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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

PTC(鐔辨晱闆婚樆)
闁辫畝锛�9200鏅傞枔锛�2017-07-07 16:02:41

    鏄疨ositive Temperature Coefficient 鐨勭府瀵紝鎰忔�濇槸姝ｇ殑婧害绯绘暩(sh霉)锛� 娉涙寚姝ｆ韩搴︾郴鏁�(sh霉)寰堝ぇ鐨勫崐灏�(d菐o)楂旀潗鏂欐垨鍏冨櫒浠躲�傞�氬父鎴戝�戞彁鍒扮殑PTC鏄寚姝ｆ韩搴︾郴鏁�(sh霉)鐔辨晱闆婚樆锛岀啊绋盤TC鐔辨晱闆婚樆銆�
    PTC鐔辨晱闆婚樆鏄竴绋吀鍨嬪叿鏈夋韩搴︽晱鎰熸�х殑鍗婂皫(d菐o)楂旈浕闃�锛岃秴閬庝竴瀹氱殑婧害锛堝眳閲屾韩搴︼級鏅�锛屽畠鐨勯浕闃诲�奸毃钁楁韩搴︾殑鍗囬珮鍛堥殠韬嶆�х殑澧為珮銆�
    闄剁摲PTC鏄敱閳﹂吀閶囷紙鎴栭嵍銆侀墰锛夌偤涓绘垚鍒嗭紝娣诲姞灏戦噺鏂戒富锛圷銆丯b銆丅i銆丼b锛夈�佸彈涓伙紙Mn銆丗e锛夊厓绱�锛屼互鍙婄幓鐠冿紙姘у寲纭�銆佹哀鍖栭媮锛夌瓑娣诲姞鍔戯紝缍�(j墨ng)閬庣噿绲�(ji茅)鑰屾垚鐨勫崐灏�(d菐o)楂旈櫠鐡�銆�
    闄剁摲PTC鍦ㄥ眳閲屾韩搴︿互涓嬪叿鏈夊皬闆婚樆锛屽眳閲屾韩搴︿互涓婇浕闃婚殠韬嶆�у鍔�1000鍊崀鐧捐惉鍊�銆�

璧锋簮

    PTC(positivetemperaturecoefficient锛夌偤姝ｆ韩搴︾郴鏁�(sh霉)鐔辨晱鏉愭枡锛屽畠鍏锋湁闆婚樆鐜囬毃婧害鍗囬珮鑰屽澶х殑鐗规��銆�1 955骞磋嵎铇彶鍒╂郸鍏徃鐨勬捣鏇肩瓑浜虹櫦(f膩)鐝�(xi脿n)鍦˙aTiO3闄剁摲涓姞鍏ュ井閲忕殑绋�鍦熷厓绱犲悗锛屽叾瀹ゆ韩闆婚樆鐜囧ぇ骞呭害涓嬮檷锛屽湪鏌愪竴寰堢獎鐨勬韩搴﹁寖鍦嶅収(n猫i)鍏堕浕闃荤巼鍙互鍗囬珮涓夊�嬫暩(sh霉)閲忕礆浠ヤ笂锛岄鍏堢櫦(f膩)鐝�(xi脿n)浜哖TC鏉愭枡鐨勭壒鎬с��4 0澶氬勾渚�锛屽皪PTC鏉愭枡鐨勭爺绌跺彇寰椾簡閲嶅ぇ鐨勭獊鐮�锛孭TC鏉愭枡鐨勭悊璜栨棩瓒ㄦ垚鐔燂紝鎳�(y墨ng)鐢ㄨ寖鍦嶄篃涓嶆柗鎿村ぇ銆�

