开心快3

控制板系统方案开发的抗干扰设计

RIQI:2018-05-26 / RENQI: / LAIYUAN:eecqu.com

干扰源类型及对控制板系统的干扰

1. 来自空间的辐射干扰

KONGJIANDEFUSHEDIANCICHANGZHUYAOLAIZIDIANLIWANGLUO、LEIDIAN、WUXIANDIANGUANGBO、DIANSHI、LEIDA、GAOPINGANYINGJIARESHEBEI,QIFENBUJIWEIFUZA。RUOKONGZHIBANXITONGZHIYUSUOSHEPINCHANGNEI。JIUHUISHOUDAOFUSHEGANRAO,QIYINGXIANGZHUYAOTONGGUOLIANGTIAOLUJING:YISHIDUIKONGZHIBANTONGXINWANGLUODEFUSHE,YOUTONGXINXIANLUDEGANYINGYINRENGANRAO;ERSHIZHIJIEDUIKONGZHIBANNEIBUDEFUSHE,YOUDIANLUGANYINGCHANSHENGGANRAO。

2. 来自系统外引线的干扰

a. 来自电源的干扰

开心快3 KONGZHIBANXITONGDEZHENGCHANGGONGDIANDIANYUANJUNYOUDIANWANGGONGDIAN。YOUYUDIANWANGFUGAIFANWEIGUANG,TAJIANGSHOUDAOSUOYOUKONGJIANDIANCIGANRAOERZAIXIANLUSHANGGANYINGCHUDIANYAHEDIANLIU。YOUQISHIDIANWANGNEIBUDEBIANHUA,KAIGUANCAOZUOLANGYONG、DAXINGDIANLISHEBEIQITING、DIANWANGDUANLUZANTAICHONGJIDENG,DOUTONGGUOSHUDIANXIANLUCHUANDAODIANYUAN。KONGZHIBANDIANYUANTONGCHANGCAIYONGGELIDIANYUAN,DANQIJIGOUJIZHIZAOGONGYIYINSUSHIQIGELIXINGBINGBULIXIANG。

b. 来自信号线引入的干扰

开心快3 KONGZHIBANXITONGLIANJIEDEGELEIXINHAOCHUANSHUXIAN,CHULECHUANSHUYOUXIAODEGELEIXINXIZHIWAI,ZONGHUIYOUWAIBUGANRAOXINHAOQINRU。CIGANRAOZHUYAOYOULIANGZHONGTUJING:YISHITONGGUOBIANSONGQIGONGDIANDIANYUANHUOGONGYONGXINHAOYIBIAODEGONGDIANDIANYUANCHUANRUDEDIANWANGGANRAO;ERSHIXINHAOXIANSHOUKONGJIANDIANCIFUSHEGANYINGDEGANRAO,JIXINHAOXIANSHANGDEWAIBUGANYINGGANRAO,ZHEISHIHENYANZHONGDE。YOUXINHAOYINRUGANRAOHUIYINQIvoXINHAOGONGZUOYICHANGHECELIANGJINGDUDEJIANGDI,YANZHONGSHIJIANGYINQIYUANQIJIANSUNSHANG。DUIYUGELIXINGNENGCHADEXITONG,HAIJIANGDAOZHIXINHAOJIANHUXIANGGANRAO,YINQIGONGDIXITONGZONGXIANHUILIU,ZAOCHENGLUOJISHUJUBIANHUA、WUDONGHESIJI。

