TL494IDR 鏅�(sh铆)闁擄細2024/7/8 15:21:58 闁辫畝锛�603

TL494IDR鏄竴娆鹃泦鎴愰浕璺姱鐗�锛屽畠鏄竴绋彲绶ㄧ▼绮惧瘑PWM鎺у埗鍣�锛岀敱寰峰窞鍎€鍣ㄥ叕鍙哥敓鐢�(ch菐n)銆俆L494IDR鐨勪富瑕佸姛鑳芥槸浣跨敤鍏�(n猫i)閮ㄦ瘮杓冨櫒鍜岃宸斁澶у櫒渚嗙敓鎴怭WM淇¤櫉(h脿o)锛屼互渚挎帶鍒堕枊闂�(gu膩n)闆绘簮鐨勮几鍑洪浕澹撳拰闆绘祦锛屽緸鑰屽(sh铆)鐝�(xi脿n)鐩存祦闆绘簮鐨勮(di脿o)绡€(ji茅)鍜岃畩鎻�銆傝┎鑺墖寤ｆ硾鎳�(y墨ng)鐢ㄤ簬鍚勭ó闁嬮棞(gu膩n)闆绘簮銆侀€嗚畩鍣�銆侀浕姗�(j墨)椹�(q奴)鍕�(d貌ng)鍣ㄥ拰鐓ф槑鎺у埗绛夐牁(l菒ng)鍩熴€�
銆€銆€TL494IDR閲囩敤鍩轰簬闆诲妯″紡鐨凱WM鎺у埗鎶€琛�(sh霉)銆傚叾鏍稿績鏄竴鍊�(g猫)瑾ゅ樊鏀惧ぇ鍣�锛屽畠灏囧弮鑰冮浕澹撳拰鍙嶉闆诲閫�(j矛n)琛屾瘮杓�锛屽苟灏囧叾杞�(zhu菐n)鎻涚偤PWM淇¤櫉(h脿o)銆侾WM淇¤櫉(h脿o)鐨勫崰绌烘瘮鍜岄牷鐜囧彲浠ラ€氶亷澶栭儴闆昏矾閫�(j矛n)琛岀法绋嬨€傝┎鑺墖閭勫叿鏈変竴鍊�(g猫)姣旇純鍣�锛岀敤浜庢娓�(c猫)杓稿嚭闆诲鍜屽弮鑰冮浕澹撲箣闁撶殑宸暟锛屽苟瑾�(di脿o)鏁碢WM淇¤櫉(h脿o)鐨勫崰绌烘瘮锛屼互浣胯几鍑洪浕澹撲繚鎸佸湪瑷�(sh猫)瀹氬€艰寖鍦嶅収(n猫i)銆傛澶�锛孴L494IDR閭勫叿鏈夐亷澹撲繚璀�(h霉)鍜岄亷娴佷繚璀�(h霉)鍔熻兘锛屼互纰轰繚闆绘簮鐨勫畨鍏ㄦ€�

鍩烘湰绲�(ji茅)妲�(g貌u)

