白小组四肖三肖期期中

白小组四肖三肖期期中 > 新闻动态 > 产品知识 > LED驱动不工作原因分析
LED驱动不工作原因分析
2017-05-05 08:40:37

白小组四肖三肖期期中  ZUOWEILEDZHAOMINGZHONGDEGUANJIANBUJIAN,LED QUDONGQIDEPINZHIZHIJIEYINGXIANGDAOZHENGTIDENGJUDEKEKAOXINGJIWENDINGXING。BENWENCONG LED QUDONGDENGXIANGGUANJISHUJIKEHUYINGYONGJINGYANCHUFA,ZHENGLIFENXIDENGJUSHEJIJIYINGYONGZHONGZHUDUODESHIXIAOQINGKUANG。 

白小组四肖三肖期期中    JIBENSHANGKEYISHUO,LED QUDONGQIDEZHUYAOZUOYONGSHIJIANGSHURUDEJIAOLIUDIANYAYUANZHUANHUANWEISHUCHUDIANYAKESUI LED Vf ZHENGXIANGDAOTONGYAJIANGBIANHUADEDIANLIUYUAN:


  1、WEIKAOLVGONGLVYULIANGJIJIANGEYAOQIU

  一般情况下,LED 驱动器的标称功率是指额定环境、额定电压情况下测得的数据。考虑到不同客户会有不同的应用,多数 LED 驱动器供应商会在自家的产品规格书上提供功率降额曲线(常见的有负载 vs 环境温度降额曲线及负载 vs 输入电压降额曲线)。

  DANGHUANJINGWENDUDIYU 50℃ SHI,QUDONGQIYUNXU 100% MANZAI,DANGHUANJINGWENDUGAODA 70℃ SHI,QUDONGQIZHINENGJIANGEDAO 60% DEFUZAI,DANGHUANJINGWENDUZAI 50-70℃ ZHIJIANBIANHUASHI,QUDONGQIFUZAISUIWENDUSHANGSHENGERXIANXINGXIAJIANG。

白小组四肖三肖期期中  LANSEQUXIANZEBIAOSHI LED QUDONGQIZAISHURU 230Vac HUO 277Vac QINGKUANGXIA,QIFUZAISUIHUANJINGWENDUBIANHUADEGONGLVJIANGEQUXIAN,QIYUANLILEITONG。

  DANGSHURUDIANYAWEI 140Vac SHI,QUDONGQIDEFUZAIYUNXU 100% MANZAI,SUIZHESHURUDIANYAXIADIAO;RUOSHUCHUGONGLVBUBIAN,SHURUDIANLIUJIANGSHANGSHENG,DAOZHISHURUDUANSUNHAOJIADA,XIAOLVJIANGDI,QIJIANWENDUSHANGSHENG,GEBIEWENDUDIANJIANGKENENGCHAOBIAO,SHENZHIKENENGDAOZHIQIJIANSHIXIAO。

  DANGSHURUDIANYAXIAOYU 140Vac SHI,YAOQIUQUDONGQIDESHUCHUFUZAISUISHURUDIANYAJIANXIAOERXIANXINGJIANXIAO。KANDONGRUSHANGJIANGEQUXIANJIXIANGYINGYAOQIUHOU,XUANYONG LED QUDONGQISHIJIUYINGGAIGENJUSHIJISHIYONGSHIDEHUANJINGWENDUQINGKUANGJISHURUDIANYAQINGKUANG,ZONGHEKAOLVJIXUANZE,BINGSHIDANGLIUCHUJIANGEYULIANG。


  2、WEIKAOLVLEDDENGZHUVfBIANHUAFANWEI,DAOZHIDENGJUXIAOLVDI,SHENZHIGONGZUOBUWENDING

  LEDDENGJUFUZAIDUAN,YIBANYOURUOGANSHULIANGDELEDCHUANBING LIANZUCHENG,QIGONGZUODIANYA Vo=Vf*Ns,QIZHONG Ns BIAOSHI LED CHUANLIANSHULIANG。LED DE Vf SUIWENDUBIANDONGERBIANDONG,YIBANQINGKUANGXIA,ZAIYUANYINHENGDINGDIANLIUSHI,GAOWENSHI Vf BIANDI,DIWENSHI Vf BIANGAO。YINCI,GAOWENSHI LED DENGJUFUZAIGONGZUODIANYADUIYINGWEI VoL,DIWENSHI LED DENGJUFUZAIGONGZUODIANYADUIYINGWEI VoH。ZAIXUANYONG LED QUDONGQISHIXUKAOLVQUDONGQISHUCHUDIANYAFANWEIDAYU VoL~VoH。