c. 来自接地系统混乱时的干扰

开心快3 JIEDISHITIGAODIANZISHEBEIDIANCIJIANRONGXINGDEYOUXIAOSHOUDUANZHIYI。ZHENGQUEDIJIEDI,JINENGYIZHIDIANCIGANRAODEYINGXIANG,YOUNENGYIZHISHEBEIXIANGWAIFACHUGANRAO;ERCUOWUDEJIEDI,FANERHUIYINRUYANZHONGDEGANRAOXINHAO,SHIKONGZHIBANXITONGJIANGWUFAZHENGCHANGGONGZUO。JIEDIXITONGHUNLUANDUIKONGZHIBANXITONGDEGANRAOZHUYAOSHIGEGEJIEDIDIANDIANWEIFENBUBUJUN,BUTONGJIEDIDIANJIANCUNZAIDIDIANWEICHA,YINQIDIHUANLUDIANLIU,YINGXIANGXITONGZHENGCHANGGONGZUO。LIRUDIANLANPINGBICENGBIXUYIDIANJIEDI,RUGUODIANLANPINGBICENGLIANGDUANDOUJIEDI,JIUCUNZAIDIDIANWEICHA,ZHEISHIJIUYOUDIANLIULIUGUOPINGBICENG,DANGFASHENGYICHANGZHUANGTAIRULEIJISHI,DIXIANDIANLIUJIANGGENGDA。CIWAI,PINGBICENG、JIEDIXIANHEDIZHIJIANYOUKENENGGOUCHENGBIHEHUANLU,ZAIBIANHUACICHANGDEZUOYONGXIA,PINGBICENGNEIYOUHUICHUXIANGANYINGDIANLIU,TONGGUOPINGBICENGYUXINXIANZHIJIANDEHUOHE,GANRAOXINHAOXINGCHENGHUILU。MONIDIDIANWEIDEFENBUJIANGDAOZHICELIANGJINGDUXIAJIANG,YINQIDUIXINHAOCEKONGDEYANZHONGSHIZHENHEWUDONGZUO。KONGZHIBANGONGZUODELUOJIDIANYAGANRAORONGXIANJIAODI,LUOJIDIDIANWEIDEFENBUGANRAORONGYIYINGXIANGKONGZHIBANDELUOJIYUNSUANHESHUJUCUNZHU,ZAOCHENGSHUJUHUNLUAN、CHENGXUPAOFEIHUOSIJI。

控制板抗干扰设计的一般方法

YIZHIDIANCIGANRAODEJIBENYUANZESHIYIZHIGANRAOYUAN、QIEDUANHUOSHUAIJIANDIANCIGANRAODECHUANBOTUJING、TIGAOZHUANGZHIHEXITONGDEKANGGANRAONENGLI。

1. 设备选型

ZAIXUANZESHEBEISHI,SHOUXIANYAOXUANZEYOUJIAOGAOKANGGANRAONENGLIDECHANPIN,QICIHAIYINGLEJIESHENGCHANCHANGJICHUDEKANGGANRAOZHIBIAO,RUNAIYANENGLI、GONGMOYIZHIBI,DUIZUIDADIANCHANGQIANGDUHEZUIGAOPINLVFANWEISHEZHI。LINGWAIKAOCHAQIZAILEISIGONGZUOZHONGDEYINGYONGSHIJI。RUGUOXUANZEGUOWAIJINKOUCHANPINYAOZHUYI:WOGUOSHICAIYONG220vGAONEIZUDIANWANGZHISHI,BIRURIBENSHI110vDINEIZUDIANWANG。YOUYUWOGUODIANWANGNEIZUDA,LINGDIANDIANWEIPIAOYIDA,DIDIANWEIBIANHUADA,GONGYEQIYEXIANCHANGDEDIANCIGANRAOZHISHAOYAOBIRIBENGAO4BEIYISHANG,DUIXITONGKANGGANRAOXINGNENGYAOQIUGENGGAO,ZAIGUOWAINENGZHENGCHANGGONGZUODEKONGZHIBANCHANPINZAIGUONEIGONGYEJIUBUYIDINGNENGKEKAOYUNXING,ZHEIJIUYAOQIUZAICAIYONGGUOWAICHANPINSHI,ANWOGUODEBIAOZHUN((GB/T13926)HELIXUANZE。

2. 设计施工中的抗干扰设计

WEIBAOZHENGXITONGZAIGONGYEDIANCIHUANJINGZHONGMIANSHOUHUOJIANSHAONEIWAIDIANCIGANRAO,BIXUZONGHEKANGGANRAOSHEJI,ZAISHEJIJIEDUANCAIQUCUOSHI。ZONGHEKANGGANRAOSHEJIZHUYAONEIRONGBAOKUO:DUIKONGZHIBAN'XITONGJIWAIYINXIANJINXINGPINGBIYIFANGKONGJIANFUSHEDIANCIGANRAO;DUIWAIYINXIANJINXINGGELI、LVBO,TEBIESHIDONGLIDIANLAN,YINGGAIYUXINHAOXIANFENCENGBUZHI,YIFANGTONGGUOWAIYINXIANYINRUCHUANDAODIANCIGANRAO;ZHENGQUESHEJIJIEDIDIANHEJIEDIZHUANGZHI,WANSHANJIEDIXITONG。

