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Tuesday, July 28, 2020

How to make a 20 Watt Bridge Amplifier using TDA2005R

In this post, I will show you how to make a 20-watt bridge amplifier using TDA2005R

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

Parts List
  • 1 * TDA2005R
  • 1 * 2.2uF/25V Electrolytic Capacitor
  • 1 * 10uF/25V Electrolytic Capacitor
  • 2 * 220uF/25V Electrolytic Capacitor
  • 1 * 1000uF/25V Electrolytic Capacitor
  • 4 * 0.1uF Ceramic Capacitor
  • 2 * 1 Ohm and 10 Ohm Resistor
  • 1 * 1K Ohm Resistor
  • 1 * 1.5K Ohm Resistor
Theory

    In this project, the main component is the TDA2005R which is a class B dual audio power amplifier in the Multiwatt11 package. TDA2005R can be configured for Bridge or Stereo applications.

TDA2005R can operate with a supply voltage ranging from 8 to 18 volts and has a closed-loop voltage gain of about 50dB.

For this project, I am using the Bridge configuration.

Note: When using a Multiwatt11 package always use a heat sink

Circuit Diagram

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