白小组四肖三肖期期中  RUGUOXUANYONGDELEDQUDONGQIZUIDASHUCHUDIANYADIYU VoH,KENENGDAOZHIDIWENSHIDENGJUDEZUIDAGONGLVDABUDAOSHIJISUOXUGONGLV,RUGUOXUANYONGDE LED QUDONGQIZUIDIDIANYAGAOYUVoL,ZEGAOWENSHIKENENGQUDONGQISHUCHUCHAOCHUGONGZUOFANWEI,GONGZUOBUWENDING,DENGJUHUIYOUSHANSHUODENGQINGKUANG。

  DANZONGHECHENGBENJIXIAOLVKAOLV,BUNENGYIWEIZHUIQIU LED QUDONGQICHAOKUANSHUCHUDIANYAFANWEI:YINWEIQUDONGQIDIANYAZHIZAIMOUYIGEQUJIANSHI,QUDONGQIXIAOLVCAISHIZUIGAODE。CHAOGUOFANWEIHOUXIAOLV、GONGLVYINSHU(PF)DOUHUIBIANCHA,TONGSHIQUDONGQISHUCHUDIANYAFANWEISHEJITAIKUAN,ZEDAOZHICHENGBENSHENGGAO,XIAOLVWUFAYOUHUA。


白小组四肖三肖期期中  3、BULEJIELEDDEGONGZUOTEXING

  CENGYOUKEHUYAOQIUDENGJUSHURUGONGLVWEIGUDINGZHI,GUDING 5% WUCHA,ZHINENGZHENDUIMEIZHANDENGQUDIAOJIESHUCHUDIANLIUDADAOZHIDINGGONGLV。YOUYUBUTONGGONGZUOHUANJINGWENDU,JIDIANDENGSHIJIANBUTONG,MEIYIZHANDENGDEGONGLVHAISHIHUIYOUJIAODACHAYI。

  KEHUTICHUZHEIYANGDEYAOQIU,SUIRANYOUQISHICHANGTUIGUANGJISHANGWUYINSHUDEKAOLV。DANSHI,LED DEFUANTEXINGJUEDING LED QUDONGQIWEIHENGDINGDIANLIUYUAN,QISHUCHUDIANYASUI LED FUZAICHUANLIANDIANYA Vo BIANHUAERBIANHUA,ZAIQUDONGQIZHENGJIXIAOLVJIBENBUBIANDEQINGKUANGXIA,QISHURUGONGLVSUI Vo BIANHUA。

白小组四肖三肖期期中  TONGSHI,LED QUDONGQIZAIREPINGHENGHOUZHENGTIXIAOLVHUIYOUSUOSHANGSHENG,ZAIXIANGTONGSHUCHUGONGLVDETIAOJIANXIA,XIANGBIYUKAIJISHIKE,SHURUGONGLVHUIXIAJIANG。

白小组四肖三肖期期中  SUOYI,LED QUDONGQIDEYINGYONGZHEZAINIDINGXUQIUSHI,YINGXIANLEJIE LED DEGONGZUOTEXING,BIMIANTICHUYIXIEBUFUHEGONGZUOTEXINGYUANLIDEZHIBIAO,TONGSHIBIMIANCHUXIANYUANCHAOSHIJIXUQIUDEZHIBIAO,BIMIANZHILIANGGUOSHENGHECHENGBENLANGFEI。


  4、CESHIZHONGSHIXIAO

  CENGJINGYOUKEHUCAIGOUGUOHENDUOPINPAIDE LED QUDONGQI,DANSHISUOYOUYANGPINDOUZAICESHIGUOCHENGZHONGSHIXIAO。HOULAIDAOXIANCHANGFENXIHOUFAXIAN,KEHUCAIYONGZIOUDIAOYAQIZHIJIEJI LED QUDONGQIGONGDIANJINXINGCESHI,SHANGDIANHOUJIANGDIAOYAQICONG 0Vac ZHUJIANSHANGDIAODAO LED QUDONGQIEDINGGONGZUODIANYA。

