銆愪竴鏂囦簡瑙ｉ浕瀹�1.72/Rt*Ct鍜�1.8/Rt*Ct銆�

UC3842鍣ㄤ欢瑕�(gu墨)鏍兼浉涓婇棞(gu膩n)浜庢尟钑╁櫒鐨勮鏄庡涓嬶細

涓嬮潰鐨勫湒鏄牴鎿�(j霉)涓婇潰鐨勮鏄庤€岀暙鍑虹殑锛�

鍘熺悊瑾槑锛�

闆诲Ct鐢盫REF缍�(j墨ng)Rt鍏呴浕锛屽厖闆昏嚦2.8V锛屽啀鐢盪C3842鍏�(n猫i)閮ㄧ殑涓€鍊�(g猫)Id鎭掓祦婧愶紙Id鐨勫€煎彲浠ュ湪3842瑕�(gu墨)鏍兼浉涓婃煡锛夌郸Ct鏀鹃浕锛屾斁闆昏嚦1.2V銆�

鎸暕鑵崇4鑵虫尝褰㈠涓嬶細

鐝�(xi脿n)鍦ㄦ垜鍊戝氨鏈夊绋柟娉曞彲浠ュ垪鍑哄厖闆诲強鏀鹃浕鏅�(sh铆)鐨勫叕寮忎簡

閫欓噷鏍规摎(j霉)姣旇純绨″柈鐨勪笁瑕佺礌娉曞垪鍑哄叕寮�

鍏呴浕鏅�(sh铆)锛�

閫欓噷蟿锛漅t*Ct

浠ｅ叆涓婇潰鐨勫叕寮忓彲寰楋細

鏀鹃浕鏅�(sh铆)锛氱敱浜庨浕瀹瑰湪閫氶亷鍏�(n猫i)閮ㄦ亽娴佹簮鏀鹃浕鐨勫悓鏅�(sh铆)涔熼€氶亷Rt鍦ㄥ厖闆伙紝濡備笅锛�

鍙緱鍒�

鐒跺悗鍙緸鎵嬪唺涓煡鍒癐d鐨勫€煎涓嬶細

Id鍙栧吀鍨嬪€�8.3mA灏卞彲浠�

涓嬮潰鎴戝€戜竴璧蜂締鑸夊€�(g猫)渚嬪瓙鐢ㄩ€欏€�(g猫)姣旇純绮剧⒑鐨勬柟寮忎締姣旇純涓€涓�

鎶婁笂闈㈢殑闂�(gu膩n)绯绘槸杓稿叆Mathcad涓�锛屽叾涓笉鍚岀殑鏄畾缇〤t=2.2n锛孯t浣滅偤涓€鍊�(g猫)璁婇噺锛屾垜鍊戜締鐪嬬湅Rt澶т簬5K鏅�(sh铆)鑸囧皬浜�5K鏅�(sh铆)渚嗗皪姣旂稉(j墨ng)椹�(y脿n)鍏紡寰楀埌鐨勭祼(ji茅)鏋�.

鍒嗗垾鐣嚭闋荤巼鍑芥暩(sh霉)琛ㄩ仈(d谩)寮忚垏璁婇噺Rt鐨勯棞(gu膩n)绯绘洸绶氬湒濡備笅

濡備笂鍦栨墍绀�锛屾墜绻磪绶氱偤Rt=5K鐨勫垎鐣岀窔锛岀暥(d膩ng)Rt锛�5K鏅�(sh铆)涓婇潰鐨勫叐鍊�(g猫)缍�(j墨ng)椹�(y脿n)鍏紡寰楅牷鐜囨洸绶氳垏瀵�(sh铆)闅涢牷鐜囨洸绶氳繎浼奸噸鍚堝熀鏈浉绛夛紝鐣�(d膩ng)Rt锛�5K鏅�(sh铆)缍�(j墨ng)椹�(y脿n)鍏紡闋荤巼鏇茬窔鑸囧(sh铆)闅涢牷鐜囨洸绶氱浉宸秺渚嗚秺澶�銆�

閭ｄ箞鎴戠浉淇″ぇ瀹跺熀鏈凡缍�(j墨ng)鏄庣櫧Rt鐐轰綍鏈変竴鍊�(g猫)锛�5K鐨勫墠鎻愭浠朵簡锛屽(sh铆)闅涗笂涓嶆槸蹇呴爤澶т簬5K锛屾槸澶т簬5K鏅�(sh铆)鐢ㄧ啊渚跨殑缍�(j墨ng)椹�(y脿n)鍏紡鏄劇娉曠畻鍑�3842鎸暕闋荤巼鐨�銆�

绱�(x矛)蹇冪殑鏈嬪弸鑲畾娉ㄦ剰鍒颁笂闈㈢殑鍏紡涓湁涓€鍊�(g猫)瑷�(j矛)绠楅枊鐠�(hu谩n)鍗犵┖姣旂殑鍏紡锛屼笅闈㈡垜鍊戜竴璧蜂締鐪嬩竴涓�锛岄枊鐠�(hu谩n)鍗犵┖姣旓紙鏈€澶у崰绌烘瘮锛夎垏Rt鐨勯棞(gu膩n)绯绘洸绶�锛屽涓嬪湒

涓嶉洠鐪嬪嚭鐣�(d膩ng)Rt鐨勯樆鍊艰秺灏忥紝3842/3鑺墖杓稿嚭鐨勬渶澶у崰绌烘瘮鍙檺鍒惰秺鍒拌秺浣�锛岄檺鍒舵渶澶у崰绌烘瘮灏嶄簬鍋氶枊鐠�(hu谩n)淇濊(h霉)鎴栨婵€闆昏矾鏄浉鐣�(d膩ng)鏈夌敤鐨勩€�

鍗犵┖姣旈檺鍒跺ぇ浜庡皬鐨勬尝褰㈠皪姣斿涓