Design of power supply for intellgent power amplifier based on DSP

This paper designs a new type of the control system of switcing power supply for audio power amplifier,which is used in DSP-controlled power amplifier.The basic frame and the software and hardware design of the system are described.The system uses TMS320F2812 as the main controller,to reduce the hardware circuit structures,and realize the audio power amplifier digital control.The experimental results show that the design has good regulator function,which not only satisfies a certain control accuracy,but also meets the real-time requirements,and has great future in high audio power amplifier.