  ZHEIYANGDECESHICAOZUO,HENRONGYISHIDE LED QUDONGQIZAIHENXIAODESHURUDIANYASHIJIUQIDONGBINGDAIZAIGONGZUO,ERCIZHONGQINGKUANGHUIDAOZHISHURUDIANLIUYUANYUANDAYUEDINGZHI,NEIBUSHURUDUANXIANGGUANQIJIAN,RUBAOXIANSI、ZHENGLIUQIAO、REMINDIANZUDENGYINDIANLIUCHAOBIAOHUOGUOREERSHIXIAO,DAOZHIQUDONGQISHIXIAO。

  YINCIZHENGQUEDECESHIFANGFASHIJIANGDIAOYAQIDIAODAO LED QUDONGQIEDINGGONGZUODIANYAQUJIAN,ZAIJIESHANGQUDONGQISHANGDIANCESHI。

白小组四肖三肖期期中  DANGRAN,CONGJISHUSHANGGAISHANSHEJIYEKEYIGUIBICIZHONGCESHIWUCAOZUODAOZHIDESHIXIAOWENTI:ZAIQUDONGQISHURUDUANSHEZHIQIDONGDIANYAXIANZHIDIANLUJISHURUQIANYABAOHUDIANLU。DANGSHURUWEIDADAOQUDONGQISHEDINGDEQIDONGDIANYASHI,QUDONGQIBUGONGZUO;DANGSHURUDIANYAJIANGDIDAOSHURUQIANYABAOHUDIANSHI,QUDONGQIJINRUBAOHUZHUANGTAI。

白小组四肖三肖期期中  YINCI,JISHIKEHUCESHIGUOCHENGZHONGYIRANCAIYONGZIOUDIAOYAQIDECAOZUOBUZHOU,QUDONGQIJUBEIZIWOBAOHUGONGNENGERBUZHIYUSHIXIAO。DANSHIKEHUZAICESHIZHIQIANYIDINGYAOZIXILEJIESUOGOUDE LED QUDONGQICHANPINSHIFOUJUBEIZHEIXIANGBAOHUGONGNENG(KAOLVDAO LED QUDONGQIDESHIJIYINGYONGHUANJING,MUQIANDUOSHU LED QUDONGQIBUJUYOUCIXIANGBAOHUGONGNENG)。

  5、BUTONGFUZAI,CESHIJIEGUOBUTONG

白小组四肖三肖期期中  LED QUDONGQIDAI LED DENGCESHISHI,JIEGUOZHENGCHANG,DAIDIANZIFUZAICESHISHI,JIEGUOJIUKENENGYICHANG。TONGCHANGZHEIZHONGXIANXIANGYOUYIXIAYUANYIN:

白小组四肖三肖期期中  (1) QUDONGQIDESHUCHUSHUNJIANDIANYAHUOGONGLVCHAOCHUDIANZIFUZAIYIDEGONGZUOFANWEI。(YOUQIZAI CV MOSHIXIA,ZUIDACESHIGONGLVBUYINGCHAOGUOFUZAIZUIDAGONGLVDE 70%,FOUZEJIAZAISHIFUZAIKENENGHUISHUNJIANGUOGONGLVBAOHU,DAOZHIQUDONGQIWUFAZHENGCHANGGONGZUOHUOJIAZAI。)

白小组四肖三肖期期中  (2) SUOYONGDIANZIFUZAIYIDETEXINGBUSHIYONGYUCEHENGLIUYUAN,CHUXIANFUZAIDIANYADANGWEITIAOBIAN,DAOZHIQUDONGQIWUFAZHENGCHANGGONGZUOHUOJIAZAI。

  (3) YINWEIDIANZIFUZAIYIDESHURUNEIBUDOUHUIYOUYIGEDADEDIANRONG,CESHIJIUXIANGDANGYUZAIQUDONGQISHUCHUBINGLIANLEYIGEDADIANRONG,KENENGDAOZHIQUDONGQIDEDIANLIUCAIYANGGONGZUOCHUXIANBUWENDING。

  YINWEI LED QUDONGQISHEJIJIUSHIWEILEFUHE LED DENGJUGONGZUOTEXINGDE,ZUIJIEJINSHIJIYUZHENSHIYINGYONGDECESHIFANGSHIYINGGAISHIYONG LED DENGZHUZUOWEIFUZAI,CHUANSHANGDIANLIUBIAOJIDIANYABIAOLAICESHI。


  6、CHANGFASHENGDEYIXIAZHUANGKUANGHUIDAOZHILEDQUDONGQISUNHUAI:

  (1)JIANG AC JIEDAOLEQUDONGQIDE DC SHUCHUDUAN,DAOZHIQUDONGQISHIXIAO;