鍒嗛

    PTC闆婚樆">锛涚啽鏁忛浕闃绘牴鎿�(j霉)鍏舵潗璩�(zh矛)鐨勪笉鍚屽垎鐐猴細 闄剁摲PTC闆婚樆銆�鏈夋楂樺垎瀛怭TC闆婚樆
    PTC闆婚樆">锛涚啽鏁忛浕闃绘牴鎿�(j霉)鍏剁敤閫旂殑涓嶅悓鍒嗙偤锛�
    鑷嫊娑堢鐢≒TC闆婚樆
    寤舵檪鍟熷嫊鐢≒TC闆婚樆
    鎭掓韩鍔犵啽鐢≒TC闆婚樆
    閬庢祦淇濊鐢≒TC闆婚樆
    閬庣啽淇濊鐢≒TC闆婚樆
    鍌� 鎰� 鍣ㄧ敤PTC闆婚樆
    涓�鑸儏娉佷笅锛屾湁姗熼珮鍒嗗瓙PTC闆婚樆閬╁悎鍋剁埦閬庢祦淇濊鐢�(ch菐n)鍝佹垨绶氳矾鐢ㄩ�旓紝闄剁摲PTC闆婚樆閬╃敤浜庨牷绻侀亷娴佺殑鐢�(ch菐n)鍝佹垨绶氳矾浠ヤ笂鎵�鍒楀悇绋敤閫�.銆�
    楂樺垎瀛怭TC鐐洪亷娴�6000娆′互鍚庨樆鍊肩劇澶ぇ璁婂寲浠嶆湁PTC鏁堟噳(y墨ng)锛岄櫠鐡风殑鐐篜TC鐐洪亷娴�10钀浠ュ悗闃诲�肩劇澶ぇ璁婂寲浠嶆湁PTC鏁堟噳(y墨ng)銆�

浣滅敤

    PPTC鏄疨olymeric Positive Temperature Coefficient鐨勭府瀵紝PPTC鍣ㄤ欢鍗抽珮鍒嗗瓙鑱氬悎鐗╂婧害绯绘暩(sh霉)鍣ㄤ欢锛岃┎鍣ㄤ欢鑳藉湪闆绘祦娴秾閬庡ぇ銆佹韩搴﹂亷楂樻檪灏嶉浕璺捣淇濊浣滅敤銆備娇鐢ㄦ檪锛屽皣鍏朵覆鎺ュ湪闆昏矾涓�锛屽湪姝ｅ父鎯呮硜涓嬶紝鍏堕樆鍊煎緢灏�锛屾悕鑰椾篃寰堝皬锛屼笉褰遍熆闆昏矾姝ｅ父宸ヤ綔锛涗絾鑻ユ湁閬庢祦锛堝鐭矾锛夌櫦(f膩)鐢燂紝鍏舵韩搴﹀崌楂�锛屽畠鐨勯樆鍊奸毃涔嬫�ュ妵鍗囬珮锛岄仈鍒伴檺鍒堕浕娴佺殑浣滅敤锛岄伩鍏嶆悕澹為浕璺腑鐨勫厓鍣ㄤ欢銆傜暥(d膩ng)鏁呴殰鎺掗櫎鍚�锛孭PTC鍣ㄤ欢鐨勬韩搴﹁嚜鍕曚笅闄嶏紝鍙堟仮寰�(f霉)鍒颁綆闃荤媭鎱�(t脿i)锛屽洜姝PTC鍣ㄤ欢鍙堢ū鐐哄彲寰�(f霉)鎬т繚闅挡銆�

