palmeiras
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How to calculate/simulate/find out the output impedance? Basic question
Hello guys,
The usual method to measure the output impedance of a circuit modeled by a VTH and RTH (Thevenin equivalent), is to measure the output voltage under two conditions: (a) without load (open condition) and (b) with a known load (Rload2)
The output stage of my circuit is a CMOS source follower with a resistor load (Rload1). Then, if I connect a second load (Rload2) in order to measure the output voltage, I'm going to decrease the RTH because the bias current will be changed.
So, how can I measure the output impedance if RTH is a function of RLOAD?
thank you very much,
Hello guys,
The usual method to measure the output impedance of a circuit modeled by a VTH and RTH (Thevenin equivalent), is to measure the output voltage under two conditions: (a) without load (open condition) and (b) with a known load (Rload2)
The output stage of my circuit is a CMOS source follower with a resistor load (Rload1). Then, if I connect a second load (Rload2) in order to measure the output voltage, I'm going to decrease the RTH because the bias current will be changed.
So, how can I measure the output impedance if RTH is a function of RLOAD?
thank you very much,
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