Basde on further, analysis of formula D=1-AF, this paper points out the conflict when using instantaneous limit and jadging positire and negative feedbavk byusing the depth of peedbavk, range of middle freguency of pnegative feedback AMP circuit can also
Basde on further, analysis of formula D=1-AF, this paper points out the conflict when using instantaneous limit and jadging positire and negative feedbavk byusing the depth of peedbavk, range of middle freguency of pnegative feedback AMP circuit can also
摘要通过对公式D=1-AF的进一步分析，指出用瞬时极性法与用反馈深度判定正负反馈时所出现的矛盾，说明负反馈放大电路的中频段也会出现自激的情况。