宸ヤ綔鍘熺悊

    鑷仮寰�(f霉)淇濋毆绲叉槸鐢遍珮鍒嗗瓙鏉愭枡娣诲姞灏�(d菐o)闆荤矑瀛愬埗鎴� 鍏跺熀鏈師鐞嗘槸涓�绋兘閲忕殑骞宠　锛岀暥(d膩ng)闆绘祦娴侀亷鍏冧欢鏅傜敘(ch菐n)鐢熺啽閲忥紝鎵�鐢�(ch菐n)鐢熺殑鐔遍噺涓�閮ㄥ垎鏁ｇ櫦(f膩)鍒扮挵(hu谩n)澧冧腑鍘�锛屼竴閮ㄥ垎澧炲姞浜嗛珮鍒嗗瓙鏉愭枡鐨勬韩搴�.鍦ㄥ伐浣滈浕娴佷笅锛岀敘(ch菐n)鐢熺殑鐔遍噺鍜屾暎鐧�(f膩)鐨勭啽閲忛仈鍒板钩琛￠浕娴佸彲浠ユ甯搁�氶亷锛岀暥(d膩ng)閬庡ぇ闆绘祦閫氶亷鏅傦紝鍏冧欢鐢�(ch菐n)鐢熷ぇ閲忕殑鐔遍噺涓嶈兘鍙婃檪鐨勬暎鐧�(f膩)鍑哄幓锛屽皫(d菐o)鑷撮珮鍒嗗瓙鏉愭枡婧害涓婂崌锛岀暥(d膩ng)婧害閬斿埌鏉愭枡绲�(ji茅)鏅惰瀺鍖栨韩搴︽檪锛岄珮鍒嗗瓙鏉愭枡闆嗚仛鑶ㄨ劰锛岄樆鏂风敱灏�(d菐o)闆荤矑瀛愮祫鎴愮殑灏�(d菐o)闆婚�氳矾锛屽皫(d菐o)鑷撮浕闃昏繀閫熶笂鍗�锛岄檺鍒朵簡澶ч浕娴侀�氶亷锛屽緸鑰岃捣鍒伴亷娴佷繚璀蜂綔鐢�.
    PTC鐨勬噳(y墨ng)鐢�
    KT绯诲垪閬庨浕娴佷繚璀风敤楂樺垎瀛怭TC鐔辨晱闆婚樆鍣紙PPTC鐔辨晱闆婚樆锛�锛屽厜鐗囥�乀D銆佸付鐙�D/DL銆佸紩绶氬寘灏�銆佸紩绶氫笉鍖呭皝鍨�銆佸湏鐠�(hu谩n)銆佽〃闈㈣布瑁濆瀷绛夌郴鍒楃敘(ch菐n)鍝�銆傚叾涓啽鏁忛浕闃荤殑骞寸敓鐢�(ch菐n)閲忚秴閬�300锛�000锛�000鍙�锛岃┎绯诲垪鐢�(ch菐n)鍝佸叿鏈夐樆鍊肩┅(w臎n)瀹氥�佸畨鍏ㄦ�ч珮銆佸彲鑷嫊鎭㈠京(f霉)銆佽�愬挤闆绘祦鐗规�уソ銆佹仮寰�(f霉)鏅傞枔鐭強楂旂⿳灏�銆佹槗瀹夎绛夊劒(y艒u)榛�銆傜敘(ch菐n)鍝佹牴鎿�(j霉)涓嶅悓鐨勯瀹氬伐浣滈浕澹擄紙6V锝�600V锛�銆佸伐浣滈浕娴侊紙40mA锝�14A锛夊強瀹夎鏂瑰紡绛夊叡鍒嗙偤鍗佸咕澶ч锛屽唬娉涚敤浜庨浕鑵�銆侀�氳▕銆佹秷璨绘�ч浕瀛�銆佹苯杌�銆侀�氳矾銆佹暩(sh霉)瀛楀収(n猫i)瀹�銆侀浕婧愩�佸皬瀹堕浕绛�6C鐢�(ch菐n)妤�(y猫)闋�(l菒ng)鍩熶腑鐨勯浕璺繚璀�
