i want to find the voltage gain of this circuit.
so i tried to set input signal = 0 and assume the virtual Voltage source, Vx.
because i thought that find Vx/ix (Resistance at out) first, and than multiply -'gm' , the result is A.
1. is this way correct?
2 are there any circuits which cannot use this method(assume virtual V source and set input to GND)?
3. if 2. is Yes, what kind of circuit cannot use this method?
Im really sorry about my bad english but im waiting your answers. thankyou
so i tried to set input signal = 0 and assume the virtual Voltage source, Vx.
because i thought that find Vx/ix (Resistance at out) first, and than multiply -'gm' , the result is A.
1. is this way correct?
2 are there any circuits which cannot use this method(assume virtual V source and set input to GND)?
3. if 2. is Yes, what kind of circuit cannot use this method?
Im really sorry about my bad english but im waiting your answers. thankyou
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