鎽樿锛氭湰鏂囪┏绱�(x矛)浠嬬垂浜嗗熀浜嶮AXQ3120鐨勫鍔熻兘瀹剁敤闆昏〃鐨勮ō(sh猫)瑷�锛屽(sh铆)鐝�(xi脿n)浜嗛浕琛ㄨ閷勬湁鐢ㄥ姛銆佽兘澶�?q奴)宕縁(xi脿n)鏁�(sh霉)鎿�(j霉)鑷嫊鍌宠几鍜屽垎鏅傛浠樿不(f猫i)鐨勫姛鑳姐€傛湰鏂囧叿楂斾粙绱逛簡绯荤当(t菕ng)鏂规鐨勮ō(sh猫)瑷�锛屽苟瑭崇窗(x矛)浠嬬垂浜嗛儴鍒嗛浕璺�锛岀郸鍑虹郴绲�(t菕ng)杌熶欢鐨勬鍦栧拰鏁�(sh霉)鎿�(j霉)閫氳▕鍗�(xi茅)璀帮紝鏈€鍚庡(sh铆)韪愮殑绲�(ji茅)鏋滃皪绯荤当(t菕ng)鎻愬嚭浜嗘敼閫�(j矛n)銆� 闂�(gu膩n)閸靛瓧: 澶氬姛鑳介浕琛�锛汳AXQ3120锛汥S3231鏅傞悩妯″锛涢€氳▕鍗�(xi茅)璀� 涓€銆佸紩瑷€ 鐩墠甯哥敤鐨勬(j墨)姊扮祼(ji茅)妲�(g貌u)鐨勯浕琛ㄦ槸涓€绋熀浜庢棆杞�(zhu菐n)閲戝爆鍦撶洡鐨勬(j墨)姊板紡鍗冪摝-鏅傞浕琛�锛屽畠涓嶈€冩叜杓稿叆闆诲鎴栧姛鐜囧洜鏁�(sh霉)锛屽彧璺熻工瑷橀寗瀵�(sh铆)闅涚殑鐢ㄩ浕閲�銆傚畠涓昏琛ㄧ従(xi脿n)鍦ㄥ叐鍊嬫柟闈細涓€鏄(j墨)姊伴浕琛ㄤ笉鑳藉瑷橀寗鏅傞枔锛屽畠鍙兘瑷橀寗璨�(f猫i)鎷夋柉杓殑鏃嬭綁(zhu菐n)鏁�(sh霉)锛岀劇娉曡閷勮垏涔嬬浉灏嶆噳(y墨ng)鐨勫揩閫熸棆杞�(zhu菐n)鍜屾參閫熸棆杞�(zhu菐n)鐨勬檪闁�锛涗簩鏄畠鍙兘澶犺閷勭悊璜栧(sh铆)鏅傛湁鍔熷姛鐜�锛岃€屽(sh铆)闅涗笂鐢ㄦ埗鐨勭敤闆婚噺涓嶅儏鍙栨焙浜庤几鍏ラ浕娴�銆佽几鍏ラ浕澹�锛岄倓鍙栨焙浜庡姛鐜囧洜鏁�(sh霉)銆傚偝绲�(t菕ng)鐨勬(j墨)姊板紡闆昏〃鐒℃硶灏嶅姛鐜囧洜鏁�(sh霉)閫�(j矛n)琛岀洠(ji膩n)娓�锛岃€屾槸鐩存帴榛樺畾鐐洪浕娴併€侀浕澹撶浉浣嶇浉鍚�锛岄€欐ǎ瀵�(sh铆)闅涙湁涓€閮ㄥ垎鐒″姛鍔熺巼涔熻瑷堢畻鍦ㄥ収(n猫i)浜�锛岀祼(ji茅)鏋滃(sh铆)闅涙湁鐢ㄥ姛鐜囧皬浜庤几鍏ラ浕澹撳拰闆绘祦鐨勪箻绌�銆傝€屼笖鐝�(xi脿n)鍦ㄧ敤闆绘敹璨�(f猫i)闇€瑕佽€冩叜鍒版檪娈�銆佸嘲鍊肩敤闆婚噺鍜屽姛鐜囧洜鏁�(sh霉)锛岃€屾(j墨)姊板紡闆昏〃鏍规湰鐒℃硶瀵�(sh铆)鐝�(xi脿n)銆傛湰鏂囨彁鍑轰簡涓€绋熀浜嶮axq3120寰帶鍒跺櫒鐨勮ō(sh猫)瑷堟柟妗堣兘澶犺В姹轰笂杩板晱椤�銆� 