    1銆佹噳(y墨ng)鐢ㄥ湪閫氫俊琛屾キ(y猫)锛氬寘鎷琁EEE 802.3锛屼互澶恫(w菐ng)LAN IEEE 锛�1394 iLINK锛岀附閰嶇窔鏋朵繚瀹夊柈鍏冿紝鐭窛闆�/鍏�(n猫i)閮ㄤ繚璀疯姹�锛岀敤鎴剁祩绔ō(sh猫)鍌�锛岀敤2Pro妯＄祫淇濊鐢ㄦ埗绲傜瑷�(sh猫)鍌欓姣旂窔璺崱锛孴1/E1瑷�(sh猫)鍌�锛孖SDN瑷�(sh猫)鍌�锛孉DSL瑷�(sh猫)鍌�锛孒DSL瑷�(sh猫)鍌�锛孧DF妯＄祫/鍒濈礆鍜屾绱氫繚璀锋湁绶氶浕瑭�/闆绘簮鍒嗘鍣ㄧ簻绶歅BX鍜屾寜閸靛紡闆昏┍绯荤当(t菕ng)POS瑷�(sh猫)鍌�銆�
    2銆佹噳(y墨ng)鐢ㄥ湪闆绘睜琛屾キ(y猫)锛毬�
    鏁�(sh霉)纰奸浕姹犵祫
    绉诲嫊闆昏┍闆绘睜绲�
    鐒＄窔闆昏┍闆绘睜绲�
    路 绉诲嫊鐒＄窔寤ｆ挱闆绘睜绲�
    路 绛嗚鍨嬮浕鑵﹂浕姹犵祫
    路 鍙敎寮忛寗褰辨闆绘睜绲�
    路 闅ㄨ韩鑱介浕姹犵祫
    路 闆绘簮宸ュ叿锛堝厖闆荤窔锛�
    3銆佹噳(y墨ng)鐢ㄥ湪鍔犵啽鍣ㄦ柟闈�
    瓒虫荡鐩嗙殑鎭掓韩鍔犵啽鍣�
    4銆佹噳(y墨ng)鐢ㄥ湪鍦版殩鏂归潰
    纰虫鐔辫粚闆诲湴鏆栨潗鏂�
    PTC琛�(sh霉)瑾�
    椤嶅畾闆跺姛鐜囬浕闃� R25
    闆跺姛鐜囬浕闃�,鏄寚鍦ㄦ煇涓�婧害涓嬫脯閲廝TC鐔辨晱闆婚樆鍊兼檪,鍔犲湪PTC鐔辨晱闆婚樆涓婄殑鍔熻�楁サ浣�,浣庡埌鍥犲叾鍔熻�楀紩璧风殑PTC鐔辨晱闆婚樆鐨勯樆鍊艰畩鍖栧彲浠ュ拷鐣ヤ笉瑷�. 椤嶅畾闆跺姛鐜囬浕闃绘寚鐠�(hu谩n)澧冩韩搴�25鈩冩浠朵笅娓緱鐨勯浂鍔熺巼闆婚樆鍊�.鏈�灏忛浕闃� Rmin鎸嘝TC鐔辨晱闆婚樆鍙互鍏锋湁鐨勬渶灏忕殑闆跺姛鐜囬浕闃诲��.
    灞呴噷婧害 Tc
    灏嶄簬PTC鐔辨晱闆婚樆鐨勬噳(y墨ng)鐢ㄤ締瑾�,闆婚樆鍊奸枊濮嬮櫋宄湴澧為珮鏅傜殑婧害鏄噸瑕佺殑,鎴戝�戝皣鍏跺畾缇╃偤灞呴噷婧害.灞呴噷婧害灏嶆噳(y墨ng)鐨凱TC鐔辨晱闆婚樆鐨勯浕闃籖Tc = 2*Rmin.
    婧害绯绘暩(sh霉) 伪
