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currently ,i have research the loop gain and close loop gain of the normal amplifier for a long time.and also use the TINA to simulate the amplifier to study how to judge if the amplifer is stable or not.
normally ,we need use the AF(loop gain) curve to judge if the amplifer circuit is in oscillating status or not.
my question is the bode plot curve which we get from the TINA when we simulate a close loop amplifier circuit is loop gain curve or the close loop curve.
since i usually use the curve to judge the status of the amplifier circuit. i would presume the curve is loop gain.if it is ,there is no problem
but ,i think the curve would denote the close loop gain. so if the curve denote the close loop gain, how could i use this curve to analyse status of the amplifier circuit.
