Solved: A CG amplifier operating with gm = 2 mA/V and ro = 20 k is fed with a signal
Chapter 8, Problem 8.52(choose chapter or problem)
A CG amplifier operating with gm = 2 mA/V and ro = 20 k is fed with a signal source having a Norton equivalent composed of a current signal isig and a source resistance Rs = 20 k. The amplifier is loaded in a resistance RL = 20 k. Find Rin and io/isig, where io is the current through the load RL. If RL increases by a factor of 10, by what percentage does the current gain change? Can you see the effectiveness of the CG as a current buffer? D
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