Hi all,
I've been trying to spec a suitable transformer based on the Power Designer generated design I've got for a 12-24V to 5V 3A isolated power supply.
The ideal transformer is described as;
Ns1toNp= 0.376
Ns2toNp= 0.728
Two things I find confusing about this; these two metrics seem to describe a ratio between a dual secondary to single primary transformer, but the generated design report clearly shows a dual primary to single secondary, is this a misinterpretation?
Secondly, I've spoken to Wurth about this and they've suggested the 750311589 and 750311597 transformers (datasheets attached), are these suitable for the given spec?
I'm not a power engineer, so I'm in the dark as to how these are wired also, it looks like the Ns1toNp could be satisfied by a single 3:1 ratio coil arrangement but the Ns2toNp would have to be two 3:1 ratio coils in series?
Thanks in advance for any help you can provide.