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Author Topic: T parameters of a two-ports circuit  (Read 1390 times)

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Offline NexoTopic starter

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T parameters of a two-ports circuit
« on: June 03, 2018, 12:45:35 am »
Hello everyone!
I just finished my third exam and I know I won't get a good grade so I'd like to know how to correctly solve this problem:

I'm asked to find the T parameters of the circuit shown in the attachment.
1. I know that A is in parallel and I already did that part; well, I have the Z parameters and I was thinking about finding the Z parameters of B as well because A and B are in series so I could just add them up and then transform it into T parameters ¿is this a good approach or what would you recommend?
2. How should analyze the B part of the circuit? some friends said that there are 3 two-ports in series but I can't seem to figure it out.

Anyy help will be very much appreciated.
Thanks in advance!
« Last Edit: June 03, 2018, 02:11:47 am by Nexo »
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Offline NexoTopic starter

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Re: T parameters of a two-ports circuit
« Reply #1 on: June 03, 2018, 08:40:33 pm »
Anyone, please? I just need ideas, not actual math.
Thanks in advance!
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Online T3sl4co1l

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Re: T parameters of a two-ports circuit
« Reply #2 on: June 03, 2018, 10:28:33 pm »
I think you need to do the T of both, then multiply them together.  I forget the rules for Z, but if adding works then yeah, that too. ;D

I don't get the crossover in B, it's just there to confuse... just use whatever (matrix or wye-delta?) reduction you want to solve that with.

Tim
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Offline NexoTopic starter

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Re: T parameters of a two-ports circuit
« Reply #3 on: June 10, 2018, 06:24:14 am »
I've already solved and I'm going to post the photos next week. Thank you very much!
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Offline The Electrician

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Re: T parameters of a two-ports circuit
« Reply #4 on: June 14, 2018, 02:58:45 am »
Quote from: Nexo on June 03, 2018, 12:45:35 am
1. I know that A is in parallel and I already did that part; well, I have the Z parameters and I was thinking about finding the Z parameters of B as well because A and B are in series so I could just add them up and then transform it into T parameters ¿is this a good approach or what would you recommend?

What did you get for the Z parameters for part A?  And what do you get if you transform to T parameters?

You can't get the overall Z parameters by adding the Z parameters for the A and B parts separately.
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Offline The Electrician

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Re: T parameters of a two-ports circuit
« Reply #5 on: June 19, 2018, 12:38:01 am »
I'm going to be disappointed after going to the trouble of working out a solution if you don't come back and show your results.  ;)
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Offline NexoTopic starter

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Re: T parameters of a two-ports circuit
« Reply #6 on: September 01, 2018, 07:32:42 pm »
I'm so sorry for not posting before, I was really really busy with a lot of stuffs, I'm goint to solve it again because I lost the pages on which I had the answer and post it.
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Offline The Electrician

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Re: T parameters of a two-ports circuit
« Reply #7 on: September 01, 2018, 09:15:19 pm »
I'm looking forward to seeing your result.  :)
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Offline The Electrician

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Re: T parameters of a two-ports circuit
« Reply #8 on: September 27, 2018, 04:54:07 am »
Did you get lost again?
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