Digital Power Amplifier Circuit Diagram. Parametric and sub woofer equaliser. Ttc5200 is npn transistor and tta1943 is pnp transistor.

Digital audio volume control circuit using pt2258 ic and arduino. Because of this the amplifier does not generate a lot of heat and does not require a big heat sink like linear class ab amplifiers do. In an amplifier chain system the power amplifier is used at the last or final stage before the load generally the sound amplifier system uses below topology shown in the block diagram.

Theory behind power amplifier circuit.

Many power amplifier circuit diagram with pcb layout. As you can see in the above block diagram power amplifier is the last stage which is directly connected to the load. A transistor biased in class ab mode produces an amplified output signal for only one half of the input signal. 5 are ttc5200 and another 5 are tta1943.