This is the 25W bridge audio amplifier built using single power IC
TDA2005. Actually, the TDA2005 is a stereo power amplifier chip. It has
two input channels and two output channel and delivers about 10W power
output for each channel, since it connected in bridge mode then it will
delivering up to 25W audio output. Take a note that the speaker
terminals should not conected to the ground and mount the IC on the
heatsink to prevent overheating.
25W Bridge Audio Amplifier with TDA2005 Circuit Diagram
Parts List:
R1 = 120K?
R2,5,6 = 1K?
R3,4 = 12?
R7,8= 1?
C1,5,7 = 220uF/25V
C2,10,11 = 100nF
C3,4 = 2.2uF/25V
C6,8 = 100uF/25V
C9 = 10uF/25V
IC1 = LM2005M / TDA2005