【摘要】 从不同角度阐述了用瞬间极性法判别反馈放大器反馈的极性及其规律,归纳了最快捷的口诀、巧记方法,提高了教学效果。更多还原

【Abstract】 This paper expounds how to distinguish the feedbacks polarity and law of the feedback amplifier through instantaneous polarity law, concludes the fastest pithy formula, the ingenious way for remembering from different directions this improves teaching effects.更多还原