本文目录一览:
- 1、在锁相环路中低通滤波器的作用?
- 2、低通滤波器一般用在什么地方?低通滤波器有什么作用呢?
- 3、什么是低通滤波器lpe及其作用
- 4、电路里滤波器的作用是什么?
在锁相环路中低通滤波器的作用?
锁相中的低通滤波器实际是一个环路滤波器,由线性元件电阻、电容或运算放大器组成。
作用是低频信号通过,滤除误差电压的高频分量,取出平均电压去控制VCO。
可以改善控制电压的频谱纯度,提高系统稳定度,同时它调整了锁相环路的参数,输出信号的稳定性、频谱纯度、锁定时间等。。。
低通滤波器一般用在什么地方?低通滤波器有什么作用呢?
低通滤波器是容许低于截止频率的信号通过,
而高于截止频率的信号不能通过的一种元器件或者电子线路组合。
低通滤波器在音箱的分配器中能够应用,使得信号中的低音能被分离出来,送入单独的放大器,使得低音音箱能够工作。
在无线电发射机中,可以使用低通滤波器来阻塞可能引起与其它通信发生干扰的谐波发射。
在 *** 传输中,DSL分离器使用低通和高通滤波器分离共享使用双绞线的DSL和POTS信号。
在电子音乐重要设备——音乐模拟合成器中,低通滤波器能发挥作用。
什么是低通滤波器lpe及其作用
低通滤波器(简称为LPE)就是让低频
信号
通过,阻止
高频信号
通过。一般用于去掉
输入信号
中不必要的高频
成分
,去除高频干扰。另外,在选频 *** 中也有应用。
1、
电源
滤波就是一个典型的RC低通滤波器,设计的
截止频率
为50HZ以下,它让直流通过,阻止50HZ以上的
频率
通过。
2、在一些好些的
音箱
,有
高音
、
中音
、
低音
三种
喇叭
,为了将
音频
中的各频率段分别提供给给它们,往往
内部
装有三分频 *** ,这是LC低通滤波器、
高通滤波器
、
带通滤波器
一起使用的应用实例。
电路里滤波器的作用是什么?
滤波器的作用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,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。
利用电源滤波器的这个特性,可以将通过电源滤波器后的一个方波群或复合噪波,变成一个特定频率的正弦波。
大功率电源的滤波器如Satons、UBS、变频器等将会产生大量谐波电流,这类滤波器需采用有源电力滤波器APF。APF可对2~50次谐波电流进行滤除。
扩展资料
电源滤波器不能存在电磁耦合路径:
①电源输入线过长;
②电源滤波器的输入线和输出线靠的过近。
此两种都是不正确的安装方式,问题的本质在于,滤波器的输入端电线和它的输出端电线之间存在有明显的电磁耦合路径。
这样一来,存在于滤波器某一端的EMI信号会逃脱滤波器对它的抑制,不经过滤波器的衰减而直接耦合到滤波器的另一端去。因此滤波器输入与输出先需有效分开。
另外,如上述两种把电源滤波器都是安装在设备屏蔽的内部,设备内部电路及元件上的EMI 信号会因辐射在滤波器的(电源)端引线上生成EMI 信号而直接耦合到设备外面去,使设备屏蔽丧失对内部元件和电路产生的EMI 辐射的抑制。
当然,如果滤波器(电源)上存在有EMI 信号,也会因辐射而耦合到设备内部的元件和电路上,从而破坏滤波器和屏蔽对EMI 信号的抑 *** 用。所以起不到效果。
参考资料来源:百度百科-滤波器
低通滤波器的作用- 上海景点排名(上海景点排名前十视频) - 鸿海伟业生活资讯网 The ties between the CPC and the ruling Cambodian People's Party, whose president is Hun Sen, play a...
- 张晓菲 - 鸿海伟业生活资讯网 "Only if all sides bear their due responsibilities, can the peninsula nuclear issue be truly resolve...
- 成都蔬菜配送 - 鸿海伟业生活资讯网 The couple was listed for the discovery of the Kaposi's sarcoma-associated herpes virus (KSHV), also...
- 婴儿奶粉排行榜(婴儿奶粉品牌排行榜) - 鸿海伟业生活资讯网 The top domestic consumers, in descending order, are India, the EU, China, the US and Brazil...
- 租房扣税 - 鸿海伟业生活资讯网 Cho's brothers and sisters also brought their children to Hefei...
