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
銆�銆�A/D 杞�(zhu菐n)鎻涘櫒鍗�妯℃暩(sh霉)杞�(zhu菐n)鎻涘櫒锛屾垨绨＄ū ADC锛岄�氬父鏄寚涓�鍊�(g猫)灏囨ā鎿俊铏�(h脿o)杞�(zhu菐n)璁�?y艒u)闁�?sh霉)瀛椾俊铏�(h脿o)鐨�闆诲瓙鍏冧欢銆� 閫氬父鐨勬ā鏁�(sh霉)杞�(zhu菐n)鎻涘櫒鏄皣涓�鍊�(g猫)杓稿叆闆诲淇¤櫉(h脿o)杞�(zhu菐n)鎻涚偤涓�鍊�(g猫)杓稿嚭鐨勬暩(sh霉)瀛椾俊铏�(h脿o)銆傜敱浜庢暩(sh霉)瀛椾俊铏�(h脿o)鏈韩涓嶅叿鏈夊(sh铆)闅涙剰缇�锛屽儏鍍呰〃绀轰竴鍊�(g猫)鐩稿皪澶у皬銆傛晠浠讳綍涓�鍊�(g猫)妯℃暩(sh霉)杞�(zhu菐n)鎻涘櫒閮介渶瑕佷竴鍊�(g猫)鍙冭�冩ā鎿噺浣滅偤杞�(zhu菐n)鎻涚殑妯�(bi膩o)婧�(zh菙n)锛屾瘮杓冨父瑕嬬殑鍙冭�冩(bi膩o)婧�(zh菙n)鐐虹殑鍙綁(zhu菐n)鎻涗俊铏�(h脿o)澶у皬銆傝�岃几鍑虹殑鏁�(sh霉)瀛楅噺鍓囪〃绀鸿几鍏ヤ俊铏�(h脿o)鐩稿皪浜庡弮鑰冧俊铏�(h脿o)鐨勫ぇ灏忋�� 妯℃暩(sh霉)杞�(zhu菐n)鎻涘櫒鏈�閲嶈鐨勫弮鏁�(sh霉)鏄綁(zhu菐n)鎻涚殑绮惧害锛岄�氬父鐢ㄨ几鍑虹殑鏁�(sh霉)瀛椾俊铏�(h脿o)鐨勪綅鏁�(sh霉)鐨勫灏戣〃绀�銆傝綁(zhu菐n)鎻涘櫒鑳藉婧�(zh菙n)纰鸿几鍑虹殑鏁�(sh霉)瀛椾俊铏�(h脿o)鐨勪綅鏁�(sh霉)瓒婂锛岃〃绀鸿綁(zhu菐n)鎻涘櫒鑳藉鍒嗚鲸杓稿叆淇¤櫉(h脿o)鐨勮兘鍔涜秺寮�(qi谩ng)锛岃綁(zhu菐n)鎻涘櫒鐨勬�ц兘涔熷氨瓒婂ソ銆�
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銆�銆�1锛夌⿳鍒嗗瀷锛堝TLC7135锛�
銆�銆�绌嶅垎鍨婣D宸ヤ綔鍘熺悊鏄皣杓稿叆闆诲杞�(zhu菐n)鎻涙垚鏅�(sh铆)闁�(鑴堟矕瀵害淇¤櫉(h脿o))鎴栭牷鐜�(鑴堟矕闋荤巼)锛岀劧鍚庣敱瀹氭檪(sh铆)鍣�/瑷�(j矛)鏁�(sh霉)鍣ㄧ嵅寰楁暩(sh霉)瀛楀�笺�傚叾鍎�(y艒u)榛�(di菐n)鏄敤绨″柈闆昏矾灏辫兘鐛插緱楂樺垎杈ㄧ巼锛屼絾缂洪粸(di菐n)鏄敱浜庤綁(zhu菐n)鎻涚簿搴︿緷璩翠簬绌嶅垎鏅�(sh铆)闁�锛屽洜姝よ綁(zhu菐n)鎻涢�熺巼妤典綆銆傚垵鏈熺殑鍠墖AD杞�(zhu菐n)鎻涘櫒澶у閲囩敤绌嶅垎鍨嬶紝鐝�(xi脿n)鍦ㄩ�愭姣旇純鍨嬪凡閫愭鎴愮偤涓绘祦銆�
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銆�銆�澹撻牷璁婃彌鍨嬶紙Voltage-Frequency Converter锛夋槸閫氶亷闁撴帴杞�(zhu菐n)鎻涙柟寮忓(sh铆)鐝�(xi脿n)妯℃暩(sh霉)杞�(zhu菐n)鎻涚殑銆傚叾鍘熺悊鏄鍏堝皣杓稿叆鐨勬ā鎿俊铏�(h脿o)杞�(zhu菐n)鎻涙垚闋荤巼锛岀劧鍚庣敤瑷�(j矛)鏁�(sh霉)鍣ㄥ皣闋荤巼杞�(zhu菐n)鎻涙垚鏁�(sh霉)瀛楅噺銆傚緸鐞嗚珫涓婅瑳閫欑óAD鐨勫垎杈ㄧ巼骞句箮鍙互鐒￠檺澧炲姞锛屽彧瑕侀噰妯ｇ殑鏅�(sh铆)闁撹兘澶犳豢瓒宠几鍑洪牷鐜囧垎杈ㄧ巼瑕佹眰鐨勭疮绌嶈剤娌栧��(g猫)鏁�(sh霉)鐨勫搴�銆傚叾鍎�(y艒u)榛�(di菐n)鏄垎杈巼楂樸�佸姛鑰椾綆銆佸児(ji脿)鏍间綆锛屼絾鏄渶瑕佸閮ㄨ▓(j矛)鏁�(sh霉)闆昏矾鍏卞悓瀹屾垚AD杞�(zhu菐n)鎻�銆�
銆�銆�3锛夊苟琛屾瘮杓冨瀷/涓插苟琛屾瘮杓冨瀷锛堝TLC5510锛�
銆�銆�骞惰姣旇純鍨婣D閲囩敤澶氬��(g猫)姣旇純鍣�锛屽儏浣滀竴娆℃瘮杓冭�屽(sh铆)琛岃綁(zhu菐n)鎻�锛屽張绋盕Lash(蹇��)鍨�銆傜敱浜庤綁(zhu菐n)鎻涢�熺巼妤甸珮锛宯浣嶇殑杞�(zhu菐n)鎻涢渶瑕�2n-1鍊�(g猫)姣旇純鍣�锛屽洜姝ら浕璺(gu墨)妯′篃妤靛ぇ锛屽児(ji脿)鏍间篃楂�锛屽彧閬╃敤浜庤闋籄D杞�(zhu菐n)鎻涘櫒绛夐�熷害鐗瑰垾楂樼殑闋�(l菒ng)鍩�銆�
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銆�?銆�?锛夐噺鍖栬宸紙Quantizing Error锛�銆傜敱浜嶢D鐨勬湁闄愬垎杈ㄧ巼鑰屽紩璧风殑瑾ゅ樊锛屽嵆鏈夐檺鍒嗚鲸鐜嘇D鐨勯殠姊媭杞�(zhu菐n)绉荤壒鎬ф洸绶氳垏鐒￠檺鍒嗚鲸鐜嘇D锛堢悊鎯矨D锛夌殑杞�(zhu菐n)绉荤壒鎬ф洸绶氾紙鐩寸窔锛変箣闁撶殑鍋忓樊銆傞�氬父鏄�1鍊�(g猫)鎴栧崐鍊�(g猫)鏈�灏忔暩(sh霉)瀛楅噺鐨勬ā鎿畩鍖栭噺锛岃〃绀虹偤1LSB銆�1锛�2LSB銆�
銆�銆�锛�4锛夊亸绉昏宸紙Offset Error锛�銆傝几浜轰俊铏�(h脿o)鐐洪浄鏅�(sh铆)杓稿嚭淇¤櫉(h脿o)涓嶇偤闆剁殑鍊硷紝鍙鎺ラ浕浣嶅櫒瑾�(di脿o)鑷虫渶灏�銆�
銆�銆�锛�5锛夋豢鍒诲害瑾ゅ樊锛團ull Scale Error锛�銆傛豢鍒诲害杓稿嚭鏅�(sh铆)灏嶆噳(y墨ng)鐨勮几浜轰俊铏�(h脿o)鑸囩悊鎯宠几浜轰俊铏�(h脿o)鍊间箣宸�銆�
銆�?銆�?锛夌窔鎬у害锛圠ineafity锛夈�傚(sh铆)闅涜綁(zhu菐n)鎻涘櫒鐨勮綁(zhu菐n)绉诲嚱鏁�(sh霉)鑸囩悊鎯崇洿绶氱殑鍋忕Щ锛屼笉鍖呮嫭浠ヤ笂3绋宸�銆�
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