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電源模塊的前端防浪涌電路若何設想?
 

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  YI、LANGYONGDIANYALAILI

  1、LEIJIYINFADELANGYONG,DANGFASHENGLEIJISHI,TONGXINDIANLUHUIFASHENGGANDAO,GOUCHENGLANGYONGDIANYAHUODIANLIU;

  2、TIXILIYONGZHONGFUZAIDEQIEHUANJIDUANLUMAOBINGYEHUIYINFALANGYONG;

  3、QIYUZHUANGBEIPINRENGKAIGUANJIYINFADEGAOPINLANGYONGDIANYA。

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  SAN、LANGYONGCESHIGUIFAN

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  GAIGUIFANDESHIYANPINJIFENLEIYIXIA:

  

電源模塊防浪涌電路應若何設想

  BIAO1 SHIYANPINJI

  SI、LANGYONGFANGHUDIANLU

  YINWEIDIANYUANMOKUAITIJIXIAO,ZAIEMCQINGQIUBINIGAODECHANGSUO,XUYAOZENGTIANEDINGDELANGYONGFANGHUDIANLU,YIJINSHENGTIXIEMCJINENG,JINBUCHANWUDEKAODEZHUXING。RUTU2SUOSHI,WEIJINBUSHUCHUJIDELANGYONGFANGHUCAINENG,ZAIHEXINZENGTIANLEYAMINDIANZUHETVSGUAN。DANTUZHONGDEDIANLU(a)、(b)YUANMUBIAOSHIXIANGWANCHENGLIANGJIFANGHU,DANNENGGOUBAMIAOZHUCHANG。RUOSHI(a)ZHONGMOV2DEYAMINDIANYAHETONGLIUCAINENGBIMOV1DI,ZAIQIANGJIAORAOCHANGSUO,MOV2NENGGOUMEIFAMENGSHOULANGYONGDAJIERTIZAOPOHUAI,ZHISHIQUANBUTIXITANHUAN。YIYANGDE,DIANLU(b),YINWEITVSHUYINGSULVBIMOVKUAI,CHANGCHANGSHIMOVWEIQIGANHUA,ERTVSGUOZAOPOHUAI。YISHIZHUNQUEDEJIEFAPUTONGSHIRUTU(c)、(d)SUOSHI,ZAILIANGGEMOVHUOSHIMOVHETVSZHIZHIJIEYIGEDIANGAN。

  

電源模塊防浪涌電路應若何設想

  TU2 LIANGJILANGYONGFANGHU

  如圖3所示,能夠在MOV和TVS之間加一個電阻,能夠避免TVS先導通到破壞,而MOV還沒來得及舉措;在拔取R的時辰要斟酌R的功耗,以避免R先破壞;同時能夠并聯電容,接收能量,進步抗浪涌才能;MOV和TVS的選型很關頭,挑選恰當的最大許可電壓和最大通流量很主要,這個就要參照電源模塊的輸出電壓和浪涌實驗品級,若是電壓挑選小了后端供電不一般,挑選大了起不到掩護感化,電源模塊通流量選小了器件輕易破壞。保舉瀏覽:電源模塊同步整流與低功耗化功效

 
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