    PTC鐔辨晱闆婚樆鐨勬韩搴︾郴鏁�(sh霉)瀹氱京鐐烘韩搴﹁畩鍖栧皫(d菐o)鑷寸殑闆婚樆鐨勭浉灏嶈畩鍖�.濡傛灉婧害绯绘暩(sh霉)瓒婂ぇ,PTC鐔辨晱闆婚樆灏嶆韩搴﹁畩鍖栫殑鍙嶆噳(y墨ng)瓒婇潏鏁�.
    琛ㄩ潰婧害 Tsurf
    琛ㄩ潰婧害Tsurf鏄寚鐣�(d膩ng)PTC鐔辨晱闆婚樆鍦ㄨ(gu墨)瀹氱殑闆诲涓嬪苟涓旇垏鍛ㄥ湇鐠�(hu谩n)澧冮枔铏曚簬鐔卞钩琛＄媭鎱�(t脿i)宸查仈杓冮暦鏅傞枔鏅�,PTC鐔辨晱闆婚樆琛ㄩ潰鐨勬韩搴�.
    鍕曚綔闆绘祦 Ik
    娴侀亷PTC鐔辨晱闆婚樆鐨勯浕娴�,瓒充互浣縋TC鐔辨晱闆婚樆鑷啽婧崌瓒呴亷灞呴噷婧害,閫欐ǎ鐨勯浕娴佺ū鐐哄嫊浣滈浕娴�.鍕曚綔闆绘祦鐨勬渶灏忓�肩ū鐐烘渶灏忓嫊浣滈浕娴�.
    鍕曚綔鏅傞枔 ts
    鐠�(hu谩n)澧�25鈩冩浠朵笅,绲TC鐔辨晱闆婚樆鍔犱竴鍊嬭捣濮嬮浕娴�(淇濊瓑鏄嫊浣滈浕娴�),閫氶亷PTC鐔辨晱闆婚樆鐨勯浕娴侀檷浣庡埌璧峰闆绘祦鐨�50%鏅傜稉(j墨ng)姝风殑鏅傞枔灏辨槸鍕曚綔鏅傞枔.
    涓嶅嫊浣滈浕娴� INk
    娴侀亷PTC鐔辨晱闆婚樆鐨勯浕娴�,涓嶈冻浠ヤ娇PTC鐔辨晱闆婚樆鑷啽婧崌瓒呴亷灞呴噷婧害,閫欐ǎ鐨勯浕娴佺ū鐐轰笉鍕曚綔闆绘祦.鍕曚綔闆绘祦鐨勫�肩ū鐐轰笉鍕曚綔闆绘祦.
    闆绘祦 Imax
    闆绘祦鏄寚PTC鐔辨晱闆婚樆鐨勯浕娴佹壙鍙楄兘鍔�.瓒呴亷闆绘祦鏅侾TC鐔辨晱闆婚樆灏囨渻澶辨晥.
    娈樹綑闆绘祦 Ir
    娈樹綑闆绘祦鏄湪宸ヤ綔闆诲Vmax涓�,鐔卞钩琛＄媭鎱�(t脿i)涓嬬殑闆绘祦.
    宸ヤ綔闆诲 Vmax
    宸ヤ綔闆诲鏄寚鍦ㄨ(gu墨)瀹氱殑鐠�(hu谩n)澧冩韩搴︿笅,鍏佽ū鎸佺簩(x霉)鍦颁繚鎸佸湪PTC鐔辨晱闆婚樆涓婄殑闆诲.灏嶅悓涓�鐢�(ch菐n)鍝佽�岃█,鐠�(hu谩n)澧冩韩搴﹁秺楂�,宸ヤ綔闆诲鍊艰秺浣�.
    椤嶅畾闆诲 VN
    椤嶅畾闆诲鏄湪宸ヤ綔闆诲Vmax浠ヤ笅鐨勪緵闆婚浕澹�.閫氬父 Vmax = VN + 15%
    鎿婄┛闆诲 VD
    鎿婄┛闆诲鏄寚PTC鐔辨晱闆婚樆鐨勯浕澹撴壙鍙楄兘鍔�.PTC鐔辨晱闆婚樆鍦ㄦ搳绌块浕澹撲互涓婃檪灏囨渻琚搳绌胯�屽皫(d菐o)鑷村け鏁�.