浜�銆佹柟妗堣ō(sh猫)瑷� 鑸囦互寰€闆昏〃鍗€(q奴)鍒�锛屽鐢ㄥ鍔熻兘闆昏〃涓昏瀵�(sh铆)鐝�(xi脿n)鐨勫姛鑳芥湁浠ヤ笅骞鹃粸(di菐n)锛�1锛夊(sh铆)鐝�(xi脿n)鍙閷勭敤鎴跺(sh铆)闅涗娇鐢ㄧ殑鏈夌敤鍔�锛�2锛夊(sh铆)鐝�(xi脿n)鑷嫊鍒嗘浠樿不(f猫i)锛�3锛夎嚜鍕曟妱鍫遍浕琛ㄦ暩(sh霉)鎿�(j霉)锛涘鐢ㄩ浕琛ㄧ殑鎶€琛�(sh霉)鎸囨(bi膩o)锛氶瀹氶浕澹擄細220V锛涢瀹氶牷鐜囷細50Hz锛涘熀鏈浕娴侊細10锛�40锛堿锛涙檪閻樻簴(zh菙n)纰哄害锛堟棩瑾ゅ樊锛夛細鈮�0.5s銆� 鏈郴绲�(t菕ng)涓昏閲囩敤Maxq3120寰帶鍒跺櫒閫�(j矛n)琛岃ō(sh猫)瑷�銆侻AXQ3120鐨勬牳蹇冩槸MAXQ20鍏�(n猫i)鏍革紝鍏跺伐浣滈牷鐜囩偤8MHz锛屽惈鏈�32k瀛楃瘈(ji茅)闁冨瓨鍜�512瀛楃瘈(ji茅)RAM锛汳AXQ3120鍏�(n猫i)鍚叐鍊�16浣�銆� - 妯℃暩(sh霉)杞�(zhu菐n)鎻涘櫒锛圓DC锛�锛屽彲浠ョ簿纰烘脯閲忕灛鏅傞浕澹撳拰闆绘祦骞呭€煎拰鐩镐綅銆傞€欏叐鍊婣DC閫氶亾姣�48µs瀹屾垚1娆℃柊鐨勮綁(zhu菐n)鎻�锛屽嵆杞�(zhu菐n)鎻涢€熺巼鐐�20667閲囨ǎ/绉掋€侻AXQ3120闆嗘垚浜�1鍊嬪付40浣嶇疮鍔犲櫒鐨�16 x 16浣嶄箻娉曞櫒銆傝┎涔樻硶鍣ㄥ湪鍠€嬫檪閻樺懆鏈熷収(n猫i)鍗冲彲瀹屾垚涓€娆￠亱(y霉n)绠�锛屽洜鑸嘋PU鍏�(n猫i)鏍哥穵瀵嗗湴闆嗘垚鍦ㄤ竴璧�锛屾墍浠ユ晥鐜囨サ楂樸€侻AXQ3120闆嗘垚浜嗕竴鍊婰CD鎺у埗鍣�锛屽彲椹�(q奴)鍕曠殑娈垫暩(sh霉)楂橀仈(d谩)112娈点€侻AXQ3120鎻愪緵鍏╄矾UART锛屽叾涓竴璺叿鏈夌壒娈婇倧杓浕璺�锛屽彲杓曟澗瀵�(sh铆)鐝�(xi脿n)绱呭鏁�(sh霉)鎿�(j霉)鍌宠几鍙︿竴璺彲瀵�(sh铆)鐝�(xi脿n)RS485涓茶鍌宠几銆侻AXQ3120鍖呭惈涓€鍊嬮浕姹犲倷浠界殑鏅傞悩妯″锛屽叿鏈変簽绉掕▓鏁�(sh霉)鍣ㄥ拰鍫辫鍔熻兘銆傝┎鏅傞悩鍏锋湁鏁�(sh霉)瀛楀井瑾�(di脿o)鍔熻兘锛屾檪閻樼簿搴﹂潪甯搁珮銆� 