虫虫首页|资源下载|资源专辑|精品软件
登录|注册

您现在的位置是：虫虫下载站 > 资源下载 > 笔记 > 音频放大器设计

音频放大器设计

资 源 简 介

This design uses Common-Emitter Amplifier (Class A) with 2N3904 Bipolar Junction Transistor.

  • Use “Voltage Divider Biasing” to reduce the effects of varying β (= ic / ib) (by holding the Base voltage constant) 
  • Base Voltage (Vb) = Vcc * [R2 / (R1 + R2)] 
  • Use Coupling Capacitors to separate the AC signals from the DC biasing voltage (which only pass AC signals and block any DC component). 
  • Use Bypass Capacitor to maintain the Q-point stability. 
To determine the value of each component, first set Q-point close to the center position of the load line. (RL is the resistance of the speaker.)

相 关 资 源

您 可 能 感 兴 趣 的

虫虫下载站版权所有 京ICP备2021023401号-1