A dual-channel-to-mono conversion circuit for class D audio power amplifiers is proposed,which can ef-fectively convert stereo amplifiers to mono amplifier.The circuit effectively reduces the output impedance of the power amplifier,reduces the dissipated power of the output power transistor,and improves the efficiency.At the same time,due to the principle of parallel operation,the total carrying current of mono mode increases,and the maximum output power of mono mode under the same total harmonic distortion is improved.
关键词
D类功放/双声道转单声道/效率/最大输出功率
Key words
Class D power amplifier/dual-channel to mono/efficiency/maximum output power