绯荤当(t菕ng)涓昏鍙垎鎴愪互涓嬪咕鍊嬮儴鍒嗭細A/D杞�(zhu菐n)鎻涙暩(sh霉)鎿�(j霉)铏曠悊閮ㄥ垎銆佹檪閻樺強鏅傞枔绠＄悊閮ㄥ垎銆佷覆鍙ｉ€氫俊绠＄悊閮ㄥ垎銆丩CD椤ず閮ㄥ垎鍙婇浕婧愮鐞嗛儴鍒嗐€丣atg瑾�(di脿o)瑭﹂儴鍒嗗拰杌熶欢閮ㄥ垎銆� 1锛堿/D杞�(zhu菐n)鎻涢儴鍒� 鏈儴鍒嗕富瑕侀噰鐢∕AXQ3120鍏�(n猫i)閮ㄧ殑鍏╁€婣/D杞�(zhu菐n)鎻涢€氶亾灏嶉浕澹撲俊铏熷拰闆绘祦淇¤櫉閫�(j矛n)琛岄噰闆�銆傞浕澹撹几鍏ユ槸浜ゆ祦220V锛岃€孧AXQ3120鐨勬ā鎿俊铏熻几鍏ユ槸卤1V锛屾墍浠ュ繀闋堥€�(j矛n)琛屽垎澹撹檿鐞�锛涢浕娴佷俊铏熸槸閫氶亷闆绘祦鍒嗘祦鍣ㄧ敘(ch菐n)鐢熶竴鍊嬮浕澹撲俊铏熼€�(j矛n)琛屾暩(sh霉)鎿�(j霉)閲囬泦锛岄浕琛ㄧ殑鎳�(y墨ng)鐢ㄧ殑鏈€澶ч浕娴佸弮鏁�(sh霉)鍙栨焙浜庢闆绘祦鍒嗘祦鍣�銆傛湰琛ㄨō(sh猫)瑷堢殑瑕�(gu墨)鏍兼槸甯哥敤10A锛屾渶澶�40A銆傝嫢闆绘祦鍒嗘祦鍣ㄧ偤0.5m惟锛岄偅涔堟渶澶ф豢鍋忛浕澹撶偤20mv锛屼絾鏍规摎(j霉)姝愬瀹氬緥锛岄浕娴佸垎娴佸櫒鐨勫姛鑰楀氨鐐�0.8w锛岄浕娴佸垎娴佸櫒涓嶅疁閬哥敤澶т簬0.5m惟锛涙湰琛ㄨō(sh猫)瑷堢殑绮惧害鐐�1%锛屾脯閲忚寖鍦嶅緸1A鍒�40A锛岄偅涔堟渶灏忚兘澶犲垎杈ㄧ殑闆绘祦鐐�10mA锛屾渶澶ц璀樺垾40A鍗�4000鍊�10mA鎵嶄笉鑷充簬A/D椋藉拰锛屾墍浠/D鐨勭簿搴﹀繀闋堣閬�(d谩)鍒�12浣嶏紙4096鍒嗕箣涓€锛変互涓�锛岃€孧AXQ3120鐨凙/D杞�(zhu菐n)鎻涙槸16浣嶇殑锛岃兘澶犳豢瓒宠ō(sh猫)瑷堥渶姹�锛屾墍浠ラ噰鐢�0.5m惟闆绘祦鍒嗘祦鍣ㄣ€傞浕澹撳垎澹撻浕璺鍦�1鎵€绀�銆� 2锛夋檪閻樺強鏅傞枔绠＄悊閮ㄥ垎 