TL494IDR鐨勫熀鏈祼(ji茅)妲�(g貌u)鍖呮嫭瑾ゅ樊鏀惧ぇ鍣ㄣ€佹瘮杓冨櫒銆佹尟钑╁櫒鍜孭WM鎺у埗鍣ㄥ洓鍊�(g猫)閮ㄥ垎銆�
銆€銆€1銆佽宸斁澶у櫒锛氳宸斁澶у櫒鏄疶L494IDR鐨勬牳蹇冮儴鍒�锛屽叾浣滅敤鏄皣鍙冭€冮浕澹撳拰鍙嶉闆诲閫�(j矛n)琛屾瘮杓�锛屽苟灏囧樊鐣拌綁(zhu菐n)鎻涚偤PWM淇¤櫉(h脿o)杓稿嚭銆傝宸斁澶у櫒閫氬父鐢变竴鍊�(g猫)宸垎鏀惧ぇ鍣ㄥ拰涓€鍊�(g猫)鍙嶉缍�(w菐ng)绲�(lu貌)绲勬垚銆�
銆€銆€2銆佹瘮杓冨櫒锛氭瘮杓冨櫒鐢ㄤ簬妾㈡脯(c猫)杓稿嚭闆诲鍜屽弮鑰冮浕澹撲箣闁撶殑宸暟锛屽苟閫氶亷PWM鎺у埗鍣ㄨ(di脿o)鏁碢WM淇¤櫉(h脿o)鐨勫崰绌烘瘮锛屼互浣胯几鍑洪浕澹撲繚鎸佸湪瑷�(sh猫)瀹氬€艰寖鍦嶅収(n猫i)銆�
銆€銆€3銆佹尟钑╁櫒锛氭尟钑╁櫒鏄疶L494IDR鐨勬檪(sh铆)鍩洪儴鍒嗭紝鍏朵綔鐢ㄦ槸鐢�(ch菐n)鐢熺┅(w臎n)瀹氱殑鏅�(sh铆)鍩轰俊铏�(h脿o)锛岀敤浜嶱WM淇¤櫉(h脿o)鐨勭敓鎴愬拰鍚屾銆�
銆€銆€4銆丳WM鎺у埗鍣細PWM鎺у埗鍣ㄦ槸TL494IDR鐨勬渶鍚庝竴閮ㄥ垎锛屽叾浣滅敤鏄皣鎸暕鍣ㄧ敘(ch菐n)鐢熺殑鏅�(sh铆)鍩轰俊铏�(h脿o)鍜岃宸斁澶у櫒杓稿嚭鐨凱WM淇¤櫉(h脿o)閫�(j矛n)琛屾瘮杓冿紝骞舵牴鎿�(j霉)姣旇純绲�(ji茅)鏋滆(di脿o)鏁碢WM淇¤櫉(h脿o)鐨勫崰绌烘瘮鍜岄牷鐜�銆�

鍙冩暩(sh霉)

宸ヤ綔闆诲锛�3V鑷�36V
銆€銆€杓稿嚭闆绘祦锛毬�200mA
銆€銆€闁嬮棞(gu膩n)闋荤巼锛�500kHz

鐗归粸(di菐n)

1.楂樼簿搴︾殑PWM杓稿嚭
銆€銆€2.鍙法绋嬮牷鐜囧拰鍗犵┖姣�
銆€銆€3.鍏�(n猫i)閮ㄨ宸斁澶у櫒
銆€銆€4.鍏锋湁閬庡淇濊(h霉)鍜岄亷娴佷繚璀�(h霉)鍔熻兘
銆€銆€5.婧害鑼冨湇寤ｆ硾
銆€銆€6.鍏锋湁浣庡姛鑰楀拰楂樻晥鐜�
銆€銆€7.鍙潬鎬ч珮锛岄仼鐢ㄤ簬宸ユキ(y猫)鐠�(hu谩n)澧�

宸ヤ綔鍘熺悊

TL494IDR閲囩敤鍩轰簬闆诲妯″紡鐨凱WM鎺у埗鎶€琛�(sh霉)銆傚叾鏍稿績鏄竴鍊�(g猫)瑾ゅ樊鏀惧ぇ鍣紝瀹冨皣鍙冭€冮浕澹撳拰鍙嶉闆诲閫�(j矛n)琛屾瘮杓�锛屽苟灏囧叾杞�(zhu菐n)鎻涚偤PWM淇¤櫉(h脿o)銆侾WM淇¤櫉(h脿o)鐨勫崰绌烘瘮鍜岄牷鐜囧彲浠ラ€氶亷澶栭儴闆昏矾閫�(j矛n)琛岀法绋�銆傝┎鑺墖閭勫叿鏈変竴鍊�(g猫)姣旇純鍣�锛岀敤浜庢娓�(c猫)杓稿嚭闆诲鍜屽弮鑰冮浕澹撲箣闁撶殑宸暟锛屽苟瑾�(di脿o)鏁碢WM淇¤櫉(h脿o)鐨勫崰绌烘瘮锛屼互浣胯几鍑洪浕澹撲繚鎸佸湪瑷�(sh猫)瀹氬€艰寖鍦嶅収(n猫i)銆傛澶栵紝TL494IDR閭勫叿鏈夐亷澹撲繚璀�(h霉)鍜岄亷娴佷繚璀�(h霉)鍔熻兘锛屼互纰轰繚闆绘簮鐨勫畨鍏ㄦ€�銆�

鎳�(y墨ng)鐢�

1.闁嬮棞(gu膩n)闆绘簮
銆€銆€2.閫嗚畩鍣�
銆€銆€3.闆绘(j墨)椹�(q奴)鍕�(d貌ng)鍣�
銆€銆€4.鐓ф槑鎺у埗

瀹夎瑕侀粸(di菐n)

TL494IDR鏄竴娆惧父瑕嬬殑PWM鎺у埗鑺墖锛屾噳(y墨ng)鐢ㄥ唬娉�銆傜偤纰轰繚瑭茶姱鐗囩殑姝ｅ父閬�(y霉n)琛岋紝姝ｇ⒑鐨勫畨瑁濇柟娉曞拰娉ㄦ剰浜嬮爡(xi脿ng)闈炲父閲嶈銆備笅闈㈡槸TL494IDR鐨勫畨瑁濊榛�(di菐n)锛�
銆€銆€1銆佸紩鑵冲竷灞€锛歍L494IDR鍏辨湁16鍊�(g猫)寮曡叧锛岄渶瑕佹纰洪€ｆ帴鍒伴浕璺澘涓�銆傚湪瀹夎鍓嶏紝鍕�(w霉)蹇呬粩绱�(x矛)闁辫畝鏁�(sh霉)鎿�(j霉)鎵嬪唺(c猫)锛屼簡瑙ｅ悇鍊�(g猫)寮曡叧鐨勫姛鑳藉拰甯冨眬銆傚湪瀹夎鏅�(sh铆)锛屾噳(y墨ng)纰轰繚寮曡叧姝ｇ⒑灏�(du矛)榻婂苟灏囧叾鎻掑叆鍒版纰虹殑鎻掑骇涓�銆�
銆€銆€2銆佺啽绠＄悊锛氬湪瀹夎TL494IDR鏅�(sh铆)锛屾噳(y墨ng)鑰冩叜鍏剁啽绠＄悊鍟忛銆傜敱浜庤┎鑺墖闇€瑕佸湪楂樺姛鐜囨儏娉佷笅宸ヤ綔锛屽洜姝ら渶瑕佽€冩叜鏁ｇ啽鍟忛銆傚缓璀板湪闆昏矾鏉夸笂瀹夎鏁ｇ啽鍣紝浠ョ⒑淇濊姱鐗囩殑姝ｅ父閬�(y霉n)琛�銆�
銆€銆€3銆侀槻闈滈浕锛氬湪瀹夎TL494IDR鏅�(sh铆)锛屾噳(y墨ng)娉ㄦ剰闃查潨闆�銆傞潨闆诲彲鑳芥渻(hu矛)灏�(du矛)鑺墖閫犳垚鎼嶅锛屽洜姝ゅ湪瀹夎鍓嶆噳(y墨ng)鎺ュ湴铏曠悊锛屼互纰轰繚鑺墖瀹夊叏銆�
銆€銆€4銆佺剨鎺ワ細鍦ㄥ畨瑁漈L494IDR鏅�(sh铆)锛屾噳(y墨ng)娉ㄦ剰鐒婃帴銆傜剨鎺ヤ笉鑹彲鑳芥渻(hu矛)灏�(d菐o)鑷磋姱鐗囧け鏁堟垨鐭矾銆傚缓璀颁娇鐢ㄩ珮璩�(zh矛)閲忕殑鐒婃帴瑷�(sh猫)鍌欏拰鏉愭枡锛屽苟灏�(du矛)鐒婃帴閫�(j矛n)琛岃唱(zh矛)閲忔鏌�锛屼互纰轰繚鑺墖鐨勬甯搁亱(y霉n)琛屻€�
銆€銆€5銆佹竻娼旓細鍦ㄥ畨瑁漈L494IDR鏅�(sh铆)锛屾噳(y墨ng)娉ㄦ剰娓呮綌銆傚湪闆昏矾鏉夸笂瀹夎鑺墖鍓嶏紝鎳�(y墨ng)纰轰繚闆昏矾鏉胯〃闈㈠共鍑堢劇濉�銆傚缓璀颁娇鐢ㄧ劇闈滈浕鐨勬竻娼斿姂閫�(j矛n)琛屾竻娼旓紝浠ョ⒑淇濊姱鐗囩殑姝ｅ父閬�(y霉n)琛�銆