【摘要】 引入电流负反馈会使放大电路的输出电阻变大,这种变化在实验测量时几乎没有出现。我们在分析原因后,提出了一种简单、易行的解决方案,并且对电路参数进行了合理化设计,使实验效果非常理想。更多还原

【Abstract】 The current negative feedback will change the output resistance of an amplifier,this change in the experiment almost not been seen.We analyzed the reasons and improved the circuit and so that the experiment was very satisfactory results.更多还原