  (2)JIANG AC JIEDAOLE DC/DC QUDONGQIDESHURUHUOSHUCHU,DAOZHIQUDONGQISHIXIAO;

  (3)JIANGHENGLIUSHUCHUDUANYUDIAOGUANGXIANJIEDAOLEYIQI,DAOZHIQUDONGQISHIXIAO;

白小组四肖三肖期期中  (4)JIANGXIANGXIANJIEDAOLEDIXIANSHANG,DAOZHIQUDONGQIWUSHUCHUJIWAIQIAODAIDIAN;


  7、XIANGXIANJIECUO

  TONGCHANGHUWAIGONGCHENGYINGYONGDOUSHI 3 XIANGSIXIANZHI,YIGUOBIAOWEILI,MEIGEXIANGXIANYULINGXIANJIANDEEDINGGONGZUODIANYASHI 220Vac,XIANGXIANYUXIANGXIANJIANDEDIANYASHI 380Vac。RUGUOSHIGONGGONGRENJIANGQUDONGQISHURUDUANJIEDAOLIANGGENXIANGXIANSHANG,ZETONGDIANHOU,LED QUDONGQISHURUDIANYACHAOBIAODAOZHICHANPINSHIXIAO。

白小组四肖三肖期期中  DANGXIANLUSHANGLINGXIAN(N)RUTUDUANKAISHI,LIANGGEZHILUSHANGDEQUDONGQI R1,R2 XIANGDANGYUCHUANLIANHOUJIEDAO 380Vac DIANYASHANG。YINWEISHURUNEIZUCHAYI,DANGQIZHONGYIGEQUDONGQICHONGDIANDAOQIDONGSHI,NEIZUBIANXIAO,DIANYAKENENGDABUFENJIADAOLINGWAIYIGEQUDONGQISHANG,DAOZHIQIGUOYASUNHUAISHIXIAO。

白小组四肖三肖期期中  YINCIJIANYITONGYIPEIDIANZHILUSHANG,KAIGUANHUODUANLUQIYAOYIQIDUAN,BUNENGZHIDUANKAILINGXIAN。PEIDIANBAOXIANSIBUYAOFANGZAILINGXIANSHANG,XIANLUSHANGYAOBIMIANLINGXIANJIECHUBULIANG。


  8、QUDONGQISANRE

  DANGQUDONGQIANZHUANGZAIFEITONGFENGHUANJINGXIA,YINGGAIJINLIANGJIANGQUDONGQIWAIQIAOYUDENGJUWAIQIAOJIECHU,TIAOJIANYUNXUDEHUA,ZAIWAIQIAOYUDENGQIAODEJIECHUMIANSHANGTUDAOREJIAOHUOTIEDAOREDIAN,TIGAOQUDONGQIDESANREXINGNENG,CONGERBAOZHENGQUDONGQIDESHOUMINGJIKEKAOXING。


  9、XIANLUPINFANTIAOZHA

  TONGYIZHILUSHANGDEDENGJIEDETAIDUO,DAOZHIMOUYIXIANGDIANSHANGDEFUZAIGUOZAI,JIGEXIANGZHIJIANGONGLVFENBUBUJUN,CONGERZHISHIXIANLUPINFANTIAOZHA。


  10、DIANWANGBODONGFANWEICHAOCHUHELIFANWEI

白小组四肖三肖期期中  DANGTONGYIGEBIANYAQIDIANWANGZHILUPEIXIANTAIZHANG,ZHILUZHONGYOUDAXINGDONGLISHEBEISHI,ZAIDAXINGSHEBEIQITINGSHI,DIANWANGDIANYAHUIJULIEBODONG,SHENZHIDAOZHIDIANWANGBUWEN。DANGDIANWANGSHUNSHIDIANYACHAOGUO 310Vac SHIYOUKENENGSUNHUAIQUDONGQI(JISHIYOUFANGLEIZHUANGZHIYEWUXIAO,YINWEIFANGLEIZHUANGZHISHIYINGDUIJISHI uS JIBIEDEMAICHONGJIANFENG,ERDIANWANGBODONGKENENGDADAOJISHI mS,SHENZHIJIBAI mS )。

白小组四肖三肖期期中  YINCI,LUDENGZHAOMINGZHILUDIANWANGSHANGYOUDAXINGDIANLIJIXIESHIYAOTEBIEZHUYI,ZUIHAOJIANCEXIADIANWANGBODONGFUDU,HUODANDUDIANWANGBIANYAQIGONGDIAN。



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