Tel:+86-159 2005 0799
  • English/
图片展示
■ News
■ 联系我们/Contact us
  • 深圳市言必信科技有限公司
  • 电话:0755-27147102 / 27147103
  • 销售直线:13823704081
  • 技术热线:18929322788
  • 传真:0755-27147101
  • 商务QQ:522082770
  • 邮箱:yanbixin@yeah.net
  • 网址:www.yanbixinkeji.com
  • 地址:深圳市宝安区松岗街道溪头社区溪头路22号

Differentiation of filters

Time: 2019-03-08 11:34:59

Click: 115

滤波器的区别

Filter difference

The filter has a passive filter and an active filter; how do the passive and active filters differ? Here are a few ways to teach you:

1. The active filter cancels it after detecting a certain set of harmonic times, and the passive filter forms a harmonic channel to absorb harmonics through the cooperation of the reactor and the capacitor;

2. The active filter is electronic and the passive filter is mechanical;

3, the use of passive filters because of the capacitor



The filter also has points:

1. Low pass filter

From 0 to f2, the amplitude-frequency characteristic is flat, which allows the frequency components below the f2 in the signal to pass almost without attenuation, while the frequency components above f2 are greatly attenuated.

2. Band stop filter

In contrast to bandpass filtering, the stopband is between frequencies f1 to f2. It attenuates the frequency components of the signal above f1 and below f2, and the signals of the remaining frequency components pass almost without attenuation.

 3. Bandpass filter

Its passband is between f1 and f2. It allows the frequency components of the signal above f1 and below f2 to pass without attenuation, while the other components are attenuated.

4. High pass filter

In contrast to low-pass filtering, the amplitude-frequency characteristics are straight from the frequency f1 to ∞. It allows the frequency components above the f1 in the signal to pass almost without attenuation, while the frequency components below f1 are greatly attenuated.


 



Shenzhen Yanbixin Technology Co., Ltd. specializes in power filter production for more than 10 years. There are many R&D engineers in the original device industry of electromagnetic interference filter for more than 10 years. The company is also equipped with professional EMC test equipment to help customers quickly pass EMC/EMI test. And cooperate with many surrounding laboratories! More effective in helping with EMC/EMI testing issues!

图片展示

WeChat Subscription

图片展示

Wechat

SHENZHEN YANBIXIN TECHNOLOGY CO.,LTD    TEL:+86-755-27147102/27147103

SHENZHEN YANBIXIN TECHNOLOGY CO.,LTD