真牛论坛怎么了

PCB布局时如何摆放及安装去耦电容_pcb打样

time : 2019-04-28 15:18       作者:凡亿pcb

  DUIYUDIANRONGDEANZHUANG,SHOUXIANYAOTIDAODEJIUSHIANZHUANGJULI。RONGZHIZUIXIAODEDIANRONG,YOUZUIGAODEXIEZHENPINLV,QUOUBANJINGZUIXIAO,YINCIFANGZAIZUIKAOJINXINPIANDEWEIZHI。RONGZHISHAODAXIEDEKEYIJULISHAOYUAN,ZUIWAICENGFANGZHIRONGZHIZUIDADE。DANSHI,SUOYOUDUIGAIXINPIANQUOUDEDIANRONGDOUJINLIANGKAOJINXINPIAN。

  JIANFENGDIANLIUDEXINGCHENG

真牛论坛怎么了   SHUZIDIANLUSHUCHUGAODIANPINGSHICONGDIANYUANLACHUDEDIANLIUIohHEDIDIANPINGSHUCHUSHIGUANRUDEDIANLIUIolDEDAXIAOYIBANSHIBUTONGDE,JI:Iol>Ioh。YIXIATUDETTLYUFEIMENWEILISHUOMINGJIANFENGDIANLIUDEXINGCHENG:

  

电路

 

真牛论坛怎么了   SHUCHUDIANYARUSHANGTU(a)SUOSHI,LILUNSHANGDIANYUANDIANLIUDEBOXINGRUZHONGTU(b),ERSHIJIDEDIANYUANDIANLIUBAOXIANRUXIATU(c)。YOUTU(c)KEYIKANCHUZAISHUCHUYOUDIDIANPINGZHUANHUANDAOGAODIANPINGSHIDIANYUANDIANLIUYOUYIGEDUANZANERFUDUHENDADEJIANFENG。JIANFENGDIANYUANDIANLIUDEBOXINGSUISUOYONGQIJIANDELEIXINGHESHUCHUDUANSUOJIEDEDIANRONGFUZAIERYI。

  CHANSHENGJIANFENGDIANLIUDEZHUYAOYUANYIN

  SHUCHUJIDET3、T4GUANDUANSHEJINEITONGSHIDAOTONG。ZAIYUFEIMENYOUSHUCHUDIDIANPINGZHUANXIANGGAODIANPINGDEGUOCHENGZHONG,SHURUDIANYADEFUTIAOBIANZAIT2HET3DEJIJIHUILUNEICHANSHENGHENDADEFANXIANGQUDONGDIANLIU,YOUYUT3DEBAOHESHENDUSHEJIDEBIT2DA,FANXIANGQUDONGDIANLIUJIANGSHIT2SHOUXIANTUOLIBAOHEERJIEZHI。T2JIEZHIHOU,QIJIDIANJIDIANWEISHANGSHENG,SHIT4DAOTONG。KESHICISHIT3HAIWEITUOLIBAOHE,YINCIZAIJIDUANDESHEJINEIT3HET4JIANGTONGSHIDAOTONG,CONGERCHANSHENGHENDADEic4,SHIDIANYUANDIANLIUXINGCHENGJIANFENGDIANLIU。TUZHONGDER4ZHENGSHIWEILEXIANZHICIJIANFENGDIANLIUERSHEJI。

真牛论坛怎么了   DIGONGHAOXINGTTLMENDIANLUZHONGDER4JIAODA,YINCIQIJIANFENGDIANLIUJIAOXIAO。DANGSHURUDIANYAYOUDIDIANPINGBIANWEIGAODIANPINGSHI,YUFEIMENSHUCHUDIANPINGYOUGAOBIANDI,ZHEISHIT3、T4YEKENENGTONGSHIDAOTONG。DANDANGT3KAISHIJINRUDAOTONGSHI,T4CHUYUFANGDAZHUANGTAI,LIANGGUANDEJI-SHEJIANDIANYAJIAODA,GUSUOCHANSHENGDEJIANFENGDIANLIUJIAOXIAO,DUIDIANYUANDIANLIUCHANSHENGDEYINGXIANGXIANGDUIJIAOXIAO。