- 人才引进政策(人才引进政策是公务员还是事业编) - 鸿海伟业生活资讯网 One of the results is that the Chinese people are more confident than ever about their country's dev...
- 战争美剧 - 鸿海伟业生活资讯网 The Chinese side reiterated that like the current Philippine government, the Chinese government main...
- 个人保险怎么查询(个人保险怎么查询缴费明细) - 鸿海伟业生活资讯网 That was certainly not the policy under Obama when he launched the US pivot-to-Asia policy, trying t...
- 三国小说排行榜(特种兵穿越三国小说排行榜) - 鸿海伟业生活资讯网 MOSCOW -- Russia strongly condemned the latest missile launch by the Democratic People's Republic of...
- 农民工工资拖欠(农民工工资拖欠没有劳动合同怎么办) - 鸿海伟业生活资讯网 "There should be no new nuclear weapons state, whether it is in the north or south of the peninsula,...
- 成都蔬菜配送 - 鸿海伟业生活资讯网 In 2000, with Cho's help, the Banyang Elementary School - in which she had studied - began teaching ...
- 成都动物医院(成都专心爱宠动物医院) - 鸿海伟业生活资讯网 Kono said Pyongyang's nuclear and missile programs have posed a practical threat to regional peace a...
- 心娘 - 鸿海伟业生活资讯网 "Everybody else will have to do their share; they cannot leave this issue to China alone," Cui said...
- 长相最丑的血型(什么血型的人最丑) - 鸿海伟业生活资讯网 Abe told executives of his Liberal Democratic Party and its junior coalition partner, the Komeito pa...
- 怎么申请公租房(北京怎么申请公租房) - 鸿海伟业生活资讯网 "He wanted to go to the inland provinces, and he had some knowledge of Anhui, so he chose Hefei as h...
- 登录公众号 - 鸿海伟业生活资讯网 The cultural center of the Jinpu New Area also arranged some courses for them to know about other tr...
- 教师资格证体检表 - 鸿海伟业生活资讯网 She has received a number of awards for her work, including the Meyenburg Foundation Award for Cance...
- 办结婚证(办结婚证没有户口本可以办吗) - 鸿海伟业生活资讯网 [Photo/Xinhua]Poverty reliefAn ambitious poverty reduction campaign is seeking to change this, ensur...
- 教师资格证体检表 - 鸿海伟业生活资讯网 The opposition camp, however, has criticized Abe's move to call a snap election, with some accusing ...
- 蓄电池十大名牌(家用蓄电池十大名牌) - 鸿海伟业生活资讯网 My daughter came here when she was only 4 years old...
- 圣诞节活动(圣诞节促销活动策划方案) - 鸿海伟业生活资讯网 The seeds grew up successfully and they decided to set up a ginger cultivation base spread over 2...
- 怎样鉴别玉手镯(怎样鉴别玉手镯证书) - 鸿海伟业生活资讯网 I believe that in the coming five years, the gap between coastal and inland regions will be narrowed...
- 国产保温杯十大排名 - 鸿海伟业生活资讯网 The couple was listed for the discovery of the Kaposi's sarcoma-associated herpes virus (KSHV), also...
- 太湖乐园(太湖乐园门票多少) - 鸿海伟业生活资讯网 For the last five years, the air has been clearing up...
- 成都市地震局(成都市地震局局长领导班子) - 鸿海伟业生活资讯网 Zhou Fuming, director general of Suzhou Mike Textile, who has set up a textile and dyeing company in...
- 肝素钠原料药(肝素钠原料药厂家) - 鸿海伟业生活资讯网 "Cui, however, bluntly said that China will never recognize the DPRK as a nuclear state and opposes ...
- 国产电动车(国产电动车标志) - 鸿海伟业生活资讯网 Cho's reputation is not limited to education, however...
- 露天停车场 - 鸿海伟业生活资讯网 They kept practicing from morning until night, trying to master the basic skills of lion dance, rout...
- 成都蔬菜配送 - 鸿海伟业生活资讯网 For the past 17 years, he has lived in Changsha, capital of Hunan province in central China...
- 电力龙头股(电力龙头股一览表) - 鸿海伟业生活资讯网 Lu said the joint statement, signed on Sept 19, 2005, is the most important progress in addressing t...
- cba新赛季赛程 - 鸿海伟业生活资讯网 This represents a dramatic shift since that question was last asked in 2015...
