涓€銆�姝ラ€�(j矛n)闆绘(j墨)鍜岃埖姗�(j墨)鍙婁己鏈嶉浕姗�(j墨)鐨勫崁(q奴)鍒�

姝ラ€�(j矛n)闆绘(j墨)锛氭槸灏囬浕鑴堟矕淇¤櫉(h脿o)杞�(zhu菐n)璁�?y艒u)姒讳繌鐏拌嫻铓撯偓浣嶇Щ鐨勯枊(k膩i)鐠�(hu谩n)鎺у埗鍏冩閫�(j矛n)闆绘(j墨)浠�銆傜啊(ji菐n)鍠殑瑾�(shu艒)鏄潬闆昏剤娌栦俊铏�(h脿o)渚�(l谩i)鎺у埗瑙掑害鑸囪綁(zhu菐n)鍕�(d貌ng)鍦堟暩(sh霉)銆傛墍浠ヨ(shu艒)浠栧彧闈犺剤娌栦俊铏�(h脿o)渚�(l谩i)姹哄畾杞�(zhu菐n)鍕�(d貌ng)澶氬皯銆傚洜娌�(m茅i)鏈夊偝鎰熷櫒锛屾墍浠ュ仠姝㈣搴︽渻(hu矛)鏈夊亸宸€備絾鏄簿纰虹殑鑴堟矕淇¤櫉(h脿o)鍓囨渻(hu矛)灏囧亸宸笡鑷虫渶浣�銆�

浼烘湇闆绘(j墨)锛氶潬浼烘湇鎺у埗闆昏矾渚�(l谩i)鎺у埗闆绘(j墨)鐨勮綁(zhu菐n)閫�锛岄€氶亷(gu貌)鍌虫劅鍣ㄤ締(l谩i)鎺у埗杞�(zhu菐n)鍕�(d貌ng)浣嶇疆銆傛墍浠ヤ綅缃帶鍒跺崄鍒嗙簿纰�銆傝€岃綁(zhu菐n)閫熶篃鏄彲璁婄殑銆�

鑸垫(j墨)锛堥浕瀛愯埖姗�(j墨)锛夛細鑸垫(j墨)鐨勪富瑕佺祫鎴愰儴鍒嗙偤浼烘湇闆绘(j墨)銆傚叾涓寘鍚己鏈嶉浕姗�(j墨)鎺у埗闆昏矾+娓涢€熼綊杓祫銆傚摝锛屽皪(du矛)浜�锛屼己鏈嶉浕姗�(j墨)娌�(m茅i)鏈夋笡閫熼綊杓祫銆傝€岃埖姗�(j墨)鏈夋笡閫熼綊杓祫銆�

濡傛灉鏄檺浣嶈埖姗�(j墨)锛岄潬杓稿嚭杌镐笅闈㈢殑闆讳綅鍣ㄤ締(l谩i)纰哄畾鑸佃噦杞�(zhu菐n)鍚戣搴�銆傝埖姗�(j墨)淇¤櫉(h脿o)鎺у埗鏄竴绋剤瀵(di脿o)鍒讹紙PWM锛変俊铏�(h脿o)锛屽嚒鏄井鎺у埗鍣ㄨ兘杓曟澗鐨勭敘(ch菐n)鐢熼€欑ó淇¤櫉(h脿o)銆�

浜�銆�姝ラ€�(j矛n)闆绘(j墨)鍩烘湰鍘熺悊

宸ヤ綔鍘熺悊锛�

閫氬父闆绘(j墨)鐨勮綁(zhu菐n)瀛愮偤姘哥楂旓紝鐣�(d膩ng)闆绘祦娴侀亷(gu貌)瀹氬瓙绻炵祫鏅�(sh铆)锛屽畾瀛愮篂绲勭敘(ch菐n)鐢熶竴鐭㈤噺纾佸牬(ch菐ng)銆傝┎纾佸牬(ch菐ng)鏈�(hu矛)甯跺嫊(d貌ng)杞�(zhu菐n)瀛愭棆杞�(zhu菐n)涓€瑙掑害锛屼娇寰楄綁(zhu菐n)瀛愮殑涓€灏�(du矛)纾佸牬(ch菐ng)鏂瑰悜鑸囧畾瀛愮殑纾佸牬(ch菐ng)鏂瑰悜涓€鑷�銆傜暥(d膩ng)瀹氬瓙鐨勭煝閲忕鍫�(ch菐ng)鏃嬭綁(zhu菐n)涓€鍊�(g猫)瑙掑害銆傝綁(zhu菐n)瀛愪篃闅ㄨ憲瑭茬鍫�(ch菐ng)杞�(zhu菐n)涓€鍊�(g猫)瑙掑害銆傛瘡杓稿叆涓€鍊�(g猫)闆昏剤娌�锛岄浕鍕�(d貌ng)姗�(j墨)杞�(zhu菐n)鍕�(d貌ng)涓€鍊�(g猫)瑙掑害鍓嶉€�(j矛n)涓€姝ャ€傚畠杓稿嚭鐨勮浣嶇Щ鑸囪几鍏ョ殑鑴堟矕鏁�(sh霉)鎴愭姣�銆佽綁(zhu菐n)閫熻垏鑴堟矕闋荤巼鎴愭姣�銆傛敼璁婄篂绲勯€氶浕鐨勯爢搴�锛岄浕姗�(j墨)灏辨渻(hu矛)鍙嶈綁(zhu菐n)銆傛墍浠ュ彲鐢ㄦ帶鍒惰剤娌栨暩(sh霉)閲忋€侀牷鐜囧強闆诲嫊(d貌ng)姗�(j墨)鍚勭浉绻炵祫鐨勯€氶浕闋嗗簭渚�(l谩i)鎺у埗姝ラ€�(j矛n)闆绘(j墨)鐨勮綁(zhu菐n)鍕�(d貌ng)銆�

鐧�(f膩)鐔卞師鐞嗭細

閫氬父瑕�(ji脿n)鍒扮殑鍚勯(l猫i)闆绘(j墨)锛屽収(n猫i)閮ㄩ兘鏄湁閻佃姱鍜岀篂绲勭窔鍦堢殑銆傜篂绲勬湁闆婚樆锛岄€氶浕鏈�(hu矛)鐢�(ch菐n)鐢熸悕鑰�锛屾悕鑰楀ぇ灏忚垏闆婚樆鍜岄浕娴佺殑骞虫柟鎴愭姣�锛岄€欏氨鏄垜鍊戝父瑾�(shu艒)鐨勯妳鎼嶏紝濡傛灉闆绘祦涓嶆槸妯�(bi膩o)婧�(zh菙n)鐨勭洿娴佹垨姝ｅ鸡娉�锛岄倓鏈�(hu矛)鐢�(ch菐n)鐢熻娉㈡悕鑰�锛涢惖蹇冩湁纾佹化娓︽祦鏁堟噳(y墨ng)锛屽湪浜よ畩纾佸牬(ch菐ng)涓篃鏈�(hu矛)鐢�(ch菐n)鐢熸悕鑰�锛屽叾澶у皬鑸囨潗鏂欙紝闆绘祦锛岄牷鐜�锛岄浕澹撴湁闂�(gu膩n)锛岄€欏彨閻垫悕銆傞妳鎼嶅拰閻垫悕閮芥渻(hu矛)浠ョ櫦(f膩)鐔辩殑褰㈠紡琛ㄧ従(xi脿n)鍑轰締(l谩i)锛屽緸鑰屽奖闊块浕姗�(j墨)鐨勬晥鐜�銆傛閫�(j矛n)闆绘(j墨)涓€鑸拷姹傚畾浣嶇簿搴﹀拰鍔涚煩杓稿嚭锛屾晥鐜囨瘮杓冧綆锛岄浕娴佷竴鑸瘮杓冨ぇ锛屼笖璜ф尝鎴愬垎楂�锛岄浕娴佷氦璁婄殑闋荤巼涔熼毃杞�(zhu菐n)閫熻€岃畩鍖�锛屽洜鑰屾閫�(j矛n)闆绘(j墨)鏅亶瀛樺湪鐧�(f膩)鐔辨儏娉�锛屼笖鎯呮硜姣斾竴鑸氦娴侀浕姗�(j墨)鍤�(y谩n)閲�銆�

涓�銆佽埖姗�(j墨)鐨勬(g貌u)閫�

鑸垫(j墨)涓昏鏄敱澶栨銆侀浕璺澘銆侀﹨(q奴)鍕�(d貌ng)棣仈(d谩)銆佹笡閫熷櫒鑸囦綅缃娓�(c猫)鍏冧欢鎵€妲�(g貌u)鎴�銆傚叾宸ヤ綔鍘熺悊鏄敱鎺ユ敹姗�(j墨)鐧�(f膩)鍑鸿▕铏�(h脿o)绲﹁埖姗�(j墨)锛岀稉(j墨ng)鐢遍浕璺澘涓婄殑IC椹�(q奴)鍕�(d貌ng)鐒�(w煤)鏍稿績棣仈(d谩)闁�(k膩i)濮嬭綁(zhu菐n)鍕�(d貌ng)锛岄€忛亷(gu貌)娓涢€熼綊杓皣鍕�(d貌ng)鍔涘偝鑷虫摵鑷�锛屽悓鏅�(sh铆)鐢变綅缃娓�(c猫)鍣ㄩ€佸洖瑷婅櫉(h脿o)锛屽垽鏂锋槸鍚﹀凡缍�(j墨ng)鍒伴仈(d谩)瀹氫綅銆備綅缃娓�(c猫)鍣ㄥ叾瀵�(sh铆)灏辨槸鍙畩闆婚樆锛岀暥(d膩ng)鑸垫(j墨)杞�(zhu菐n)鍕�(d貌ng)鏅�(sh铆)闆婚樆鍊间篃鏈�(hu矛)闅ㄤ箣鏀硅畩锛岃棄鐢辨娓�(c猫)闆婚樆鍊间究鍙煡杞�(zhu菐n)鍕�(d貌ng)鐨勮搴︺€備竴鑸殑浼烘湇棣仈(d谩)鏄皣绱�(x矛)閵呯窔绾忕篂鍦ㄤ笁妤佃綁(zhu菐n)瀛愪笂锛岀暥(d膩ng)闆绘祦娴佺稉(j墨ng)绶氬湀鏅�(sh铆)渚挎渻(hu矛)鐢�(ch菐n)鐢熺鍫�(ch菐ng)锛岃垏杞�(zhu菐n)瀛愬鍦嶇殑纾侀惖鐢�(ch菐n)鐢熸帓鏂ヤ綔鐢紝閫�(j矛n)鑰岀敘(ch菐n)鐢熻綁(zhu菐n)鍕�(d貌ng)鐨勪綔鐢ㄥ姏銆備緷鎿�(j霉)鐗╃悊瀛�(xu茅)鍘熺悊锛岀墿楂旂殑杞�(zhu菐n)鍕�(d貌ng)鎱ｉ噺鑸囪唱(zh矛)閲忔垚姝ｆ瘮锛屽洜姝よ杞�(zhu菐n)鍕�(d貌ng)璩�(zh矛)閲忔剤澶х殑鐗╅珨锛屾墍闇€鐨勪綔鐢ㄥ姏涔熸剤澶�銆傝埖姗�(j墨)鐐烘眰杞�(zhu菐n)閫熷揩銆佽€楅浕灏�锛屼簬鏄皣绱�(x矛)閵呯窔绾忕篂鎴愭サ钖勭殑涓┖?q菒ng)A鏌遍珨锛屽舰鎴愪竴鍊�(g猫)閲嶉噺妤佃紩鐨勭劇(w煤)妤典腑绌鸿綁(zhu菐n)瀛�锛屽苟灏囩閻电疆鏂煎湏鏌遍珨鍏�(n猫i)锛岄€欏氨鏄┖蹇冩澂棣仈(d谩)銆�

鐐轰簡閬╁悎涓嶅悓鐨勫伐浣滅挵(hu谩n)澧�锛屾湁闃叉按鍙婇槻濉佃ō(sh猫)瑷�(j矛)鐨勮埖姗�(j墨)锛涘苟涓斿洜鎳�(y墨ng)涓嶅悓鐨勮矤(f霉)杓夐渶姹�锛岃埖姗�(j墨)鐨勯綊杓湁濉戣啝鍙婇噾灞箣鍗€(q奴)鍒�锛岄噾灞綊杓殑鑸垫(j墨)涓€鑸殕鐐哄ぇ鎵姏鍙婇珮閫熷瀷锛屽叿鏈夐綊杓笉鏈�(hu矛)鍥犺矤(f霉)杓夐亷(gu貌)澶ц€屽穿鐗欑殑鍎�(y艒u)榛�(di菐n)銆傝純楂樼礆(j铆)鐨勮埖姗�(j墨)鏈�(hu矛)瑁濈疆婊剧彔杌告壙锛屼娇寰楄綁(zhu菐n)鍕�(d貌ng)鏅�(sh铆)鑳芥洿杓曞揩绮炬簴(zh菙n)銆傛痪鐝犺桓鎵挎湁涓€椤嗗強浜岄鐨勫崁(q奴)鍒�锛岀暥(d膩ng)鐒舵槸浜岄鐨勬瘮杓冨ソ銆傜洰鍓嶆柊鎺ㄥ嚭鐨凢ET鑸垫(j墨)锛屼富瑕佹槸閲囩敤FET锛團ieldEffectTransistor锛夊牬(ch菐ng)鏁堥浕鏅堕珨銆侳ET鍏锋湁鍏�(n猫i)闃讳綆鐨勫劒(y艒u)榛�(di菐n)锛屽洜姝ら浕娴佹悕鑰楁瘮涓€鑸浕鏅堕珨灏�銆�

鍥�銆佽埖姗�(j墨)宸ヤ綔鍘熺悊

鐢眕wm娉㈤€�(j矛n)鍏ュ収(n猫i)閮ㄩ浕璺敘(ch菐n)鐢熶竴鍊�(g猫)鍋忕疆闆诲锛岃Ц鐧�(f膩)闆绘(j墨)閫氶亷(gu貌)娓涢€熼綊杓付鍕�(d貌ng)闆讳綅鍣ㄧЩ鍕�(d貌ng)锛屼娇闆诲宸偤闆舵檪(sh铆)锛岄浕姗�(j墨)鍋滆綁(zhu菐n)锛屽緸鑰岄仈(d谩)鍒颁己鏈嶇殑鏁堟灉銆�

鑸垫(j墨)PWM鐨勫崝(xi茅)璀伴兘鏄浉鍚岀殑锛屼絾鏈€鏂板嚭鐝�(xi脿n)鐨勮埖姗�(j墨)鍙兘涓嶄竴妯�

鍗�(xi茅)璀颁竴鑸偤锛氶珮闆诲钩瀵害鍦�0.5ms~2.5ms鎺у埗鑸垫(j墨)杞�(zhu菐n)閬�(gu貌)涓嶅悓鐨勮搴�

渚嬪鏌愪竴鍨嬭櫉(h脿o)濡備笅锛�

灏�(du矛)浜庝笉鍚岀殑鍨嬭櫉(h脿o)鍙互鏌ユ壘鐩搁棞(gu膩n)鐨勮埖姗�(j墨)鏂囨獢

鍒嗘瀽锛�

鍦ㄦ浠ュ伐浣滈牷鐜囩偤50HZ锛屽嵆鍛ㄦ湡鐐�20MS鐨刦utabas3003鑸垫(j墨)锛屽拰51鍠墖姗�(j墨)鐐轰富鎺ц姱鐗囬€�(j矛n)琛岃┏绱�(x矛)绋嬪簭绶ㄥ(xi臎)鍒嗘瀽锛�

鏈変笂鍦栧彲鐭ワ細涓嶅悓瀵害鐨勮剤娌栧彲浠ョ敘(ch菐n)鐢熶笉鍚岀殑瑙掑害杓稿嚭锛屽彲浠ュ埄鐢ㄥ畾鏅�(sh铆)鍣ㄥ拰IO鍙ｆā鎿敘(ch菐n)鐢烶WM娉�锛岄€氶亷(gu貌)瀹氭檪(sh铆)鎺у埗鍗犵┖姣斿緸鑰岄仈(d谩)鍒拌搴︾殑鎺у埗锛岀悊璜栦笂瑷�(j矛)绠�51鍙互鐢�(ch菐n)鐢焨s绱�(j铆)鍒ョ殑鑴堟矕锛�180/2000us=0.09锛屽彲浠ラ仈(d谩)鍒�0.1宸﹀彸鐨勭簿搴︺€�

浜�銆佷己鏈嶉浕姗�(j墨)鐨勫伐浣滃師鐞�

濡備笅鍦栨墍绀烘槸涓€绋噰鐢ㄥ姛鐜囬亱(y霉n)绠楁斁澶у櫒LM675鍒舵垚鐨勪己鏈嶉浕鍕�(d貌ng)姗�(j墨)鎺у埗闆昏矾锛岄浕鍕�(d貌ng)姗�(j墨)閲囩敤鐩存祦浼烘湇闆诲嫊(d貌ng)姗�(j墨)銆傚緸鍦栧彲瑕�(ji脿n)锛屽姛鐜囬亱(y霉n)绠楁斁澶у櫒LM675鐢�15V渚涢浕锛�15V闆诲缍�(j墨ng)RP1鍔犲埌閬�(y霉n)绠楁斁澶у櫒LM675鐨勫悓鐩歌几鍏ョ锛孡M675鐨勮几鍑洪浕澹撳姞鍒颁己鏈嶉浕鍕�(d貌ng)姗�(j墨)鐨勮几鍏ョ銆傞浕鍕�(d貌ng)姗�(j墨)涓婅鏈夋脯(c猫)閫熶俊铏�(h脿o)鐢�(ch菐n)鐢熷櫒锛岀敤浜庡(sh铆)鏅�(sh铆)妾㈡脯(c猫)闆诲嫊(d貌ng)姗�(j墨)鐨勮綁(zhu菐n)閫熴€傚(sh铆)闅涗笂娓�(c猫)閫熶俊铏�(h脿o)鐢�(ch菐n)鐢熷櫒鏄竴绋櫦(f膩)闆绘(j墨)锛屽畠杓稿嚭鐨勯浕澹撹垏杞�(zhu菐n)閫熸垚姝ｆ瘮銆傛脯(c猫)閫熶俊铏�(h脿o)鐢�(ch菐n)鐢熷櫒G杓稿嚭鐨勯浕澹撶稉(j墨ng)鍒嗗闆昏矾鍚庝綔鐐洪€熷害瑾ゅ樊淇¤櫉(h脿o)鍙嶉鍒伴亱(y霉n)绠楁斁澶у櫒鐨勫弽鐩歌几鍏ョ銆傞€熷害鎸囦护闆讳綅鍣≧P1瑷�(sh猫)瀹氱殑闆诲鍊肩稉(j墨ng)R1.R2鍒嗗鍚庡姞鍒伴亱(y霉n)绠楁斁澶у櫒鐨勫悓鐩歌几鍏ョ锛岀浉鐣�(d膩ng)浜庡熀婧�(zh菙n)闆诲銆�

浼烘湇闆诲嫊(d貌ng)姗�(j墨)鐨勬帶鍒跺師鐞嗗湒

浼烘湇闆诲嫊(d貌ng)姗�(j墨)鐢ㄥ瓧姣峂琛ㄧず浼烘湇闆诲嫊(d貌ng)姗�(j墨)锛屾槸椹�(q奴)鍕�(d貌ng)绯荤当(t菕ng)鐨勫嫊(d貌ng)鍔涗箣婧愩€傞亱(y霉n)绠楁斁澶у櫒锛氱敤闆昏矾鍚嶇ū(ch膿ng)琛ㄧず锛屽嵆LM675锛屾槸浼烘湇鎺у埗闆昏矾涓殑鏀惧ぇ鍣ㄤ欢锛岀偤浼烘湇闆诲嫊(d貌ng)姗�(j墨)鎻愪緵椹�(q奴)鍕�(d貌ng)闆绘祦銆�

閫熷害鎸囦护闆讳綅鍣≧P1锛氬湪闆昏矾涓ō(sh猫)瀹氶亱(y霉n)绠楁斁澶у櫒鐨勫熀婧�(zh菙n)闆诲锛屽嵆閫熷害瑷�(sh猫)瀹�銆傛斁澶у櫒澧炵泭瑾�(di脿o)鏁撮浕浣嶅櫒RP2锛氬湪闆昏矾涓垎鍒ョ敤浜庡井瑾�(di脿o)鏀惧ぇ鍣ㄧ殑澧炵泭鍜岄€熷害鍙嶉淇¤櫉(h脿o)鐨勫ぇ灏�銆�

鐣�(d膩ng)闆诲嫊(d貌ng)姗�(j墨)鐨勮矤(f霉)杓夌櫦(f膩)鐢熻畩鍕�(d貌ng)鏅�(sh铆)锛屽弽楗嬪埌閬�(y霉n)绠楁斁澶у櫒鍙嶇浉杓稿叆绔殑闆诲涔熸渻(hu矛)鐧�(f膩)鐢熻畩鍖栵紝鍗抽浕鍕�(d貌ng)姗�(j墨)璨�(f霉)杓夊姞閲嶆檪(sh铆)锛岄€熷害鏈�(hu矛)闄嶄綆锛屾脯(c猫)閫熶俊铏�(h脿o)鐢�(ch菐n)鐢熷櫒鐨勮几鍑洪浕澹撲篃鏈�(hu矛)闄嶄綆锛屼娇閬�(y霉n)绠楁斁澶у櫒鍙嶇浉杓稿叆绔殑闆诲闄嶄綆锛岃┎闆诲鑸囧熀婧�(zh菙n)闆诲涔嬪樊澧炲姞锛岄亱(y霉n)绠楁斁澶у櫒鐨勮几鍑洪浕澹撳鍔�銆傚弽涔�锛岀暥(d膩ng)璨�(f霉)杓夎畩灏忋€侀浕鍕�(d貌ng)姗�(j墨)閫熷害澧炲姞鏅�(sh铆)锛屾脯(c猫)閫熶俊铏�(h脿o)鐢�(ch菐n)鐢熷櫒鐨勮几鍑洪浕澹撲笂鍗�锛屽姞鍒伴亱(y霉n)绠楁斁澶у櫒鍙嶇浉杓稿叆绔殑鍙嶉闆诲澧炲姞锛岃┎闆诲鑸囧熀婧�(zh菙n)闆诲涔嬪樊娓涘皬锛岄亱(y霉n)绠楁斁澶у櫒鐨勮几鍑洪浕澹撲笅闄嶏紝鏈�(hu矛)浣块浕鍕�(d貌ng)姗�(j墨)鐨勯€熷害闅ㄤ箣涓嬮檷锛屽緸鑰屼娇杞�(zhu菐n)閫熻兘鑷嫊(d貌ng)绌�(w臎n)瀹氬湪瑷�(sh猫)瀹氬€�銆