| 电子管耳机放大器输出级电路分析 |
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| 引用本文： | 周静雷,行露,贺晓宇.电子管耳机放大器输出级电路分析[J].电声技术,2009,33(2):17-20. |
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| 作者姓名： | 周静雷 行露 贺晓宇 |
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| 作者单位： | 西安工程大学,电子信息学院,陕西,西安,710048 |
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| 摘 要： | 以电子管微变等效电路分析为基础，分析了在电子管耳机放大器中常用的4种输出级电路。针对阴极跟随器，SRPP，WCF和SEPP这4种电路进行了理论计算，得到了电压增益、电流增益和输出阻抗的解析表达式，并利用仿真软件对这些分析结果进行了验证。为电子管耳机放大器设计提供了计算方法。
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| 关 键 词： | 阴极跟随器 并联调整式推挽放大电路 单端推挽电路 微变等效电路 |
Tube Headphone Amplifier Based on Slight Variation Equivalent Circuit |
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| ZHOU Jing-lei,XING Lu,HE Xiao-yu.Tube Headphone Amplifier Based on Slight Variation Equivalent Circuit[J].Audio Engineering,2009,33(2):17-20. |
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| Authors: | ZHOU Jing-lei XING Lu HE Xiao-yu |
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| Institution: | Electronic Information College;Xi'an Polytechnic University;Xi'an 710048;China |
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| Abstract: | Based on vacuum tube slight variation equivalent circuit analysis,four kinds of output circuits used in vacuum tube headphone amplifier generally are analyzed.Cathode follower,SRPP,WCF and SEPP are calculated in theory,and the analytic expressions of voltage gain,current gain and output impedance are deduced.The analyzed result is verified by using simulation software.The calculation methods are provided for the design of headphone amplifiers. |
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| Keywords: | cathode follower SRPP SEPP slight variation equivalent circuit |
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