Class D Amplifier Circuit Diagram. The circuit diagram and pcb layout are available here. The power output is up to 900w with hifi audio quality.
Irs2092 Stereo Class D Amplifier Schematic Circuit Diagram from circuit-diagramz.com
The circuit is the simple and high efficient amplifier circuit will provide up to 500 watts output. For comparison the class b amplifier can only achieve a maximum efficiency of 78 5 in theory. Class d class d audio amplifier is a switching amplifier or pwm as previously explained.
The block diagram of a class d amplifier is shown in the figure below.
A comparator has two inputs namely input a and input b. The input audio signal is used to modulate the pwm carrier signal that drives the final amplifier. Class d is the only option for combining all these requirements together. The block diagram of a class d amplifier is shown in the figure below.
