Electronics > Projects, Designs, and Technical Stuff

"over current" use of a Pulse transformer - ( or an alternative )

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mrpackethead:

--- Quote from: T3sl4co1l on December 25, 2018, 11:27:04 pm ---Nice thing is because it's intended to be a bias tee, you can intentionally unbalance it in a test, run some current through it, and measure the saturation flux on the free winding(s)!

Just gotta order up some parts and put 'em to the function generator and scope.

Tim

--- End quote ---

And TDK have really conveniently provided a little dev board which makes it really easy.   ( is ordered but i'm still 3 weeks away from getting back home ).

worse case, its not suitable, best case i have a great solution

mrpackethead:

--- Quote from: ogden on December 26, 2018, 04:42:38 am ---
--- Quote from: mrpackethead on December 26, 2018, 04:13:47 am ---Your not making any sense.  You say i fail miserably, with my assumption. ( which was that you dont' know about this specific transformer ), then you go on to say you dont' know this particular transformer in the very next sentence.      You need to live outside the datasheets a little, life is much more exciting and interesting there.        :-)

--- End quote ---

You better grow up and gain some real experience first. Then (perhaps) you will comprehend why I said what I said. Kids...  :palm:

--- End quote ---

Thanks so much for your valuable contributions. I'll keep it in mind.

mrpackethead:

--- Quote from: ogden on December 26, 2018, 05:04:23 pm ---
--- Quote from: mrpackethead on December 26, 2018, 03:34:14 pm ---Thanks so much for your valuable contributions. I'll keep it in mind.

--- End quote ---

Maybe I was too harsh. It is not nice to hear "get a life" advice from obvious noob when you know your stuff & have 25 years background of EE, managed development of various 60W+ PoE-enabled devices. You shall just take my word and rest assured - 650mA trafo will not meet the specs at 1A, no matter it is Pulse I know or TDK I do not.

--- End quote ---

Once again thanks for your contribution.    I've just ordered the sample parts,  and designed a simple pcb so i can do some base evaluation, and had some intital feedback from TDK, which indicates that this is well worth pursuing.     

T3sl4co1l:

--- Quote from: ogden on December 26, 2018, 05:04:23 pm ---Maybe I was too harsh. It is not nice to hear "get a life" advice from obvious noob when you know your stuff & have 25 years background of EE, managed development of various 60W+ PoE-enabled devices.
--- End quote ---

As I've noted many times before on this forum... what do you expect, it's only free advice.  Just a bunch of hear-say from self-proclaimed experts (not leaving myself out here ;) ) until something actually gets made, and someone else actually gets paid. ;)

Tim

mrpackethead:

--- Quote from: T3sl4co1l on December 26, 2018, 11:17:09 pm ---
--- Quote from: ogden on December 26, 2018, 05:04:23 pm ---Maybe I was too harsh. It is not nice to hear "get a life" advice from obvious noob when you know your stuff & have 25 years background of EE, managed development of various 60W+ PoE-enabled devices.
--- End quote ---

As I've noted many times before on this forum... what do you expect, it's only free advice.  Just a bunch of hear-say from self-proclaimed experts (not leaving myself out here ;) ) until something actually gets made, and someone else actually gets paid. ;)

Tim

--- End quote ---

One of the skills you need in life is to determine what 'free advice' you should take and which you should discard.     There is the weighting of information based on previous experience.  If somones given you good advice in the past, there is a good chance it will be good again. Theres the 'boast' factor.   Advice that is prefaced with  " i'm a ... with ... years of experience " normally is a good indicator to treat it with caution.   " X worked for me, becuase ..... " is a good indicator of something to look at deeper.    Advice that comes with a verifiable link... ( I got this from 'ABC' and it cost me $X )  ( www.x.com/abc/price.html) is good too.   

Its also never wise to assume the knowledge or expereince level of anyone asking a question.   You have no idea what they know. 

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