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Tuesday, July 28, 2020

How to make a mini Bridge Amplifier using TDA2822

In this post, I will show you how to make a mini Bridge Amplifier using TDA2822

If you prefer video mode or like to watch the working of the project please click here to watch it on YouTube

Parts List
  • 1 * TDA2822
  • 1 * 10k (Trimmer, Potentiometer or Logarithmic Potentiometer)
  • 3 * 10 Ohm Resistor
  • 3 * 0.1uF Ceramic Capacitor
  • 1 * 100uF/16V Electrolytic Capacitor
  • 1 * 10uF/50V Electrolytic Capacitor
Theory

    In this project, the main component is TDA2822 which is an integrated audio amplifier that can operate with a supply voltage ranging from 2 to 12 Volts.

    TDA2822 can work in both Bridge & Stereo configuration. But for this project, I am using the Bridge configuration. TDA2822 also has a closed-loop voltage gain of about 40 dB for both Bridge & Stereo configuration.

In the circuit, the RV1 pot can be used to control the volume.

Circuit Diagram


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