150W Car Audio Amplifier

150W Car Audio Amplifier
This is the circuit design of 150W car audio amplifier. The circuit is divided in two block diagrams: The tone control circuit and power amplifier circuit. Tone Control for 150W Car Audio Amplifier The tone control circuit build based on IC LF353 In stereo mode, we shall have the action of eight loudspeakers which are going to create a very important sound pressure. Tone Control Scheme (more…)

Quad amplifier 40W

Quad amplifier 40W
This circuit provides a total of four speakers 4 ohms and 40W at 12v powered. It is therefore ideal for use in the car. Total harmonic distortion is rather high, about 10% at full power. But with half the power requirements (20W) is less than 2%. Anyway it is not intended to have a high performance system in the car. (more…)

30W, 4 channel car amplifier

30W, 4 channel car amplifier
This 4 channel car amplifier comprises only with a single TDA7386 integrated circuit and a few additional components, four independent amplifier channels to build a true multi-channel audio system. Based on the chip was originally designed for car audio, but this amplifier is also ideal for computers with a sound card as the SoundBlaster Live! Creative Labs Inc or Diamond Multimedia Monster Sound / S3. (more…)