摘要
以包含自举电路的共阴式倒相电路作为输入级,以SEPP电路作为输出级,设计了一款高保真耳机放大器。基于电子管微变等效电路分析方法,计算出输入级和输出级电路的主要参数,并对整个放大器的开环和闭环参数进行了分析,文中还采用客观测量和主观评价的方式对该放大器的性能进行了说明。
A high fidelity headphone amplifier is designed in this paper, which contains the co-cathode inverse phase circuit including the bootstrapping as the input entry, and SEPP circuit is used as the output entry. Based on analysis of vacuum tube slight variation equivalent circuit, the primary parameters of the input and output entry are calculated and the open-loop and closed-loop parameters of the whole amplifier are analyzed. In the end, the function of the amplifier is explained through impersonal-measurement and subjective evaluations.
出处
《电声技术》
2009年第12期28-32,共5页
Audio Engineering
关键词
共阴式倒相
自举电路
SEPP
耳机放大器
电子管
微变等效
co-cathode inverse phase
bootstrapping
SEPP
headphone amplifier
vacuum tube
slight variation equivalent