真牛论坛怎么了   CHANSHENGJIANFENGDIANLIUDELINGYIGEYUANYINSHIFUZAIDIANRONGDEYINGXIANG。YUFEIMENSHUCHUDUANSHIJISHANGCUNZAIFUZAIDIANRONGCL,DANGMENDESHUCHUYOUDIZHUANHUANDAOGAOSHI,DIANYUANDIANYAYOUT4DUIDIANRONGCLCHONGDIAN,YINCIXINGCHENGJIANFENGDIANLIU。

  DANGYUFEIMENDESHUCHUYOUGAODIANPINGZHUANHUANDAODIDIANPINGSHI,DIANRONGCLTONGGUOT3FANGDIAN。CISHIFANGDIANDIANLIUBUTONGGUODIANYUAN,GUCLDEFANGDIANDIANLIUDUIDIANYUANDIANLIUWUYINGXIANG。

  JIANFENGDIANLIUDEYIZHIFANGFA

  1、ZAIDIANLUBANBUXIANSHANGCAIQUCUOSHI,SHIXINHAOXIANDEZASANDIANRONGJIANGDAOZUIXIAO;

  2、LINGYIZHONGFANGFASHISHEFAJIANGDIGONGDIANDIANYUANDENEIZU,SHIJIANFENGDIANLIUBUZHIYUYINQIGUODADEDIANYUANDIANYABODONG;

真牛论坛怎么了   3、TONGCHANGDEZUOFASHISHIYONGQUOUDIANRONGLAILVBO,YIBANSHIZAIDIANLUBANDEDIANYUANRUKOUCHUFANGYIGE1uF~10uFDEQUOUDIANRONG,LVCHUDIPINZAOSHENG;ZAIDIANLUBANNEIDEMEIYIGEYOUYUANQIJIANDEDIANYUANHEDIZHIJIANFANGZHIYIGE0.01uF~0.1uFDEQUOUDIANRONG(GAOPINLVBODIANRONG),YONGYULVCHUGAOPINZAOSHENG。LVBODEMUDESHIYAOLVCHUDIEJIAZAIDIANYUANSHANGDEJIAOLIUGANRAO,DANBINGBUSHISHIYONGDEDIANRONGRONGLIANGYUEDAYUEHAO,YINWEISHIJIDEDIANRONGBINGBUSHILIXIANGDIANRONG,BUJUBEILIXIANGDIANRONGDESUOYOUTEXING。

  QUOUDIANRONGDEXUANQUKEANC=1/FJISUAN,QIZHONGFWEIDIANLUPINLV,JI10MHzQU0.1uF,100MHzQU0.01uF。YIBANQU0.1~0.01uFJUNKE。

真牛论坛怎么了   FANGZHIZAIYOUYUANQIJIANPANGDEGAOPINLVBODIANRONGDEZUOYONGYOULIANGGE,QIYISHILVCHUYANDIANYUANCHUANDAOGUOLAIDEGAOPINGANRAO,QIERSHIJISHIBUCHONGQIJIANGAOSUGONGZUOSHISUOXUDEJIANFENGDIANLIU。SUOYIDIANRONGDEFANGZHIWEIZHISHIXUYAOKAOLVDE。

  SHIJIDEDIANRONGYOUYUCUNZAIJISHENGCANSHU,KEDENGXIAOWEICHUANLIANZAIDIANRONGSHANGDEDIANZUHEDIANGAN,JIANGQICHENGWEIDENGXIAOCHUANLIANDIANZU(ESR)HEDENGXIAOCHUANLIANDIANGAN(ESL)。ZHEIYANG,SHIJIDEDIANRONGJIUSHIYIGECHUANLIANXIEZHENDIANLU,QIXIEZHENPINLVWEI:

  

公式

 

真牛论坛怎么了   SHIJIDEDIANRONGZAIDIYUFrDEPINLVCHENGXIANRONGXING,ERZAIGAOYUFrDEPINLVSHANGZECHENGXIANGANXING,SUOYIDIANRONGGENGXIANGSHIYIGEDAIZULVBOQI。

真牛论坛怎么了   10uFDEDIANJIEDIANRONGYOUYUQIESLJIAODA,FrXIAOYU1MHz,DUIYU50HzZHEIYANGDEDIPINZAOSHENGYOUJIAOHAODELVBOXIAOGUO,DUISHANGBAIZHAODEGAOPINKAIGUANZAOSHENGZEMEIYOUSHENMEZUOYONG。

真牛论坛怎么了   DIANRONGDEESRHEESLSHIYOUDIANRONGDEJIEGOUHESUOYONGDEJIEZHIJUEDINGDE,ERBUSHIDIANRONGLIANG。TONGGUOSHIYONGGENGDARONGLIANGDEDIANRONGBINGBUNENGTIGAOYIZHIGAOPINGANRAODENENGLI,TONGLEIXINGDEDIANRONG,ZAIDIYUFrDEPINLVXIA,DARONGLIANGDEBIXIAORONGLIANGDEZUKANGXIAO,DANRUGUOPINLVGAOYUFr,ESLJUEDINGLELIANGZHEDEZUKANGBUHUIYOUSHENMEQUBIE。

  DIANLUBANSHANGSHIYONGGUODUODEDARONGLIANGDIANRONGDUIYULVCHUGAOPINGANRAOBINGMEIYOUSHENMEBANGZHU,TEBIESHISHIYONGGAOPINKAIGUANDIANYUANGONGDIANSHI。LINGYIGEWENTISHI,DARONGLIANGDIANRONGGUODUO,ZENGJIALESHANGDIANJIRECHABADIANLUBANSHIDUIDIANYUANDECHONGJI,RONGYIYINQIRUDIANYUANDIANYAXIADIE、DIANLUBANJIECHAJIANDAHUO、DIANLUBANNEIDIANYASHANGSHENGMANDENGWENTI。

  PCBBUJUSHIQUOUDIANRONGBAIFANG

  DUIYUDIANRONGDEANZHUANG,SHOUXIANYAOTIDAODEJIUSHIANZHUANGJULI。RONGZHIZUIXIAODEDIANRONG,YOUZUIGAODEXIEZHENPINLV,QUOUBANJINGZUIXIAO,YINCIFANGZAIZUIKAOJINXINPIANDEWEIZHI。RONGZHISHAODAXIEDEKEYIJULISHAOYUAN,ZUIWAICENGFANGZHIRONGZHIZUIDADE。DANSHI,SUOYOUDUIGAIXINPIANQUOUDEDIANRONGDOUJINLIANGKAOJINXINPIAN。

  XIATUJIUSHIYIGEBAIFANGWEIZHIDELIZI。BENLIZHONGDEDIANRONGDENGJIDAZHIZUNXUN10BEIDENGJIGUANXI。

  

电容

 

  HAIYOUYIDIANYAOZHUYI,ZAIFANGZHISHI,ZUIHAOJUNYUNFENBUZAIXINPIANDESIZHOU,DUIMEIYIGERONGZHIDENGJIDOUYAOZHEIYANG。TONGCHANGXINPIANZAISHEJIDESHIHOUJIUKAOLVDAOLEDIANYUANHEDIYINJIAODEPAILIEWEIZHI,YIBANDOUSHIJUNYUNFENBUZAIXINPIANDESIGEBIANSHANGDE。YINCI,DIANYARAODONGZAIXINPIANDESIZHOUDOUCUNZAI,QUOUYEBIXUDUIZHENGGEXINPIANSUOZAIQUYUJUNYUNQUOU。RUGUOBASHANGTUZHONGDE680pFDIANRONGDOUFANGZAIXINPIANDESHANGBU,YOUYUCUNZAIQUOUBANJINGWENTI,NEIMEJIUBUNENGDUIXINPIANXIABUDEDIANYARAODONGHENHAODEQUOU。

