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不套路网赚

电源滤波器的特性、结构、常见错误

2018-12-25 565

DIANYUANLVBOQISHIYOUDIANRONG、DIANGANHEDIANZUZUCHENGDELVBODIANLU,YOUMING“DIANYUANEMILVBOQI”,HUOSHI“EMIDIANYUANLVBOQI”,YIZHONGWUYUANSHUANGXIANGWANGLUO,TADEYIDUANSHIDIANYUAN,LINGYIDUANSHIFUZAI。DIANYUANLVBOQIDEYUANLIJIUSHIYIZHONG——ZUKANGSHIPEIWANGLUO:DIANYUANLVBOQISHURU、SHUCHUCEYUDIANYUANHEFUZAICEDEZUKANGSHIPEIYUEDA,DUIDIANCIGANRAODESHUAIJIANJIUYUEYOUXIAO。LVBOQIKEYIDUIDIANYUANXIANZHONGTEDINGPINLVDEPINDIANHUOGAIPINDIANYIWAIDEPINLVJINXINGYOUXIAOLVCHU,DEDAOYIGETEDINGPINLVDEDIANYUANXINHAO,HUOXIAOCHUYIGETEDINGPINLVHOUDEDIANYUANXINHAO。

基本简介

电源滤波器不套路网赚就是对电源线中特定频率的频点或该频点以外的频率进行有效滤除的电器设备。电源滤波器的功能就是通过在电源线中接入电源滤波器,得到一个特定频率的电源信号,或消除一个特定频率后的电源信号。

不套路网赚LIYONGDIANYUANLVBOQIDEZHEIGETEXING,KEYIJIANGTONGGUODIANYUANLVBOQIHOUDEYIGEFANGBOQUNHUOFUHEZAOBO,BIANCHENGYIGETEDINGPINLVDEZHENGXIANBO。

DAGONGLVDIANYUANDELVBOQIRUSatons、UBS、BIANPINQIDENGJIANGHUICHANSHENGDALIANGXIEBODIANLIU,ZHEILEILVBOQIXUCAIYONGYOUYUANDIANLILVBOQIAPF。APFKEDUI2~50CIXIEBODIANLIUJINXINGLVCHU。

目的

DIANYUANLVBOQIDEMUDESHIZAIYIZHIDIANCIZAOSHENG,ZAOSHENGDEYINGXIANGKEFENWEIYIXIAERZHONG:

FASHE(Emissions):SHIYAOJIANGYOUSHEBEICHANSHENG,YINGXIANGDIANYUANHUOQITASHEBEIDEZAOSHENGJIANGDAOFAGUI(LIRUFCC part 15)YUNXUZHIYIXIA,LIRUYOUKAIGUANDIANYUANCHANSHENGDEZAOSHENG。

不套路网赚KANGRAO(Immunity):SHIYAOJIANGJINRUSHEBEIDEZAOSHENGJIANGDIDAOBUHUISHISHEBEICHUXIANYICHANGDONGZUODECHENGDU,LIRUYONGZAIGUANGBODIANTAIFASHESHEBEIZHONGDEYIQI。

DIANYUANLVBOQIYAOYIZHIDEZAOSHENGKEFENWEIYIXIADEERZHONG:

GONGMO:ZAIERTIAO(HUODUOTIAO)DIANYUANXIANDOUXIANGTONGDEZAOSHENG,KESHIWEIDIANYUANXIANDUIDIDEZAOSHENG。

CHAMO:DIANYUANXIANHEDIANYUANXIANZHIJIANDEZAOSHENG。

同一个电源滤波器对于共模噪声及差模噪声的抑制能力会有所不同,一般会用频率对应抑制量(以分贝表示)的频谱来说明。 

特性

不套路网赚DIANYUANLVBOQIDEMUDESHIZAIYIZHIDIANCIZAOSHENG,ZAOSHENGDEYINGXIANGKEFENWEIYIXIAERZHONG:

  • 发射(Emissions):是要将由设备产生,影响电源或其他设备的噪声降到法规(例如FCC part 15)允许值以下,例如由开关电源产生的噪声。
  • 抗扰(Immunity): 是要将进入设备的噪声降低到不会使设备出现异常动作的程度,例如用在广播电台发射设备中的仪器。

DIANYUANLVBOQIYAOYIZHIDEZAOSHENGKEFENWEIYIXIADEERZHONG:

  • 共模:在二条(或多条)电源线都相同的噪声,可视为电源线对地的噪声。
  • 差模:电源线和电源线之间的噪声。

同一个电源滤波器对于共模噪声及差模噪声的抑制能力会有所不同,一般会用频率对应抑制量(以分贝表示)的频谱来说明。 

结构

DIANYUANLVBOQIYIBANDOUSHEJIWEIZHIYOUDIANZU、DIANRONGJIDIANGANZUCHENGDEBEIDONGLVBOQI,MEIYOUXIANGJINGTIGUANZHILEIDEZHUDONGYUANJIAN。YOUTUSHIYIGEDIANYUANLVBOQIDELIZI,DIANYUANLVBOQIDESHANGFANGJIEDIANYUAN,DIANYUANDUANYOUYIGEGONGMODIANGAN,YEJIUSHIDIANYUANDEERTIAOXIANYITONGYIGEFANGXIANGRAOZAITIEXINSHANG,DIANYUANXIANSHANGRUOYOUGONGMOXUNHAO,QIZAIGONGMODIANGANCHANSHENGDECICHANGHUIXIANGJIA,YINCIYOUJIAODADEZUKANG,ERCHAMOXUNHAOZAIGONGMODIANGANCHANSHENGDECICHANGHUIHUXIANGDIXIAO,YINCIKEYILIUGUOGONGMODIANGAN。DIANYUANLIUGUODEDIANLIUZHUYAOSHICHAMODE,DANSHANGMIANYEKENENGHUIZAOSHENGYICHAMODEXINGSHICHUXIAN,RUOYAOYIZHICHAMOZAOSHENG,XUYAOLINGWAISHIYONGCHAMODIANGAN,HUOSHIGEXIANGYOUGEBIEDEDIANGANQI。

ZAIDIANYUANLVBOQISHANGHUISHIYONGTEBIEDEANGUIJIEOUDIANRONG,FENWEIXDIANRONGJIYDIANRONGERLEI:

XDIANRONG:YIZHICHAMOGANRAO(DIANYUANXIANZHIJIANDEGANRAO)。

YDIANRONG:YIZHIGONGMOGANRAO(GEZUDIANYUANXIANDUIDIZHIJIANDEGANRAO)。

不套路网赚YOUYUYDIANRONGTIGAOHUISHIDIANQIDELOUDIANLIUZENGJIA,ERDIANQIDELOUDIANLIUYOUQIGUIDINGFANWEI,YINCIYDIANRONGBUNENGTAIDA,YIBANDOUHUIBIXDIANRONGYAOXIAO。

X电容和Y电容属于安规电容,即其失效后不会造成电击,也不会影响人身安全。二者都有自我复原(self-healing)作用,会使局部短路的部份恢复原来的绝缘状态。 [2] 

常见错误

ZAISHIYANCESHIGUOCHENGZHONG,WOMENCHANGYUDAOZHEIYANGDEQINGKUANG:SUIRANSHEJIGONGCHENGSHIZAISHEBEIDIANYUANXIANSHANGJIELEDIANYUANLVBOQI,DANSHIGAISHEBEIHAISHIBUNENGTONGGUO"CHUANDAOSAORAODIANYAFASHE"CESHI,GONGCHENGSHIHUAIYILVBOQIDELVBOXIAOGUOBUHAO,BUDUANGENGHUANLVBOQI,RENGBUNENGDEDAOLIXIANGDEXIAOGUO。

分析设备超标的原因,不外乎以下两个方面:

1)SHEBEICHANSHENGDESAORAOTAIQIANG;

2)SHEBEIDELVBOBUZU。

不套路网赚DUIYUDIYIZHONGQINGKUANG,WOMENKEYITONGGUOZAISAORAOYUANCHUCAIQUCUOSHI,JIANGDISAORAODEQIANGDU,HUOZHEZENGJIADIANYUANLVBOQIDEJIESHU,TIGAOLVBOQIDUISAORAODEYIZHINENGLILAIJIEJUE。DUIYUDIERZHONGQINGKUANG,CHULELVBOQIZISHENXINGNENGBUHAOYIWAI,LVBOQIDEANZHUANGFANGSHIDUITADEXINGNENGYINGXIANGHENDA。ZHEIYIDIANWANGWANGSHIBEISHEJIGONGCHENGSHIHUSHIDE。ZAIHENDUOCESHIZHONG,WOMENTONGGUOGENGGAILVBOQIDEANZHUANGFANGSHIJIUNENGSHISHEBEISHUNLITONGGUOCESHI。

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