Free Circuit Diagram

For battery operated devices, this class D amplifier is suitable because its high efficiency (85%) helps extend the battery life. In the internal circuitry, a boost converter  with over 90% efficiency is provided to step-up the voltage supply, and need only one external inductor as the additional component for this function. When driving 8 ohm [...]

This class-D audio power amplifier is suitable for TV and home stereo set. TDA7882 IC chip provides class-D audio power amplifier solution. Since this chip has only mono channel, you need two pieces of this circuit for stereo application. The power supply voltage is flexible, accept (+-)10V to (+-)25V. This circuit needs a split supply [...]

The combination of class D amplifier controller LM4651and power MOSFET package LM4652 gives compact and robust high efficiency class D power amplifier solution. This circuit is ideal for car booster amplifier, active speaker/subwofer, home theater, or PC’s multimedia sound system.  The maximum efficiency 85% is obtained at 125W power output condition. The total harmonics distortion [...]