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可调台灯怎么接线图解

发布:泷伯嘉

ru tu suo shi wei si zhong liang du ke tiao de tai deng de dian lu shi yi tu , ta men suo yong de bai chi deng deng pao xiang tong , qie dou shi “2 2 0V 4 0W ". dang deng pao suo xiao hao de gong lv dou tiao zhi 2 0W shi , na zhong tai deng xiao hao de gong lv zui xiao ( ) bian ya qi dian ya 、dian liu 、dian gong lv yu za shu de guan xi cong gai ti ti gan de wen fa shang ke " qi zhong you yi gen shi huo xian ,yao jie jin dai you L biao shi de jie xian zhu shang ,yi gen shi ling xian ,yao yu dui ying dai you N biao shi de jie xian zhu xiang lian jie ,sheng yu yi gen shi di xian ,yao jie jin dai you E biao zhi de jie xian zhu shang ;zhu yi ru "

如为亮度可调台灯的电路示意图,其中AB是一根电阻丝,OP是滑动片,可绕O点旋转,P端与电阻丝接触良好.连接好电路后,滑片OP顺时转动时,流过灯泡L的电流变______(选填“大"或“小"),灯泡变______(选填“亮"或“暗").tiao guang tai deng de dian xing dian lu ru fu tu suo shi 。zhu dian lu you dian yuan kai guan S 、deng pao H 、shuang xiang ke kong gui S C R 、dian gan L deng gou cheng ; dian wei qi R P 1 ( wei tiao ) 、R P 2 ( dai kai guan ) 、dian zu R 1 、dian rong C 2 he shuang xiang er ji guan S D zu cheng shuang xiang ke kong gui de chu fa dian lu 。U C chong dian dian ya da dao shuang xiang er ji guan zheng fu dao tong dian ya yu zhi shi , chu fa shuang xiang kong gui S C R shuang xiang dao tong ; dang shu ru dian yuan dian ya guo ling shi , S C R zi dong guan duan 。tiao zheng dian wei qi zu zhi ke tiao zheng chong dian su lv , ji ke tiao zheng ke kong gui de dao tong jiao , cong er tiao jie deng guang de qiang ruo 。ling wai , L he C 1 gou cheng gao "

如图为亮度可调台灯的电路示意图,其中AB是一根电阻丝,B、C作开关使用,OP是滑动片,可绕0点旋转,P端与电阻丝接触良好. (1)将图中电路画完整. (2)连好电路后,滑片OP顺时转动时,流过灯泡L的电流变_填“大"或“小"),电灯变_填“亮"或“暗"). 答试题答解:(1)灯泡一端与A、O串联,电源的一端与C连接其中有一根是火线,要接进带有L标识的接线柱上,一根是零线,要与对应带有N标识的接线柱相连接,剩余一根是地线,要接进带有E标志的接线柱上;注意如

如为四种亮度可调的台灯的电路示意图,它们所用的白炽灯灯泡相同,且都是“220 V 40 W".当灯泡所消耗的功率都调至20 W时,哪种台灯消耗的功率最小( ) 变压器电压、电流、电功率与匝数的关系从该题题干的问法上可ru tu wei liang du ke tiao tai deng de dian lu shi yi tu , qi zhong A B shi yi gen dian zu si , B 、C zuo kai guan shi yong , O P shi hua dong pian , ke rao 0dian xuan zhuan , P duan yu dian zu si jie chu liang hao . ( 1 ) jiang tu zhong dian lu hua wan zheng . ( 2 ) lian hao dian lu hou , hua pian O P shun shi zhen zhuan dong shi , liu guo deng pao L de dian liu bian _ tian “da "huo “xiao ") , dian deng bian _ tian “liang "huo “an ") . da shi ti da an jie : ( 1 ) deng pao yi duan yu A 、O chuan lian , dian yuan de yi duan yu C lian jie

ru tu suo shi wei liang du ke tiao tai deng de dian lu shi yi tu , qi zhong A B shi yi gen dian zu si , O P shi hua dong pian , ke rao O dian xuan zhuan , P duan yu dian zu si jie chu liang hao . lian jie hao dian lu hou , hua pian O P shun shi zhen zhuan dong shi , liu guo deng pao L de dian liu bian _ _ _ _ _ _ ( xuan tian “da "huo “xiao ") , deng pao bian _ _ _ _ _ _ ( xuan tian “liang "huo “an ") . 调台灯的典型电路如附。主电路由电源开关S、灯泡H、双向可控硅SCR、电感L等构成;电位器RP1(微调)、RP2(带开关)、电阻R1、电容C2和双向二极管SD 组成双向可控硅的触发电路。UC充电电压达到双向二极管正负导通电压阈值时,触发双向控硅SCR双向导通;当输入电源电压过零时,SCR自动关断。调整电位器阻值可调整充电速率,即可调整可控硅的导通角,从而调节灯的强弱。另外,L和C1构成高

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