Quality Credit Service
Hotline022-58714976

Working Principle of High Power DC Regulated Power Supply Filter

Author:直流电源Source:直流电源Link:http://businessinsurancequoting.com/

There are two kinds of filter circuits commonly used in high power DC regulated power supply: passive filter and active filter. The main forms of passive filtering are capacitive filtering, inductance filtering and complex filtering (including inverted L-type, LC filtering, LC-pi filtering and RC-pi filtering).


The main form of active filter is active RC filter, also known as electronic filter. The magnitude of the pulsation component in DC current is expressed by the pulsation coefficient S. The larger the value, the worse the filtering effect of the filter.


Pulse coefficient (S) = larger fundamental value of AC component of output voltage/DC component of output voltage


The principle of power filter is an impedance adapter network: the greater the impedance adapter between the input and output sides of power filter and the power and load sides, the more effective the attenuation of electromagnetic interference is.


The specific working principle is as follows: the direction of AC after diode rectification is single, but the size (current intensity) is still in constant change. This kind of pulsating DC is generally not directly used to power radio installations. In order to turn pulsating DC into waveform smoothing DC, we need to do some more work of "filling in and aligning", which is filtering. In other words, the task of filtering is to reduce the fluctuation component of the output voltage of the rectifier as much as possible and transform it into a nearly stable DC current.


According to the characteristics of electromagnetic disturbance at power port, EMI noise filter of power supply is a passive low-pass filter. It transmits AC to power source without attenuation, and greatly attenuates EMI noise coming with AC. At the same time, it can effectively suppress EMI noise produced by power supply equipment and prevent them from entering AC network to interfere with other electronic devices.


For more information on DC power supply, pulse power supply, radiation power supply and deuterium lamp power supply, please click on our website: http://businessinsurancequoting.com./

Scan and view mobile website

Landline:022-58714976                   Phone:18526577597         Contacts:Manager Yang  

Sales Hotline:15332076670             After-sale service:13820368713

Mailbox:tianjinanshengtong@126.com   tianjinanshengtong@163.com

WeChat:13820368713、15332076670

Addressn:No. 174 Jintang Road, Hedong District, Tianjin City (junction of Jintang Road and Telex Road) next to No. 2 Bridge Subway Station

Shengtong an (tianjin) high voltage power technology co. LTD
5分pk10网 快乐赛车 优信彩票 秒速时时彩开奖 一分pk10官方网站 永盛彩票 盛兴彩票 优优彩票 正好彩票 优优彩票