FUJIAN SATLINK ELECTRONICS CO.,LTDProvided free of charge for youhdmi to dvb-t modulatorring modulatorcombo boxRelated information release and the latest information , please concern
FUJIAN SATLINK ELECTRONICS CO.,LTD
  
Station Outside the station
Contact us
News detail
Your location:Home > Industry news > Details

The effect of the modulator in the amplification

source:http://www.dvb-tmodulator.com/news/42.html
Release time:2017-06-07
   With the development of limited television in China, for the TV modulator products, in the adjustment of the signal play a significant role. In fact, as a modulator, the main converter DC amplifier circuit is an important part.
  To enlarge the DC signal ui through the PBI modulator, into the AC signal U; and then amplified by the AC amplifier, the final by the demodulator into the DC output signal UO; oscillator to generate switching signal U; for the control of the modulator Sampling action. Since the amplification task of the signal is done primarily by the AC amplifier and the zero drift of the AC amplifier is negligible, the zero drift of the modulator and demodulator can also be made small, so the modulated DC amplifier can be used to amplify the faint DC signal,

  Modulators typically come in three forms: mechanical modulators (mechanical choppers), transistor modulators, and field-effect modulators. According to the circuit can be divided into parallel modulator and string, parallel modulator two, the latter than the former superior performance, but the structure is complex.


Related tags:modulator,

ADD:Jiangnan High Technology Industrial Zone,Licheng District,Quanzhou City, Fujian Province, China.

TEL:86-595-28106252 ; 86-595-28106302

FAX:86-595-28106253

E-mail:  Seny:  dp03@baotong.cc ;Nancy :  dp02@baotong.cc ;

www.sat-link.com.cn

sitemap | XML | 4G Powered by nest
Copyright© www.dvb-tmodulator.com
FUJIAN SATLINK ELECTRONICS CO.,LTD combo meterWhich good ? How much money supply customized ?optical modulatorThe good faith company specializing in the spot provided at wholesale priceRF Modulator、dvb t、combo enable copper、dvb t antenna Such as good quality products and offer , welcome to produce customized

Close
  • QQ
    Call me!
    Linkedin:fenglinling@163.com

    What'sapp:0086-15060629260