【摘要】 研制一套以单片机ＰＩＣ１６Ｃ５４为核心的专业音频功率放大器控制系统。根据所检测的负载阻抗大小自动选择工作电压，提高了放大器对扬声器系统的适应性；在负载阻抗过小时的强制关机，增强了功率放大器的使用安全性。更多还原

【Abstract】 The control system of professional audio power amplifier is developed ,centered around MCU controller PIC16C54.The adaptability to various speaker systems has been improved while the working voltage can be automatically selected according to the detected loadimpedance.The safety has been enhanced while the amplifier can be forced to be offline if the loadimpedance is too low.更多还原