  DIANRONGDEANZHUANG

真牛论坛怎么了   ZAIANZHUANGDIANRONGSHI,YAOCONGHANPANLACHUYIXIAODUANYINCHUXIAN,RANHOUTONGGUOGUOKONGHEDIANYUANPINGMIANLIANJIE,JIEDIDUANYESHITONGYANG。ZHEIYANGLIUJINGDIANRONGDEDIANLIUHUILUWEI:DIANYUANPINGMIAN——GUOKONG——YINCHUXIAN——HANPAN——DIANRONG——HANPAN——YINCHUXIAN——GUOKONG——DIPINGMIAN,XIATUZHIGUANDEXIANSHILEDIANLIUDEHUILIULUJING。

  

电容

 

  DIYIZHONGFANGFACONGHANPANYINCHUHENZHANGDEYINCHUXIANRANHOULIANJIEGUOKONG,ZHEIHUIYINRUHENDADEJISHENGDIANGAN,YIDINGYAOBIMIANZHEIYANGZUO,ZHEISHIZUIZAOGAODEANZHUANGFANGSHI。

真牛论坛怎么了   DIERZHONGFANGFAZAIHANPANDELIANGGEDUANDIANJINLINHANPANDAKONG,BIDIYIZHONGFANGFALUMIANJIXIAODEDUO,JISHENGDIANGANYEJIAOXIAO,KEYIJIESHOU。

真牛论坛怎么了   DISANZHONGZAIHANPANCEMIANDAKONG,JINYIBUJIANXIAOLEHUILUMIANJI,JISHENGDIANGANBIDIERZHONGGENGXIAO,SHIBIJIAOHAODEFANGFA。

真牛论坛怎么了   DISIZHONGZAIHANPANLIANGCEDOUDAKONG,HEDISANZHONGFANGFAXIANGBI,XIANGDANGYUDIANRONGMEIYIDUANDOUSHITONGGUOGUOKONGDEBINGLIANJIERUDIANYUANPINGMIANHEDIPINGMIAN,BIDISANZHONGJISHENGDIANGANGENGXIAO,ZHIYAOKONGJIANYUNXU,JINLIANGYONGZHEIZHONGFANGFA。

真牛论坛怎么了   ZUIHOUYIZHONGFANGFAZAIHANPANSHANGZHIJIEDAKONG,JISHENGDIANGANZUIXIAO,DANSHIHANJIESHIKENENGHUICHUXIANWENTI,SHIFOUSHIYONGYAOKANJIAGONGNENGLIHEFANGSHI。

  TUIJIANSHIYONGDISANZHONGHEDISIZHONGFANGFA。

  XUYAOQIANGDIAOYIDIAN:YOUXIEGONGCHENGSHIWEILEJIESHENGKONGJIAN,YOUSHIRANGDUOGEDIANRONGSHIYONGGONGGONGGUOKONG,RENHEQINGKUANGXIADOUBUYAOZHEIYANGZUO。ZUIHAOXIANGBANFAYOUHUADIANRONGZUHEDESHEJI,JIANSHAODIANRONGSHULIANG。

  YOUYUYINZHIXIANYUEKUAN,DIANGANYUEXIAO,CONGHANPANDAOGUOKONGDEYINCHUXIANJINLIANGJIAKUAN,RUGUOKENENG,JINLIANGHEHANPANKUANDUXIANGTONG。ZHEIYANGJISHISHI0402FENGZHUANGDEDIANRONG,NIYEKEYISHIYONG20milKUANDEYINCHUXIAN。YINCHUXIANHEGUOKONGANZHUANGRUTU5SUOSHI,ZHUYITUZHONGDEGEZHONGCHICUN。

  

30