MAXQ3120鐨勬檪閻橀浕璺湁鍏╃ó鎯呮硜锛氫竴绋槸閲囩敤鏅傞悩鑺墖DS3231銆傞€欐鏅傞悩鍏�(n猫i)鍚竴鍊嬫棩姝锋檪閻�锛屼竴鍊嬮爯(y霉)鍏堢閬稿苟缍�(j墨ng)閬庡井瑾�(di脿o)鐨勬櫠楂斿拰涓€鍊嬫韩搴﹀偝鎰熷櫒銆傛檪閻樿嚜鍕曢€�(j矛n)琛屾韩搴﹁(b菙)鍎燂紝鍦ㄦ暣鍊�-40掳C鑷�+85掳C婧害鑼冨湇鍏�(n猫i)鍙(sh铆)鐝�(xi脿n)鍎�(y艒u)浜幝�3.5ppm/掳C鐨勮▓鏅傜簿搴�銆侱S3231閫氶亷宸ユキ(y猫)妯�(bi膩o)婧�(zh菙n)I2C绺界窔鍙互鐩存帴鑸囧井鎺у埗鍣ㄩ€ｆ帴銆傚彟涓€绋儏娉佹槸浣跨敤MAXQ3120鍏�(n猫i)閮ㄧ殑鏅傞悩銆侻AXQ3120鍏�(n猫i)鍚殑鏃ユ鏅傞悩閲囩敤妯�(bi膩o)婧�(zh菙n)鐨勯煶鍙夋櫠楂斾綔鐐烘檪鍩�锛岄煶鍙夋櫠楂旂殑宸ヤ綔闋荤巼鍙楁韩搴︾殑褰遍熆闈炲父椤憲锛岄毃钁楁韩搴︾殑璁婂寲鏅傞悩鐨勯牷鐜囧皣鏈冭畩鍖�銆侻AXQ3120鍚屾檪鍏�(n猫i)鍚竴鍊嬪井瑾�(di脿o)瀵勫瓨鍣ㄧ敤浜庡井瑾�(di脿o)鍔熻兘锛岄€氶亷澶栨帴涓€鍊嬫韩搴﹀偝鎰熷櫒渚嗙嵅鍙栨韩搴︼紝骞朵笖绶ㄥ杌熶欢鏍规摎(j霉)婧害灏嶅井瑾�(di脿o)瀵勫瓨鍣ㄩ€�(j矛n)琛岃(di脿o)鏁�锛岀稉(j墨ng)閬庡井瑾�(di脿o)瑷堟檪鍚庣殑绮惧害鍎�(y艒u)浜�4ppm銆傜稖鍚堟瘮杓冮噰鐢ㄧ涓€绋柟妗堛€傝▓鏅傛敹璨�(f猫i)鏄牴鎿�(j霉)涓嶅悓鐨勬檪闁撴閫�(j矛n)琛岃▓绠�锛屾妸璨�(f猫i)鐜囧閫�(j矛n)瀵勫瓨鍣�锛屾牴鎿�(j霉)寰濪S3231璁€鍙栫殑鏅傛閫�(j矛n)琛屾敹璨�(f猫i)锛岀郴绲�(t菕ng)鏈€澶ф敮鎸佸洓鍊嬫檪娈�銆侱S3231鎺ュ彛闆昏矾濡傚湒2鎵€绀恒€� 3锛変覆鍙ｉ€氫俊绠＄悊閮ㄥ垎 MAXQ3120闆嗘垚鍏╁€嬩覆鍙ｄ覆鍙ｆ帶鍒跺櫒锛屽叾涓竴鍊嬪彲浠ユ帴绱呭鏀剁櫦(f膩)鍣�锛屽彟涓€鍊嬪彲浣滄櫘閫氫覆鍙ｄ娇鐢ㄣ€傛湰绯荤当(t菕ng)娌掓湁瑷�(sh猫)瑷堢磪澶栭€氳▕閮ㄥ垎锛屽彧瑷�(sh猫)瑷堜簡RS485閫氳▕锛屼娇鐢ㄤ簡SP3490鑺墖锛屽叾闆昏矾鍦栧鍦�3鎵€绀恒€� 