摘要
介绍制作具有小信号放大能力的低频功率放大器的基本原理、内容、技术路线.整个电路主要由稳压电源、前置放大器、功率放大器、波形变换电路共4个部分构成,电路结构简单,所选器件价格便宜,并给出了测试结果.实验结果表明该功率放大器在带宽、失真度、效率等方面具有较好的指标、较高的实用性,为功率放大器的设计提供了广阔的思路.
This paper briefly introduced the basic principle, contents and technical route of the power amplifier of low frequency signal. The entire circuit is divided four major parts: The part of the supply, preamplifier, power amplifier and wave-changing circuit. The structure of this circuit is simple and the price of components is cheap. results of experiments shows that the power amplifier have good performance in some aspects, such as bandwidth, distortion factor, efficiency, and so on. It will put forward a broad approach to design of power amplifier.
出处
《沈阳化工学院学报》
2005年第1期50-53,56,共5页
Journal of Shenyang Institute of Chemical Technolgy
关键词
功率放大器
失真度
带宽
power amplifier
distortion factor
bandwidth
