Recent content by mt1200

Aren't you suppoused to use derivatives and integrals to find the space state solutions?, I'm not sure if I can use Laplace to solve this problem. last night I realized that it's really confusing, if I try to create the space state matrixes I get something like this: Vc1' Vc2' IL'...

Yeah, this is what I've been trying: There are two meshes and one node in that circuit. So for Node 1: IC1 = IL + IC2 C1dV/dt = IL + C2dV/dt That's the first equation. For Mesh #1: Vi = VC1 + VL Vi = 1/C ∫ic1 + LdiL/dt VC1 = Vi - LdiL/dt For Mesh # 2: VL =...

But the system may become impossible to solve if I pick some random state variables I want.

Try to apply millman's theorem

Homework Statement Find the state space solution, the output is Vo Homework Equations VL = L*di/dt IC = 1/C*(integral of current) KCL KVL The Attempt at a Solution I tried to apply KCL and KVL but still can't figure it out. This one has been driving me nuts for 4 days.

I think it's called "invalid state", you may try to add some control logic gates to enable and disable the SR latch

Hi, it's me again, as you may know I've always have had a very hard time with circuit analysis. How can you possibly know which states variables are you suppoused to use in second or third order circuits?. Let's say you have to do the following exercise: If you want to obtain a...

It was a lab excercise, I don't know if that counts as homework. Anyways, that was some weeks ago, I only have some questions in my head because I could never get the output gain I wanted.

Sorry guys I don't have my circuit's snapshot here, I'll upload it as soon as I can. Well, yes, I remember that first I used the common-base biasing, and got frustrated due to the 130X gain even if my calculations pointed to 150. Then I moved to the common-emitter amplifier and the same thing...

Hi guys. I learned that you need to apply DC biasing to establish your transistor's amplification zone. Some weeks ago I was struggling (as almost we all do with anything related to E.E.) with transistor amplifiers. I had to make 3 amplifiers with 3 different biasing configurations. I...

Do you have any voltage or current sensors?, can you rewire them to any backup low cost PLC?.

Hi guys thanks for your replies and interest in this topic. I found this: http://www.virtual.unal.edu.co/cursos/ingenieria/2001601/docs_curso/contenido.html If you can read spanish please have a look at chapter 6. Basically those are my circuits but in DC voltage levels instead of...

Yes psparky, I started reading this topic since last sunday, but I have to make hurry because I also have to read other courses' lessons and take some tests . I don't have too much ( or no) time because I'm working fulltime and pursing my major though distance learning, that's the reason why I...

Hi people. I started my AC circuits course in college, but this stuff is either too tough or I probably don't have some math prerequisites. By the way, I'm just starting my differential equations course, but I haven't had any time to study just because AC circuits won't let me make any...

Thanks, that means that as the function's first derivative is negative, its slope its also negative and therefore the function its decrecent!, that makes sense, but how can it be also zero?