閬稿瀷

    1 銆佸垪鍑鸿ō(sh猫)鍌欑窔璺笂瀵﹂殯鐨勫钩鍧囧伐浣滈浕娴両鍊煎強V鍊硷紙涓嶈�冩叜鐬枔闆绘祦锛�
    2 銆佹牴鎿�(j霉)I鍊笺�乂鍊煎拰鐢�(ch菐n)鍝侀鍒ュ強瀹夎鏂瑰紡閬告搰涓�绋甈TC绯诲垪鍏冧欢銆�
    3 銆佸鏋滆ō(sh猫)鍌欏収(n猫i)閮ㄧ挵(hu谩n)澧冩韩搴﹀ぇ浜�25搴�锛岃嚜寰�(f霉)淇濋毆绲查毃钁楁韩搴︾殑澧炲姞灏嶄簬閫氶亷鐨勯浕娴佹渻鏈夋姌娓�锛岀偤缍寔璨犺級姝ｅ父闆绘祦閫氶亷锛屼緷鎿�(j霉)鐩搁棞(gu膩n)鍏紡鐨勬姌娓涚巼鍙▓绠桰H銆�
    4銆� 鏍规摎(j霉)姝ラ 2 閬稿嚭鐨勯�㈠京(f霉)淇濋毆绲茬郴鍒楀厓浠�锛屽強姝ラ 3 鎵�瑷堢畻鍑虹殑IH鍊�锛屽湪鍏跺悗瑕�(gu墨)鏍艰〃涓伕鍑虹鍚堢殑鍏冧欢銆傞渶鐗瑰垾寮疯(di脿o)鐨勬槸锛岄伕鍑哄厓浠剁殑IH鍊煎繀闋堝ぇ浜庢垨绛変簬姝ラ 3 鎵�瑷堢畻鍑虹殑IH鍊笺�侷H=宸ヤ綔闆绘祦锛圛锛壝锋姌娓涙瘮鐜�
    5銆� 渚濇摎(j霉)閬稿嚭鐨勫厓浠朵究鍙湪灏嶆噳(y墨ng)鐨勫嫊浣滄檪闁撴洸绶氳〃涓皪鐓ф煡鍑虹暟甯搁浕娴佸�肩敘(ch菐n)鐢熸檪鐨勫嫊浣滄檪闁撱��
    6銆佹牴鎿�(j霉)瑷�(sh猫)鍌欐晠闅滅殑鐗规�т締閬告搰涓�娆惧悎閬╃殑PTC锛屾甯哥殑閬庨浕娴佸拰绶氳矾鐭矾鐢�(ch菐n)鐢熺殑闆绘祦澶у皬涓嶅悓锛屾墍浠TC鍨嬭櫉鐨勫ぇ灏忎篃瑕佹湁鎵�涓嶅悓銆�
    ptc鐨勫伐浣滅壒榛�
    甯告韩涓嬮樆鎶楃壒鍒ヤ綆銆侀珨绌嶅皬锛屽彲寤ｆ硾鎳�(y墨ng)鐢ㄤ簬鍚勭ó闆昏矾鍜岄浕鍣ㄧ殑閬庢祦淇濊锛屽苟鍙垎绶氬畨瑁�锛岄檺搴﹀湴淇濊姣忎竴姊濈窔璺殑瀹夊叏浣跨敤锛屽綄瑁滀簡閬庡幓闆嗕腑淇濊闆昏矾鐨勭己闄凤紝鑸囧偝绲�(t菕ng)浣跨敤鐨勪繚闅挡銆侀櫠鐡稰TC鏉愭枡銆侀噾灞墖绛夐亷娴佷繚璀峰櫒浠剁浉姣�锛岃┎鍣ㄤ欢鐗归粸濡備笅锛�
    1銆佸皪閬庤級闆绘祦鍙嶆噳(y墨ng)杩呴�燂紝鎬ц兘绌�(w臎n)瀹氬彲闈�锛�
    2銆佽�愭矕鎿婂姏寮�锛屼娇鐢ㄥ＝鍛介暦锛�
    3銆佺劇妤垫��锛屼氦鐩存祦閮藉彲鐢�锛�
    4銆佸彲鑷嫊鎭㈠京(f霉)锛�
    5銆佸伐浣滈浕娴佸彲閬旀暩(sh霉)鍗佸畨鍩癸紱
    6銆侀珨绌嶅皬锛屽彲鏍规摎(j霉)瀹㈡埗闇�瑕�锛屽姞宸ョ敓鐢�(ch菐n)鍚勭ó涓嶅悓褰㈢媭銆佽(gu墨)鏍肩殑鐢�(ch菐n)鍝�锛�
    7銆佷娇鐢ㄥ唬娉�锛屽彲鐢ㄤ簬寰浕姗�銆佹鍕曡粖闆昏矾銆侀煶闊胯ō(sh猫)鍌�銆侀�氳▕瑷�(sh猫)鍌�銆佸剙鍣ㄥ剙琛�銆侀浕姹犵祫浠躲�佸伐妤�(y猫)鎺у埗绯荤当(t菕ng)銆佽▓绠楁澶栧湇瑷�(sh猫)鍌欑瓑銆�

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缍韩闆诲瓙閫氾紝闆诲瓙鐭ヨ瓨锛屼竴鏌ョ櫨閫�锛�

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