Amplifier Circuit DiagramsAutomotive Circuit Diagrams

Car Stereo Amplifier Schematic Circuit Diagram

Given below is the circuit of a car stereo amplifier that can be used in cars or other vehicles. We have used TDA1553, which is a Class-B audio amplifier.

Description :

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. The amplifier operates from 12V DC and is developed internationally for car audio applications. The IC also has a load of good features like short circuit protection, load dump protection, reverse polarity protection, loudspeaker protection etc.

In the circuit, C5 and C4 are input decoupling capacitors while C3 sets the delay time for loudspeaker protection. C1 and C2 are power supply filter capacitors.

Car Stereo Amplifier Circuit diagram:

Car Stereo Amplifier Schematic Circuit Diagram

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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