Electronics Circuit Diagram

Audio amplifier is an electronic amplifier that amplifies low-power audio signals. Below schematic shows a circuit board design of a 20W Bridge Audi Amplifier for car radio. This circuit design uses TDA7240A, a 20W bridge audio amplifier IC designed specially for car radio applications. The TDA7240A protects the loudspeaker when one output is short-circuited to ground.

20W Bridge Audi Amplifier Circuit Parts list:
C1 ____ 1 uF
C2 ____ 22 uF
C3 ____ 22 uF
C4 ____ 220 uF
C5 ____ 0.1 uF
C6 ____ 0.22 uF
C7 ____ 0.22 uF
R1 ____ 2.2 Ohm
R2 ____ 2.2 Ohm
TDA7240A

Reference: http://www.st.com/stonline/books/pdf/docs/1469.pdf

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