- 全国学校排名 - 鸿海伟业生活资讯网 She was recently on the stage making the pledge to the Party on behalf of all the students who were ...
- 手机支付概念股 - 鸿海伟业生活资讯网 Changsha is my second hometown, and my family is the biggest highlight of my time in Changsha," he s...
- 芈茵结局 - 鸿海伟业生活资讯网 Similarly, First Deputy Chairman of the Russian Federation Council's Defense and Security Committee ...
- 查违章怎么查(给别人查违章怎么查) - 鸿海伟业生活资讯网 The delegation consists of entrepreneurs in the sectors of finance, machine-building, energy, agricu...
- 全国十大名牌瓷砖(十大名牌瓷砖排名) - 鸿海伟业生活资讯网 For example, Singapore can become a launchpad for Chinese companies to march into international mark...
- 广元女儿节 - 鸿海伟业生活资讯网 He said Japan is willing to push forward denuclearization on the peninsula with China and other part...
- 医保系统(医保系统坏了要多久修复) - 鸿海伟业生活资讯网 "It was true during the first 30 years of China's opening-up while China was attracting foreign inve...
- 少女馆(少女馆) - 鸿海伟业生活资讯网 What are your expectations for the upcoming 19th National Congress of the Communist Party of China? ...
- 七月 - 鸿海伟业生活资讯网 Mary Square in San Francisco, the United States, on Sept 22, 2017...
- 办结婚证(办结婚证没有户口本可以办吗) - 鸿海伟业生活资讯网 Sun Xinwei, deputy general manager of China State Construction Engineering Corp Central and Western ...
- 失业了怎么办(失业了怎么办理失业金) - 鸿海伟业生活资讯网 The latest example was a 2016 donation of 20,000 yuan ($3,000) to four high school graduates in Hefe...
- 遮瑕膏推荐(学生平价遮瑕膏推荐) - 鸿海伟业生活资讯网 She has received a number of awards for her work, including the Meyenburg Foundation Award for Cance...
- 米兰婚纱官网 - 鸿海伟业生活资讯网 China's envoy to Washington has urged the US to do more to resolve the nuclear crisis on the Korean ...
- 泉州旅游团 - 鸿海伟业生活资讯网 The vice-premier said China is willing to work with the US to prepare for President Trump's visit to...
- 石膏板品牌 - 鸿海伟业生活资讯网 "There were even South Korean businessmen who intended to invest in Hefei but decided to invest in S...
- 上坟用什么花 - 鸿海伟业生活资讯网 The support rate for Abe's cabinet has improved moderately recently, and the opposition camp has acc...
- 逃狱电影(逃狱电影解说) - 鸿海伟业生活资讯网 She herself knew little of the province or its capital at that time, so she decided to have a look b...
- 办户口 - 鸿海伟业生活资讯网 The man, originally from New Delhi, gave himself a Chinese name called Wang Wei, same as one of the ...
- 办理居住证都需要什么材料 - 鸿海伟业生活资讯网 "China is not the driver behind the escalation of the tensions...
- 七中嘉祥外国语学校 - 鸿海伟业生活资讯网 "I told him that we had just started here and we should at least spend five years in the city before...
- 2022情人节 - 鸿海伟业生活资讯网 Meetings are planned for the delegation with Chinese government officials, industry partners and Bra...
- 贷款首付比例 - 鸿海伟业生活资讯网 After the incident, the center quickly organized seismological bureaus and geological institutions t...
- 中国奶粉排行榜前十名 - 鸿海伟业生活资讯网 Chinese Ambassador Sun Weidong and Pakistani Senate Secretary Amjed Pervez Malik signed a handover d...
- 保税国际 - 鸿海伟业生活资讯网 "In the early years, transportation between Hefei and South Korea was not convenient...
- 办户口 - 鸿海伟业生活资讯网 China has set 2020 as the target year to complete the building of a "moderately prosperous society,"...
- 秦国十大名将排名 - 鸿海伟业生活资讯网 The two sides are expected to exchange views on bilateral ties and issues of common concern, the Chi...
- 医保报销 - 鸿海伟业生活资讯网 When we were living in a community about 10 kilometers away, we could seldom see the hill from the w...
- 有的荷花 - 鸿海伟业生活资讯网 I hope it can play a more important role in world peace in the future...
- 电影鬼乡 - 鸿海伟业生活资讯网 Hiding the first part of the episode, the white paper criticized China for its frigate's entry into ...