主要抗干扰措施

1. 采用性能优良的电源

ZAIKONGZHIBANXITONGZHONG,DIANYUANZHANYOUSHIFENZHONGYAODEDIWEI。DIANWANGGANRAOCHUANRUKONGZHIBANXITONGZHUYAOTONGGUOKONGZHIBANXITONGDEGONGDIANDIANYUAN、BIANSONGQIGONGDIANDIANYUANHEYUKONGZHIBANXITONGJUYOUZHIJIEDIANQILIANJIEDEYIBIAOGONGDIANDIANYUANDENGOUHEJINRUDE。DUIYUKONGZHIBANXITONGGONGDIANDEDIANYUAN,YIBANDOUCAIYONGGELIXINGNENGJIAOHAODIANYUAN;ERDUIYUBIANSONGQIGONGDIANDEDIANYUANHEKONGZHIBANXITONGYOUZHIJIEDIANQILIANJIEDEYIBIAODEGONGDIANDIANYUAN,XUANZEFENBUDIANRONGXIAO、YIZHIXINGQIANGDEPEIDIANQI,YIZHIDIANWANGYINRUDEGANRAO。

2. 电缆选择和敷设

WEILEJIANSHAODONGLIDIANLANFUSHEDIANCIGANRAO,BUTONGLEIXINGDEXINHAOFENBIEYOUBUTONGDIANLANCHUANSHU,XINHAODIANLANYINGANCHUANSHUXINHAOZHONGLEIFENCENGFUSHE,YANJINYONGTONGYIDIANLANDEBUTONGDAOXIANTONGSHICHUANSONGDONGLIDIANYUANHEXINHAO,BIMIANXINHAOXIANYUDONGLIDIANLANKAOJINPINGXINGFUSHE.YIJIANSHAODIANCIGANRAO。

3. 硬件滤波及软件抗干扰措施

开心快3 XINHAOZAIJIERUJISUANJIQIAN,ZAIXINHAOXIANYUDIJIANBINGLIANDIANRONG,YIJIANSHAOGONGMOGANRAO。YOUYUDIANCIGANRAODEFUZAXING,YAOGENBENXIAOCHUGANRAOYINGXIANGSHIBUKENENGDE,KUNCIZAIKONGZHIBANXITONGDERUANJIANSHEJIHEZUTAISHI,HAIYINGZAIRUANJIANFANGMIANJINXINGKANGGANRAOCHULI,JINYIBUTIGAOXITONGDEKEKAOXING。

4. 选择正确接地点系统

JIEDIDEMUDETONGCHANGYOULIANGGE,QIYIWEILEANQUAN,QIERSHIWEILEYIZHIGANRAO。WANSHANDEJIEDIXITONGSHIKONGZHIBANXITONGKANGDIANCIGANRAODEZHONGYAOCUOSHIZHIYI。XITONGJIEDIFANGSHIYOU:FUDIFANGSHI、ZHIJIEJIEDIFANGSHIHEDIANRONGJIEDISANZHONGFANGSHI。DUIKONGZHIBANXITONGERYAN,TASHUGAOSUDIDIANPINGKONGZHIZHUANGZHI,YINGCAIYONGZHIJIEJIEDIFANGSHI。YOUYUXINHAODIANLANFENBUDIANRONGHESHURUZHUANGZHILVBODENGDEYINGXIANG,ZHUANGZHIZHIJIANDEXINHAOJIAOHUANPINLVYIBANDOUDIYUl MHz,SUOYIKONGZHIBANXITONGJIEDIXIANCAIYONGYIDIANJIEDIHECHUANLIANYIDIANJIEDIFANGSHI。JIZHONGBUZHIDEKONGZHIBANXITONGSHIYUBINGLIANYIDIANJIEDIFANGSHI,GEZHUANGZHIDEJUTIZHONGXINJIEDIDIANYIDANDUDEJIEDIXIANYINXIANGJIEDIJI。RUGUOZHUANGZHIJIANJUJIAODA,YINGCAIYONGCHUANLIANYIDIANJIEDIFANGSHI。