4锛塋CD椤ず閮ㄥ垎鍙婇浕婧愮鐞嗛儴鍒� MAXQ3120闆嗘垚浜嗕竴鍊婰CD鎺у埗鍣�锛屽彲椹�(q奴)鍕曠殑娈垫暩(sh霉)楂橀仈(d谩)112娈�銆傛墍浠ユ湰绯荤当(t菕ng)鐩存帴鎶奙AXQ3120鑸嘗CD椤ず灞忛€ｆ帴璧蜂締銆傞浕婧愰噰鐢⊿PX1117鑺墖锛屽畠鑳藉?q奴)顣�?V鐨勯浕澹撹綁(zhu菐n)鍖栫偤宸ヤ綔闆诲銆傞渶瑕佹敞鎰忕殑SPX1117鑺墖鐨勭涓€鍊嬬鑵崇偤GND锛岃€岃垏7805鑺墖鐨勭鑵虫湁鎵€涓嶅悓銆� 5锛塉atg瑾�(di脿o)瑭﹂儴鍒嗗拰杌熶欢閮ㄥ垎 Jatg瑾�(di脿o)瑭﹂儴鍒嗘槸浣跨敤MAXQ3120鐨凨IT鎻愪緵鐨凧atg瑾�(di脿o)瑭﹂浕璺�銆� 杌熶欢涓昏鍖呭惈骞惧€嬫ā濉婏細鍒濆鍖栨ā濉�銆丄/D閲囨ǎ妯″銆佸瘎瀛樺櫒绠＄悊妯″銆佹暩(sh霉)鎿�(j霉)瑷堢畻鍙婃敹璨�(f猫i)绠＄悊妯″锛屾暩(sh霉)鎿�(j霉)灏佽妯″銆� 绯荤当(t菕ng)杌熶欢鐨勬祦绋嬪湒濡傚湒4鎵€绀猴細 鏁�(sh霉)鎿�(j霉)閫氳▕鍗�(xi茅)璀扮殑鏍煎紡濡傝〃1锛� 琛�1 閫氳▕鍗�(xi茅)璀版牸寮� 鏁�(sh霉)鎿�(j霉)闋€佹暩(sh霉)鎿�(j霉)灏撅細鍒嗗垾鐐�2鍊嬪瓧绡€(ji茅)锛岀敤渚嗗崁(q奴)鍒�?j菒n)?sh霉)鎿�(j霉)鐨勫畬鏁存€�锛屼富瑕侀渶瑕佽€冩叜鏁�(sh霉)鎿�(j霉)鐨勯€忔槑鍌宠几鍟忛锛屽嵆鏁�(sh霉)鎿�(j霉)涓嚭鐝�(xi脿n)鑸囨暩(sh霉)鎿�(j霉)灏剧浉鍚岀殑鏁�(sh霉)鎿�(j霉)灏�(d菐o)鑷寸劇娉曢€氶亷鏍￠(y脿n)銆� 鐩(bi膩o)姗�(j墨)鍦板潃锛�6鍊嬪瓧绡€(ji茅)锛岀敤渚嗗崁(q奴)鍒�?j菒n)?sh霉)鎿�(j霉)鐨勭櫦(f膩)閫佺洰妯�(bi膩o)銆� 鍛戒护锛氫竴鍊嬪瓧绡€(ji茅)锛岀敤渚嗘寚绀虹洰妯�(bi膩o)姗�(j墨)鐨勫叿楂斿嫊浣�銆� 鏁�(sh霉)鎿�(j霉)闀峰害銆佹暩(sh霉)鎿�(j霉)锛氭暩(sh霉)鎿�(j霉)闀峰害鏄寚鏁�(sh霉)鎿�(j霉)鐨勯暦搴�锛屾暩(sh霉)鎿�(j霉)鏄懡浠ゆ墍闇€瑕佺殑鍙冩暩(sh霉)銆� 