论文部分内容阅读
(续2000年第2期第36页)(4)功率放大装置(ＳＰ)功率放大装置的输出电流用于驱动伺服电机运动,其原理框图见图7。功率放大装置由前置放大级(Ａ)、中间放大级(Ｂ)和功率输出极(Ｃ)三部分组成。图7 功率放大装置原理框图①前置放大级误差放大板的输出信号首先进入前置放大级,前置
(Continued on page 36 of 2000 page 36) (4) Power Amplifier (SP) Power Amplifier output current used to drive the servo motor movement, the block diagram shown in Figure 7. Power amplifier consists of preamplifier stage (A), intermediate amplifier stage (B) and power output pole (C) of three parts. Figure 7 power amplifier device block diagram ① preamplifier level error amplifier output signal first into the preamplifier stage, pre