FMUSER Wirless Transmit Video And Audio More Easier !

[email protected] WhatsApp +8618078869184
Language

    DIY a typical stereo RF power amplifier (TDA2030A)

     

    DIY a typical stereo RF power amplifier  (TDA2030A)

    The stereo power amplifier integrated circuit TDA2030A is mainly composed of a stereo amplifier , which uses a typical power amplifier circuit, with little distortion , fewer external components , high stability , wide frequency range , high fidelity , power , etc. advantages , while using quad op amp GL324A input audio signal processing and high , bass control , and thus more to ensure the sound output quality. This is a very suitable radio enthusiasts and audiophiles homemade stereo sets timber . The PA actual listening , soft and delicate treble , bass plump mellow.
    First, the working principle
    The stereo power amplifier used in the core of the chip is an international high-fidelity audio power amplifier integrated circuit TDA2030A. The circuit consists of three parts , namely, the power circuit, power amplifier , and input signal processing power left and right channels ( quad op amp ) . 220V AC power adapter will be reduced dual 12V low-voltage alternating current , after the bridge rectifier becomes ± 18V DC , as op-amp amplifier and power supply , D5, R29 integral power indicator circuit to indicate that the power is normal, switch K is power switch.
    Quad Operational Amplifier GL324A ( or LM324) and peripheral components is high, the bass control processing circuit circuit and audio input signals , C16, C18 are the input coupling circuit two signals , W1 is a two- way bass control potentiometer , W2 are two Road treble control potentiometer , C25, C26 is the output coupling capacitor . GL324A of 4 feet and 11 feet respectively, the positive and negative terminals of the power supply , 3,5 feet ground.
    Two power amplifier integrated circuit using a TDA2030A, which one is the positive input pin , pin 2 inverting input , C3, C6 , respectively, for the left and right inputs of two coupling capacitors , R1, R4, C2 constitute the negative feedback circuit IC1 , R6, R7, C5 IC2 constituting a negative feedback circuit to enhance the sound quality . Its 5 feet, 3 feet respectively connected to the positive and negative power supply , 4 -pin as an output , then 4Ω speaker load , its effective power up to 20W, W3 is a two -way balancing potentiometer , W4 is a two -way volume potentiometer .
    Second, welding and installation
    Usually the first load low, heat-resistant components , and finally installed integrated circuits. The following steps should be welded with the installation: ( 1 ) the quantity and quality of components inventory and timely replacement of defective components ; ( 2 ) to determine the components of the pitch installation, using horizontal mounting resistors , capacitors Polyester electrolytic capacitors vertical installation , and are required to close the circuit board. ( 3 ) Cartridge IC1, IC2 caution feet fully inserted before welding, and pay attention to the heat sink with the holes coincide . Each tin solder heating time and the amount should be appropriate to prevent solder false and short , cut off the excess after welding pin and check all joints , after confirmation test before electricity . Also note that the power transformer primary , secondary and wiring switches and circuit boards , without fail , IC1, IC2 with self-tapping screws and radiator are connected .
    Third, test and assembly
    1 , power test
    After all the components and plug- welded , after carefully checked before the live test with a multimeter to measure DC voltage profile positive and negative power supply should be about ± 18V, light-emitting diodes D5 light, after connecting frets , hand touch inputs IN1, IN2, the sensor should be strong signal that the circuit is normal . If there is no strong sense signal , indicating that the amplifier circuit is not working , need further examination IC1, IC2, IC3 and peripheral components to install welded properly.
    2 , machine assembly

    图片点击可在新窗口打开查看

     

     

     

     

    List all Question

    Nickname

    Email

    Questions

    Our other product:

    Professional FM Radio Station Equipment Package

     



     

    Hotel IPTV Solution

     


      Enter email  to get a surprise

      fmuser.org

      es.fmuser.org
      it.fmuser.org
      fr.fmuser.org
      de.fmuser.org
      af.fmuser.org ->Afrikaans
      sq.fmuser.org ->Albanian
      ar.fmuser.org ->Arabic
      hy.fmuser.org ->Armenian
      az.fmuser.org ->Azerbaijani
      eu.fmuser.org ->Basque
      be.fmuser.org ->Belarusian
      bg.fmuser.org ->Bulgarian
      ca.fmuser.org ->Catalan
      zh-CN.fmuser.org ->Chinese (Simplified)
      zh-TW.fmuser.org ->Chinese (Traditional)
      hr.fmuser.org ->Croatian
      cs.fmuser.org ->Czech
      da.fmuser.org ->Danish
      nl.fmuser.org ->Dutch
      et.fmuser.org ->Estonian
      tl.fmuser.org ->Filipino
      fi.fmuser.org ->Finnish
      fr.fmuser.org ->French
      gl.fmuser.org ->Galician
      ka.fmuser.org ->Georgian
      de.fmuser.org ->German
      el.fmuser.org ->Greek
      ht.fmuser.org ->Haitian Creole
      iw.fmuser.org ->Hebrew
      hi.fmuser.org ->Hindi
      hu.fmuser.org ->Hungarian
      is.fmuser.org ->Icelandic
      id.fmuser.org ->Indonesian
      ga.fmuser.org ->Irish
      it.fmuser.org ->Italian
      ja.fmuser.org ->Japanese
      ko.fmuser.org ->Korean
      lv.fmuser.org ->Latvian
      lt.fmuser.org ->Lithuanian
      mk.fmuser.org ->Macedonian
      ms.fmuser.org ->Malay
      mt.fmuser.org ->Maltese
      no.fmuser.org ->Norwegian
      fa.fmuser.org ->Persian
      pl.fmuser.org ->Polish
      pt.fmuser.org ->Portuguese
      ro.fmuser.org ->Romanian
      ru.fmuser.org ->Russian
      sr.fmuser.org ->Serbian
      sk.fmuser.org ->Slovak
      sl.fmuser.org ->Slovenian
      es.fmuser.org ->Spanish
      sw.fmuser.org ->Swahili
      sv.fmuser.org ->Swedish
      th.fmuser.org ->Thai
      tr.fmuser.org ->Turkish
      uk.fmuser.org ->Ukrainian
      ur.fmuser.org ->Urdu
      vi.fmuser.org ->Vietnamese
      cy.fmuser.org ->Welsh
      yi.fmuser.org ->Yiddish

       
  •  

    FMUSER Wirless Transmit Video And Audio More Easier !

  • Contact

    Address:
    No.305 Room HuiLan Building No.273 Huanpu Road Guangzhou China 510620

    E-mail:
    [email protected]

    Tel / WhatApps:
    +8618078869184

  • Categories

  • Newsletter

    FIRST OR FULL NAME

    E-mail

  • paypal solution  Western UnionBank OF China
    E-mail:[email protected]   WhatsApp:+8618078869184   Skype:sky198710021 Chat with me
    Copyright 2006-2020 Powered By www.fmuser.org

    Contact Us