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25 W Bridge Amplifier Circuit

admin March 13, 2008 1 Comment

About the circuit

A superb power amplifier using TDA 2009 which can deliver a blowing 25 W rms onto a 4 Ohm speaker and 13 W rms onto a 8 Ohm load. ICTDA 2009 is actually a 2 channel amplifier each of 13W rms on 4 Ohm.Here the two are connected in bridge format to double the output power to 25W.This circuit is designed exactly as what is said in the data sheet.

Circuit Diagram

25-w-tda-2009-amp-lab.jpg
Tips

  1. Maximum possible input voltage for TDA 2009 is 24 V.Don’t exceed it.
  2. Make a bridge rectifier using four 5 A diodes if 5 ampere bridge is not available
  3. TDA 2009 must befitted with a proper size heat sink
  4. Thermal risks are very high so don’t try the circuit without heat sink.
  5. A 10K pot can be connected in series with the input as a volume control
  6. All capacitors are rated above 25 V.


Comments
  • September 13, 2010

    25 W Bridge Amplifier Circuit…

    A superb power amplifier using TDA 2009 which can deliver a blowing 25 W rms onto a 4 Ohm speaker and 13 W rms onto a 8 Ohm load…….

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