5. 控制板输入、输出信号回路采用光电隔离

开心快3 LIYONGGUANGDIANHUOHEQIDEKAIGUANTEXINGSHIXIANSHURENHESHUCHUXINHAODEWANQUANGELI,YICHENGWEIYIZHIGANRAODEYOUXIAOCUOSHIZHIYI。GUANGDIANFUHEQIBAGEZHONGMONIFUZAIHESHUZIXINXIYUANGELIKAILAI,YEJIUSHIBA“MONIDE”HE“SHUZIDE”DUANKAI。GUANGDIANOUHEQINENGSHIXIANLIANGHAOGELIDEYUANYINYOUSANGE。

a. YOUYUGUANGDIANGUNHEQISHURUDIANZUKANGHENXIAOERGANRAOYUANDENEIZUZEHENDA,YINCIFENYADAOGUANGDIANOUHEQISHURUDUANDEGANRAOXINHAOJIAOXIAO,SHURUHUILUYUSHUCHUHUILUZHIJIANFENBUDIANRONGJIXIAO,ERQIEJUEYUANDIANZUJIAOGAO,YINCIHUILUYIBIANDEGANRAOHENNANTONGGUOGUANGDIANOUHEDEHUIKUISONGDAOLINGYIBIAN;

开心快3 b. GUANGDIANOUHEQIZAIMIFENGTIAOJIANXIASHIXIANSHURUHUILUYUSHUCHUHUILUDEGUANGHUOHE,BUHUISHOUWAIJIEGUANGDEYINGXIANG;

c. WULUNSHIMONIHAISHISHUZIXINHAO,ZAISHURU、SHUCHUTONGDAOSHANGDOUCAIYONGGUANGDIANHUOHEDIANLU,YONGGUANGXIANLAIOUHEXINHAO,SHISHUREN、SHUCHUMEIYOUDIANDEZHIJIELIANXI,KEYIYOUXIAODIFANGZHILOUDIAN、DUANLU、DAHUO、GANYINGYINQIDEGUODIANYACHUANRUKONGZHIBANXITONG。YINCIZAIKONGZHIBANXITONGXIANCHANGuoXINHAOJINGGUANGDIANOUHEQIGELI,YUKONGZHIBANXITONGBENTIFENKAI,QIEDUANLEGANRAOZAOSHENGDETONGDAO,JIEJUELESHURU、SHUCHUHUILUDEKANGGANRAOWENTI,SHIXITONGDIAOSHIFANGBIAN,YUNXINGKEKAO。

结束语

GONGCHENGSHIJIANBIAOMING,CAIYONGYISHANGHANGGANRAOSHEJIHECUOSHIKEYIQUDEHENHAODEXIAOGUO。DANSHIKONGZHIBANXITONGZHONGDEGANRAOSHIYIGESHIFENFUZADEWENTI,HAIXUZAISHIJIANZHONGBUDUANMOSUO,ZONGHEKAOLVGEFANGMIANDEYINSU,JINYIBUWANSHANYOUHUAKANGGANRAOSHEJIFANGFA,HELIYOUXIAODIYIZHIGANRAO。

【格亚信电子】是专业从事电子产品设计、电子方案开发、电子产品PCBA加工开心快3的深圳电子方案公司,主要设计电子产品包括工控、汽车、电源、通信、安防、医疗电子产品开发。

GONGSIHEXINYEWUSHITIGONGYIGONGKONGDIANZI、QICHEDIANZI、YILIAODIANZI、ANFANGDIANZI、XIAOFEIDIANZI、TONGXUNDIANZI、DIANYUANDIANZIDENGDUOLINGYUDEDIANZICHANPINSHEJI、FANGANKAIFAJIJIAGONGSHENGCHANDEYIZHANSHIPCBAFUWU,WEIMANZUBUTONGKEHUXUQIUKETIGONGZHONGXIAOPILIANGPCBAJIAGONG。

GONGSICHANPINHANGAIGONGYESHENGCHANSHEBEIKONGZHISHEBEIDIANZIKAIFA、QICHEMCUDIANZIKONGZHIXITONGFANGANSHEJI、SIFUKONGZHIBANPCBAJIAGONG、SHUKONGJICHUANGZHUBANPCBAJIAGONG,ZHINENGJIAJUDIANZIYANFA、3DDAYINJIKONGZHIBANPCBAJIAGONGDENGLINGYU。YEWULIUCHENGBAOKUODIANZIFANGANKAIFASHEJI、PCBSHENGCHAN、YUANQIJIANCAIGOU、SMTTIEPIANJIAGONG、YANGJIZHIZUODIAOSHI、PCBAZHONGXIAOPILIANGJIAGONGSHENGCHAN、HOUQIZHIBAOWEIHUYIZHANSHIPCBAJIAGONGFUWU。

http://eecqu.com/

作者:控制板


Go To Top 回顶部

开心快3