Archives for the ‘Audio’ Category

18W Bridge Amplifier using Dual TDA2003

The following schematic diagram is the diagram of 18W power amplifier. This amplifier built using 2 pieces of power ICs of TDA2003 with bridge connection (dual TDA2003). A TDA2003 gives 10W power output.

Circuit design:

18W TDA2003 bridge amplifier circuit

PCB layout:

35W Amplifier Circuit based STK082

amplifier 35W stk082

Above circuit is an amplifier circuit which built based on single power IC STK082. This is a very simple and easy electronic project to built, very nice for student’s project.

LM4756 : 7W Stereo Audio Amplifier

The following images is the schematic diagram and PCB layout of 7W stereo audio amplifier, build based LM4756. It means that the output of this stereo amplifier will be 2x7W maximum.

Schematic diagram:

amplifier LM4756