摘要
低频功率放大器作为电子设备的后级放大电路,它的主要作用是将前级的音频信号进行功率放大以推动负载工作,获得良好的声音效果。基于此,设计了水声信号发生系统中的低频功率放大电路,该电路以前级放大芯片NE5532、功率放大TDA2030芯片和直流稳压电源为核心,实现了对小信号的功率放大,经multisim仿真,该电路工作稳定正常,输出波形无失真,在输出功率以及放大增益等方面均满足设计要求。
As the post amplifier circuit of electronic equipment, the low - frequency power amplifier~ main role is to amplify the power of pre - level audio signal to drive the work load, and to get a good sound effect. This paper designs a low - frequency power am- plifier used in the underwater acoustic signal generating system, the circuit takes the preamplifier chip NF_5532, the power amplifier chip TDA2030 and the DC regulated power supply as core to realize the power amplification for small signal. After the simulation with Multisim, this circuit works stably; the output waveform has no distortion and can meet the design requirement in output power and am- plifier gain.
出处
《山西电子技术》
2013年第6期3-5,11,共4页
Shanxi Electronic Technology