鏈郴绲�(t菕ng)閲囩敤RS485鎺ュ彛绲勬垚鐨勭恫(w菐ng)绲�(lu貌)锛屾暩(sh霉)鎿�(j霉)鐨勫偝閫侀噰鐢ㄨ吉瑭㈢殑鏂瑰紡锛岄€欐ǎ闆栫劧瀵�(sh铆)鏅傛€т笉楂�锛屼絾鍙互閬垮厤鏁�(sh霉)鎿�(j霉)娌栫獊锛屽彲浠ュ畬鍏ㄥ(sh铆)鐝�(xi脿n)鏁�(sh霉)鎿�(j霉)鐨勮嚜鍕曞偝杓搞€� 涓�銆佺祼(ji茅)鏉熻獮 鏈枃涓綔鑰呭壍(chu脿ng)鏂伴粸(di菐n)鏄€氶亷闆嗘垚搴﹀緢楂樼殑MAXQ3120鑺墖锛岃ō(sh猫)瑷堜簡涓€娆捐兘澶犵湡瀵�(sh铆)瑷橀寗鐢ㄦ埗鏈夌敤鍔�銆佽兘澶犲璨�(f猫i)鐜囨敹璨�(f猫i)銆佽嚜鍕曞偝閫佹暩(sh霉)鎿�(j霉)鐨勫鐢ㄩ浕琛�锛屽苟涓斿湪寰堝ソ鐨勬帶鍒跺埗浣滄垚鏈殑鍓嶆彁涓嬶紝绌�(w臎n)瀹氭€ч潪甯稿ソ銆傛湰绯荤当(t菕ng)宸茬稉(j墨ng)瀹屾垚娓│锛岄仈(d谩)鍒颁簡鐣�(d膩ng)鍒濈殑瑷�(sh猫)瑷堣姹�锛屼絾鏄湁涓€閮ㄥ垎鍏�(n猫i)瀹归渶瑕佹敼閫�(j矛n)锛屽锛氫覆鍙ｉ€氫俊閮ㄥ垎鍙畬鎴�485鎺ュ彛锛岄倓闇€澧炲姞绱呭閫氫俊鎺ュ彛銆侀浕琛ㄩ倓闇€澧炲姞闃叉經鍕曢倧杓ō(sh猫)瑷�锛岄浕澹撳洖璺姞椤嶅畾闆诲115%锛岄浕娴佺窔璺劇闆绘祦鏅傦紝闆昏〃涓嶇敘(ch菐n)鐢熷浜庝竴鍊嬭剤娌栫殑杓稿嚭锛涘彟澶栫偤绡€(ji茅)绱勬垚鏈噳(y墨ng)鑰冩叜浣跨敤鐗囧収(n猫i)鏅舵尟绛�銆� 鍙冭€冩枃鐛�(xi脿n) 1銆佽儭鍦ｅ牤锛屽父鏄�锛屽嫉鏉变締锛屽挤(qi谩ng)鏂囩京. 鍩轰簬鐒＄窔閫氳▕鐨勯仩(yu菐n)绋嬬挵(hu谩n)澧冪洠(ji膩n)娓垏绠＄悊淇℃伅绯荤当(t菕ng)瑷�(sh猫)瑷�. 寰▓绠楁(j墨)淇℃伅锛�2004,20锛�3锛夛細55-56 2銆丮AXQ3120 Datasheet. Maxim Integrated Product. Inc. 3銆佽瑵甯屼粊. 瑷堢畻姗�(j墨)缍�(w菐ng)绲�(lu貌). 澶ч€ｇ悊宸ュ嚭鐗堢ぞ. 2004.9 4銆丆ustomization Guide for the MAXQ3120 Electricity Meter Reference Design. Maxim Integrated Product. Inc. 2006.3