I'm currently choosing some flyback transformers to test. The coilcraft website is pretty good for that and they have a datasheet containing all of the ones they have available.
Some of them are rated at for example 12V input and -48V output. Does this mean the input and output are 180 degrees out of phase?
I'm currently choosing some flyback transformers to test. The coilcraft website is pretty good for that and they have a datasheet containing all of the ones they have available.
Some of them are rated at for example 12V input and -48V output. Does this mean the input and output are 180 degrees out of phase?
No. The DC output can be either polarity depending upon the orientation of the rectifier diodes. The reason for the negative is that some standard telecom supplies are -48V.
Ah I see, thanks for the comment. I ended up buying 10 different transformers, they are surprisingly complicated and I'm expecting a lot of them to be not much use.