濉婄殑鏁呴殰鏈冧娇鏁村€嬬郴绲�(t菕ng)鐧辩槗锛岀劇鍐椾綑鎬ц兘锛涘悇妯″楂橀牷甯剁挵(hu谩n)琚€ｆ帴鍦ㄤ竴璧�锛岀郸绯荤当(t菕ng)甯朵締寰堝ぇ鍣伈骞叉摼銆�

閫欎竴椤炵殑绛栫暐涓昏鏈夛細鍒跺畾涓绘ā濉婃硶,杓祦涓绘ā濉婃硶,鑷嫊涓绘ā濉婃硶銆傚湒4鎻忚堪浜嗚嚜涓诲潎娴佺殑绨¤鍘熺悊銆傞€氶亷鍠悜绶╂矕闆昏矾瀵︾従(xi脿n)杓稿嚭闆绘祦鏈€澶х殑妯″鎺у埗鍧囨祦姣嶇窔闆诲锛屽彲浠ュ鐝�(xi脿n)涓绘ā濉婄殑鑷嫊閬告搰锛屽皪鏁呴殰妯″鑷嫊闅旈洟锛屽鐝�(xi脿n)绯荤当(t菕ng)鍐椾綑鍜岀啽鎻掓嫈锛屾瘝绶氶枊璺垨鐭矾閮戒笉褰遍熆鍚勬ā濉婄崹绔嬪伐浣�锛屾彁楂樼郴绲�(t菕ng)鐨勫彲闈犳€�銆�

鍦�4 浣庡樊鑷嫊涓诲緸鍧囨祦鎺у埗鍘熺悊绨″湒

      鍩轰簬浠ヤ笂鐨勫垎鏋�锛屼笅闄嶆硶鐨勫潎娴佺簿搴︽瘮杓冧綆锛屽钩鍧囬浕娴佹硶鐒℃硶瀵︾従(xi脿n)鍐椾綑鎶€琛�(sh霉)锛屽洜鑰屽苟鑱�(li谩n)闆绘簮绯荤当(t菕ng)鐨勫彲闈犳€у緱涓嶅埌淇濊瓑锛屽鍔犳帶鍒跺櫒娉曚娇寰楃郴绲�(t菕ng)璁婂緱鐩哥暥(d膩ng)寰�(f霉)闆�锛屼笉鍒╀簬鎶€琛�(sh霉)鐨勮綁(zhu菐n)鍖栥€傚嫊鎱�(t脿i)鍧囨祦涓笁鐠�(hu谩n)鎺у埗鑸囬浕娴佽(gu墨)鍔冪浉绲�(ji茅)鍚�锛屽彲浠ュ緱鍒板緢澶氬潎娴佺簿搴﹁純楂樼殑鎺у埗鏂规硶锛屽湪瑕佹眰杓冮珮鐨勭郴绲�(t菕ng)涓�锛屽嫊鎱�(t脿i)鍧囨祦瓒婁締瓒婅寤ｆ硾鐨勬噳(y墨ng)鐢�锛屽挨鍏舵槸涓诲緸鎺у埗娉曘€�

      鐩墠Unitrode鍏徃鐢熺敘(ch菐n)鐨刄C3902銆乁C3907鐨勫潎娴佹帶鍒惰姱鐗囨槸鐞嗘兂鐨勩€傛湰鏂囬噰鐢║C3902瑷�(sh猫)瑷堜簡闆绘簮鐨勫潎娴佹帶鍒堕浕璺�銆俇C3902璨�(f霉)杓夊潎娴侀泦鎴愭帶鍒跺櫒鏄竴绋兘鐐哄鑷虹崹绔嬮浕婧愬苟鑱�(li谩n)锛屽鐝�(xi脿n)绮剧⒑鍧囧垎绯荤当(t菕ng)绺介浕娴佸姛鑳界殑鍠墖鍧囨祦鎺у埗闆嗘垚闆昏矾銆�

UC3902鏈韩鍗虫槸鏍规摎(j霉)鑷富鍧囨祦鐨勫師鐞嗕締瑷�(sh猫)瑷堢殑锛屾墍浠ュ畠闆嗘垚浜嗗潎娴佽鍎熼浕璺�锛屽畠鐨勫鍦嶅彧闇€瑕佸皬閲忕殑鐒℃簮鍣ㄤ欢锛屽叾鍏�(n猫i)閮ㄧ祼(ji茅)妲�(g貌u)妗嗗湒浠ュ強澶栧湇鍙冩暩(sh霉)鐨勯€ｆ帴濡傚湒5銆�

      鍙冩暩(sh霉)瑷�(sh猫)缃墠锛屽繀闋堜簡瑙ｉ瀹氳几鍑洪浕澹�銆佹渶澶ц几鍑洪浕娴�鍜岄浕澹撴渶澶у厑瑷辫(di脿o)绡€(ji茅)鑼冨湇銆�

      灏嶄簬姣嶇窔闆诲鐨勯伕鎿囪缍滃悎鑰冩叜灏嶅櫔鑱茬殑鏁忔劅搴�銆佸潎娴佸害銆佷互鍙婂苟鑱�(li谩n)妯″鐨勫€嬫暩(sh霉)銆傚洜鐐哄闅涘潎娴佹瘝绶氬彧鐢变富妯″椹�(q奴)鍕曪紝姣忓€嬪緸妯″鍦ㄦ瘝绶氫笂浠ｈ〃10k惟鐨勯浕闃�锛屽氨鏄瘡澧炲姞涓€鍊嬫ā濉婂皣鏈冨鍔犱富妯″100uA鐨勪緵闆婚浕娴�銆傜偤鎻愰珮鍧囨祦绮惧害锛屾娓浕闃昏閲囩敤楂樼簿搴︾殑闆婚樆锛� (闆绘祦妾㈡脯鏀惧ぇ鍣ㄦ渶楂樿几鍑洪浕澹�锛屽畠鏄�10V鑸�涓純灏忕殑涓€鍊�)閬哥敤6V,闆绘祦妾㈡脯鏀惧ぇ鍣ㄥ鐩婄偤40锛屾ā濉婃渶澶ц几鍑洪浕娴�40A銆傚洜姝わ細

RSENSE=6/(40脳40)=0.00357惟                1)

鍦�5 UC3902鍏�(n猫i)閮ㄧ祼(ji茅)妲�(g貌u)妗嗗湒

鍗宠(di脿o)鏁存斁澶у櫒鐨勬渶澶ч浕娴�,瀹冪殑鍊间繚鎸佸湪锛屽洜鐐鸿純浣庝竴榛炲彲鑳芥渻寮曡捣绯荤当(t菕ng)灏嶅櫔鑱茬殑鏁忔劅銆傚畠鐨勫闅涢浕娴佺敱ADJR绠¤叧闆诲锛�2.6V锛夊拰鑸囦箣閫ｆ帴闆婚樆姹哄畾銆�

                2)

瀵﹂殯鍙�銆�

鐨勯伕鎿囨噳(y墨ng)瑭茬洝閲忔笡灏�锛屽吀鍨嬪€煎湪20-120涔嬮枔锛屼互纰轰繚涓嶅奖闊胯畩鎻涘櫒姝ｅ父闆诲鍙嶉锛岄伕鍙�

     3)

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              4)

寮忎腑鈥斿潎娴佺挵(hu谩n)璺宸斁澶у櫒鐨勮法灏�(d菐o)锛岄€氬父鐐�4.5ms

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