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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 | 鍏嶈不娉ㄥ唺

鍥炴巸璁婂鍣�
闁辫畝锛�7819鏅傞枔锛�2010-09-08 16:45:20

鍥炴巸璁婂鍣�鍙堟垚鐐哄弽婵�璁婂鍣�锛屾槸鍔犲叆浜嗗弽婵�闆昏矾锛屽緸鑰屼娇杓稿叆闆诲鍜岃矤杓夎寖鍦嶆摯澶х殑璁婂鍣�銆�

鐗归粸

銆�銆�鍥炴巸璁婂鍣ㄥ叿鏈夋垚鏈綆銆佽ō(sh猫)瑷堢啊鍠�銆佹晥鐜囬珮绛夌壒榛烇紝寤ｆ硾鎳�(y墨ng)鐢ㄤ簬100W浠ヤ笅鑷�150W闆绘簮銆傝垏鍏跺畠鍏锋湁椤炰技鎷撴ǜ绲�(ji茅)妲�(g貌u)鐨勯浕璺浉姣旓紝鍥炴巸璁婂鍣ㄩ倓鍏锋湁闅旈洟涓诲壇绱氱殑鐗归粸锛屽苟鍙彁渚涘杓稿嚭锛屼互鍙婄偤杓稿嚭閬告搰姝ｈ矤闆诲銆�

鍙冩暩(sh霉)

涓嬪垪鏂圭▼甯哥敤浜庣⒑瀹氬洖鎺冭畩澹撳櫒锛岄毃鍗崇敤涓�鍊嬪吀鍨嬬殑瑷�(sh猫)瑷堢ず渚嬭В閲嬪浣曚娇鐢ㄩ�欎簺鏂圭▼銆�

銆�銆�浠= L dj/dt,Vin,min = (LpIppf)/(蟽max)

銆�銆�鍏朵腑锛孷in = 杓稿叆闆诲, V

銆�銆�Lp = 鍒濈礆绶氬湀闆绘劅, mH

銆�銆�Ipp = 宄板�奸浕娴�, A

銆�銆�蟽max = 鍗犵┖姣�, 渭s

銆�銆�f = 闁嬮棞(gu膩n)闋荤巼, kHz

銆�銆�灏嶉枔鏂锋ā寮忚�岃█锛�

銆�銆�闆绘簮杓稿嚭 = 1/2*Lp*Ipp*f

銆�銆�Ipp = (2Pout)/(Vin,min* 蟽max)

銆�銆�濡備笂鎵�杩帮紝鍥炴巸璁婂鍣ㄧ殑瑾�(di脿o)绡�(ji茅)鏄�氶亷PWM瀹屾垚鐨�銆傚鏋滆畩澹撳櫒Vin闆诲寰濾in,min澧炲ぇ鍒癡in,max锛岄偅涔�

銆�銆�蟽min = (蟽max) / ((1- 蟽max)C + 蟽max)

銆�銆�閫欓噷C = Vin,max / Vin,min

銆�銆�鐢变簬Ipp鏄凡鐭ョ殑锛�

銆�銆�Lp = (Vin,min* 蟽max) / (Ipp*f)

銆�銆�鐩＄瑷�(sh猫)瑷堣�呴渶瑕佷緷闈犻伕鎿囬惖蹇冩潗鏂欑殑缍�(j墨ng)椹楋紝閫欏儏鏈冩彁渚涜繎浼肩祼(ji茅)鏋�銆備笅鍒楀叕寮忓彲鎻愰珮浼拌▓绲�(ji茅)鏋�銆�

銆�銆�Ac*Ae = (((6.33*4)*Lp*Ipp*D)*10~8) / Bmax.

銆�銆�閫欓噷Ac = 绶氬湀闈㈢⿳ cm

銆�銆�Ae = 閻靛績鏈夋晥闈㈢⿳, cm

銆�銆�Bmax = Bsat/2, Gauss. 鍙悜閻靛績鍒堕�犲晢鍜ㄨ鏈夐棞(gu膩n)鏉愭枡銆佹悕鑰�-闋荤巼绛変俊鎭�銆�

銆�銆�D = 灏�(d菐o)绶氱洿寰�, 鑻卞

銆�銆�鐢变簬鍥炴巸璁婂鍣ㄩ噰鐢ㄥ柈绔厤缃�锛屽儏浣跨敤涓�鍗婇�氶噺閰嶇疆锛屾墍浠ュ繀闋堢偤鍥炴巸璁婂鍣ㄨ▓绠楃┖姘ｉ枔闅欍�傞�欐ǎ鏈冨皫(d菐o)鑷撮惖蹇冮＝鍜�銆�

銆�銆�Gap (cm) = lg = ((0.4*螤*Lp*Ipp)*108) / (Ae*Bmax)

銆�銆�鐣�(d膩ng)绌烘埃闁撻殭闀峰害纰哄畾鍚�锛屼富绱氬拰娆＄礆绶氬湀鐨勫湀鏁�(sh霉)涔熷彲浠ョ⒑瀹�銆�

銆�銆�Npri = (Bmax*lg) / (.4*螤*Ipp)

銆�銆�Nsec = (Np(Vp + Vd) (1-蟽max)) / (Vin,min* 蟽max)

