Recent content by bergen89

Thanks a lot for you respons. I really appreciate it. Do you know what the formula is, or where I could find it? I have seen in the book, but can't find it. Also I have added what I done in the first task. Should I use the result from that? I got 50 ohm.

Homework Statement A lossless transmission line has an inductance of 9.0 nH / m and a capacitance of 3.6 pF / m. a) What is the line's characteristic impedance? b) Calculate the phase constant of a frequency of 1 GHz. Homework Equations Equation of characteristic impedance of a transmission...

Thanks a lot for your respond. 2 is easy and I have found a way to to this. 1 and 2 what kind of micro kontroller do you suggest? How hard is this to program, or is it micro kotroller who is ready to use? I have programmed micro kontroller before, but it has been easy program's. I see that...

Thanks a lot for your responses. I have created a new drawing that's shows better what I would like to accomplish.The reason I would like to use Ethernet is because I would like to learn more about ethernet, and it is easy to connect more devices on both side, and I would also like to learn more...

Hi, I would really like to make a system who takes a Microfone(Analog signal) convert it to a Ethernet(Digital signal) and in the end convert it back to Speaker(Analog signal). How would be the best way to do this? I have thought about using a raspberry pi or a micro controller. But do anyone...

Im stuck on were to begin. I have tried to do the AC analysis (T-Modell on both, because ressistor at emittor), I know the gain (100), so I hope then to find the ressistor components. But the answer does not look to good to now, but is that the right way to start?

To goal with the taks is to: 1. Selection of working point. This choice depends on the signal strength of the output signal. 2. Selecting the component values so that the working point is very little dependent on the transistor data. 3. Calculate the gain factor, first an estimate so that one...

Thanks for you respone Svein. I am quite sure a wrote the wrong thing about negative feedback. I am quite new to this. But if I am going to use the circuit above. What would be the first step to to. What I have read to now is that I should do a dc analysis, to find out if the transistor are in...

No, to now I try to use the t-modell (Because of the two reisstor at Emittor).

Thanks for your answer! :) Would the beste think to do; 1. transistor ac analysis. (Because we know that the gain should be 100) 2. Give the ressistor values, so we have the gain of 100.

< Mentor Note -- thread moved to HH from the technical engineering forums, so no HH Template is shown >[/color] Hi, I have a task to create a two-stage amplifier without feedback. It shall be made with these requirements; It shall be connected to a source of internal resistance equal 2.2kΩ...