Feedback Polarity Examination of Amplifier with Multiple Input Signals
MA Youxue · Journal of Zhaoqing University · 2007
The relations between every net input signal and other input signals are analyzed in feedback amplifier.The formulas between net input signals and other input signals are given.When feedback polarity is examined,it's proved the method that only considering the influence of the first-stage amplifier input signals and omitting the influence of the others input signals is wrong.