I have been trying for a long time to figure this one out. Attached are some of my attempts.
Figure 1 is what my professor has given me as constants/cannot change (other than a reasonable freq; we are not too interested in extremes). We need to do it twice: one with BJT's and one with FET's. We cannot interchange the parts (like have an fet/bjt combo in one circuit) and we cannot use op amps.
If the picture is ambiguous, here are the requirements in words:
-5V (pp) input straight into a 100kΩ resistor.
-We then build the (presumably a multistage amp) circuit
-It drives a load with a resistance of 100Ω
-Output voltage across the 100Ω resistor must be 7V (pp) sin-wave
The only BJT's we use are 2N2222 (β=100), and the MOSFET can be any (resonable) simulated model (I used it with Vth about 1.5V)
I have built Figure 2 (FET model), but I have a pretty pathetic excuse for a sin wave. How can I restore my sin wave?
Figure 3 is as close as we can come with the BJT model. It looks like all we can do is level shift it and double the input. It oscillates between 3.1 and 4.3...
Any suggestions on either of these predicaments? Thanks!
Figure 1 is what my professor has given me as constants/cannot change (other than a reasonable freq; we are not too interested in extremes). We need to do it twice: one with BJT's and one with FET's. We cannot interchange the parts (like have an fet/bjt combo in one circuit) and we cannot use op amps.
If the picture is ambiguous, here are the requirements in words:
-5V (pp) input straight into a 100kΩ resistor.
-We then build the (presumably a multistage amp) circuit
-It drives a load with a resistance of 100Ω
-Output voltage across the 100Ω resistor must be 7V (pp) sin-wave
The only BJT's we use are 2N2222 (β=100), and the MOSFET can be any (resonable) simulated model (I used it with Vth about 1.5V)
I have built Figure 2 (FET model), but I have a pretty pathetic excuse for a sin wave. How can I restore my sin wave?
Figure 3 is as close as we can come with the BJT model. It looks like all we can do is level shift it and double the input. It oscillates between 3.1 and 4.3...
Any suggestions on either of these predicaments? Thanks!
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