銆�銆�涓嬮潰鐨勭ず渚嬫槸浠嬬垂濡備綍瑷�(sh猫)瑷堥枔鏂锋ā寮忕殑鍥炴巸璁婂鍣ㄣ�傜従(xi脿n)浠ｈō(sh猫)瑷堝埄鐢≒FC (鍔熺巼鍥犲瓙鏍℃)锛屽湪鏁存祦鍚庣珛鍗冲畾浣�銆傞�氬父閲囩敤鎻愬崌鎷撴ǜ鐢ㄤ簬鍕曟厠(t脿i)鐗规�у拰杓稿叆闆诲鑼冨湇銆傛湰绀轰緥涓嶆秹鍙奝FC銆�

銆�銆�瑷�(sh猫)瑷堝弮鏁�(sh霉)

銆�銆�Vinput = 85鑷�132 VAC

銆�銆�Voutput = 5VDC @ 10A = 50鐡�

銆�銆�闋荤巼 = 100kHz

銆�銆�鍋囪ō(sh猫) 蟽max = .45

瀹氱京

銆�銆�鍥炴巸鏄竴绋浕璺殑鏋舵(g貌u)鏂瑰紡锛屽張鍙弽婵�?锛涜矡鍜﹀剶娴╅瑜彄?y墨ng)鐢ㄤ簡鍥炴巸闆昏矾鐨勮畩澹撳櫒銆�

鍘熺悊

銆�銆�鐣�(d膩ng)闁嬮棞(gu膩n)鎵撻枊鏅�锛岃兘閲忛兘瀛樺劜鍦ㄤ富绱�(鍦ㄩ惖蹇冩潗鏂�)鍏�(n猫i)銆傚鍦�1鎵�绀�锛屼簩妤电鍜岃畩澹撳櫒鐨勬サ榛炴斁缃殑浣嶇疆鏄偤浜嗕娇闁嬮棞(gu膩n)鎵撻枊鏅�锛岃兘閲忎笉鏈冨偝杓�?sh霉)鎴挦d绔�銆傜暥(d膩ng)闁嬮棞(gu膩n)闁夊悎鍚�锛屽洜鐐虹鍫存秷澶�锛屽墖璁婂鍣ㄧ窔鍦堢殑妤垫�у弽杞�(zhu菐n)锛岃几鍑烘暣娴佸櫒灏�(d菐o)閫�锛屽瓨鍎插湪閻靛績鏉愭枡鍏�(n猫i)鐨勮兘閲忔渻鍌宠几?sh霉)鎴挦d涓�銆傞�欑ó閬庣▼鏈冧竴鐩存寔绾�(x霉)鐩村埌鑳介噺鑰楃洝鎴栭枊闂�(gu膩n)鍐嶆鎵撻枊銆�

 

銆�銆�鍦�1.

鍏稿瀷鍥炴巸璁婂鍣ㄩ浕璺�

銆�銆�

      鍥炴巸瑾�(di脿o)绡�(ji茅)鍣ㄥ湪闁撴柗鎴栭�ｇ簩(x霉)妯″紡涓嬮兘鍙亱琛�銆傚伐浣滃湪闁撴柗妯″紡鏅�(瑕嬪湒2)锛岀暥(d膩ng)FET闁嬪暉鎴栭棞(gu膩n)闁�锛岄惖蹇冩潗鏂欏収(n猫i)瀛樺劜鐨勮兘閲忔渻鍦ㄥ洖鎺冩湡闁撳畬鍏ㄨ�楃洝銆傚伐浣滃湪閫ｇ簩(x霉)妯″紡鏅�锛�(鍙冭鍦�3)FET鏈冨湪閻靛績鏉愭枡鑰楃洝鍥炴巸鑳介噺涔嬪墠闁嬪暉?锛涜矡鍜﹀剶娴╅灟鏈ㄥ敡w宸ヤ綔妯″紡鑸囪矤杓夊拰杓稿叆闆诲鐩搁棞(gu膩n)銆�

闁撴柗妯″紡涓嬬殑鍥炴巸璁婂鍣�

銆�銆�鍦�2.

銆�銆�瑷�(sh猫)瑷堣�呴渶瑕佽�冩叜鍒颁綆澹撲笅鐨勮矤杓�锛屽叾涓寘鎷洖鎺冨伐浣滆寖鍦嶇殑鎵�鏈夋浠�锛岄�欐槸鍥犵偤璁婂鍣ㄦ渻鍦ㄤ笉鍚屽懆鏈熶箣闁撻棞(gu膩n)闁�(闁撴柗妯″紡)锛屽苟绛夊緟璨犺級婊胯冻鍔熺巼鍌抽仦鐨勫閲�銆傞�欐槸鍥炴巸鏈�涓昏鐨勭壒榛烇紝杓稿叆闆诲鍜岃矤杓夌殑瑾�(di脿o)绡�(ji茅)鑼冨湇澶�銆�

閫ｇ簩(x霉)妯″紡涓嬬殑鍥炴巸璁婂鍣�

銆�銆�鍦�3.

鍥炴巸璁婂鍣ㄧ浉闂�(gu膩n)璩囪▕ 鏇村>>

缍韩闆诲瓙閫�锛岄浕瀛愮煡璀�锛屼竴鏌ョ櫨閫�锛�

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