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如何調試開關電源電路

如何調試開關電源電路?

  YOUYIXIEJINGYANKEYIGONGXIANGGEIDAJIA:(1)DIANYUANDIANLUDESHUCHUTONGGUODIZUZHIDAGONGLVDIANZUJIEDAOBANNEI,ZHEYANGZAIBUHANDIANZUDEQINGKUANGXIAKEYIXIANZUODAODIANYUANDIANLUDEXIANDIAOSHI,BIKAIHOUMIANDIANLUDEYINGXIANG。(2)YIBANLAISHUOKAIGUANKONGZHIQISHIBIHUANXITONG,RUGUOSHUCHUEHUADEQINGKUANGCHAOGUOLEBIHUANKEYIKONGZHIDEFANWEI,KAIGUANDIANYUANJIUHUIGONGZUOBUZHENGCHANG,SUOYIZHEZHONGQINGKUANGJIUXUYAORENZHENJIANCHAFANKUIHECAIYANGDIANLU。TEBIESHIRUGUOCAIYONGLEDAESRZHIDESHUCHUDIANRONG,HUICHANSHENGHENDUODEDIANYUANWENBO,ZHEYEHUIYINGXIANGKAIGUANDIANYUANDEGONGZUODE。

  為什么要接地?

官方彩票app  JIEDIJISHUDEYINRUZUICHUSHIWEILEFANGZHIDIANLIHUODIANZIDENGSHEBEIZAOLEIJIERCAIQUDEBAOHUXINGCUOSHI,MUDESHIBALEIDIANCHANSHENGDELEIJIDIANLIUTONGGUOBILEIZHENYINRUDAODADI,CONGERQIDAOBAOHUJIANZHUWUDEZUOYONG。TONGSHI,JIEDIYESHIBAOHURENSHENANQUANDEYIZHONGYOUXIAOSHOUDUAN,DANGMOUZHONGYUANYINYINQIDEXIANGXIAN(RUDIANXIANJUEYUANBULIANG,XIANLULAOHUADENG)HESHEBEIWAIKEPENGCHUSHI,SHEBEIDEWAIKEJIUHUIYOUWEIXIANDIANYACHANSHENG,YOUCISHENGCHENGDEGUZHANGDIANLIUJIUHUILIUJINGPEXIANDAODADI,CONGERQIDAOBAOHUZUOYONG。SUIZHUDIANZITONGXINHEQITASHUZILINGYUDEFAZHAN,ZAIJIEDIXITONGZHONGZHIKAOLVFANGLEIHEANQUANYIYUANYUANBUNENGMANZUYAOQIULE。BIRUZAITONGXINXITONGZHONG,DALIANGSHEBEIZHIJIANXINHAODEHULIANYAOQIUGESHEBEIDOUYAOYOUYIGEJIZHUN‘DI’ZUOWEIXINHAODECANKAODI。ERQIESUIZHUDIANZISHEBEIDEFUZAHUA,XINHAOPINLVYUELAIYUEGAO,YINCI,ZAIJIEDISHEJIZHONG,XINHAOZHIJIANDEHURAODENGDIANCIJIANRONGWENTIBIXUGEIYUTEBIEGUANZHU,FOUZE,JIEDIBUDANGJIUHUIYANZHONGYINGXIANGXITONGYUNXINGDEKEKAOXINGHEWENDINGXING。ZUIJIN,GAOSUXINHAODEXINHAOHUILIUJISHUZHONGYEYINRULE“DI”DEGAINIAN。

  接地的定義

  ZAIXIANDAIJIEDIGAINIANZHONG、DUIYUXIANLUGONGCHENGSHILAISHUO,GAISHUYUDEHANYITONGCHANGSHI“XIANLUDIANYADECANKAODIAN”;DUIYUXITONGSHEJISHILAISHUO,TACHANGCHANGSHIJIJUHUOJIJIA;DUIDIANQIGONGCHENGSHILAISHUO,TASHILVSEANQUANDIXIANHUOJIEDAODADIDEYISI。YIGEBIJIAOTONGYONGDEDINGYISHI“JIEDISHIDIANLIUFANHUIQIYUANDEDIZUKANGTONGDAO”。ZHUYIYAOQIUSHI“DIZUKANG”HE“TONGLU”。

  常見的接地符號

  PE、PGND、FG-BAOHUDIHUOJIKE;BGNDHUODC-RETURN-ZHILIU-48V(+24V)DIANYUAN(DIANCHI)HUILIU;GND-GONGZUODI;DGND-SHUZIDI;AGND-MONIDI;LGND-FANGLEIBAOHUDI。

  合適的接地方式

官方彩票app  JIEDIYOUDUOZHONGFANGSHI,YOUDANDIANJIEDI,DUODIANJIEDIYIJIHUNHELEIXINGDEJIEDI。ERDANDIANJIEDIYOUFENWEICHUANLIANDANDIANJIEDIHEBINGLIANDANDIANJIEDI。YIBANLAISHUO,DANDIANJIEDIYONGYUJIANDANDIANLU,BUTONGGONGNENGMOKUAIZHIJIANJIEDIQUFEN,YIJIDIPIN(f10MHz)DIANLUSHIJIUYAOCAIYONGDUODIANJIEDILEHUOZHEDUOCENGBAN(WANZHENGDEDIPINGMIANCENG)。

 

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