rajkot

Monday, November 7, 2011

CAR STEREO AMPLIFIER CIRCUIT

  1. Here is the circuit of a car stereo amplifier based on TDA1553. TDA1553 is a monolithic Class-B audio amplifier which contains 2 x 22 watt amplifiers in bridge tied load configuration.
  2. The amplifier operates from 12V DC and is developed intentionaly for car audio applications.
  3. The IC also has a load of good features like short circuit protection, load dump protection, reverse polarity protection, loud speaker protection etc.
  4. In the circuit , C5 and C4 are input decoupling capacitors while C3 sets the delay time for loud speaker protection.
  5. C1 and C2 are power supply filter capacitors.




    NOTES:
    • Assemble the circuit on a good quality PCB.
    • Use 12V DC for powering the circuit.
    • The circuit can deliver 22W per channel into 4 ohm speakers.
    • Fit the IC with a proper heat sink.

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