Electronics > Projects, Designs, and Technical Stuff
Design ideas for a low-count part, low power isolated DC-DC power supply?
<< < (6/10) > >>
Giaime:
I used these in the past:
http://www.ti.com/isolation/transformer-driver/products.html

With those transformers:
https://katalog.we-online.de/en/icref/SN6501-Rev-G_Push-Pull_4?sid=3832d0653a
schmitt trigger:
Thanks for bringing the Royer converter.
Indeed, it cannot be any simpler, component wise, than this converter.

Although a caveat, if I recall correctly, is that the transformer core should employ a “square loop” material for optimal efficiency.
But for the low power level involved, perhaps any power ferrite may be sufficient.
ezalys:
You might consider a resonant royer... think royer but with the primary shunted with a capacitor.
Wolfgang:
Hi,

a square hysteresis loop material is no requirement. A normal transformer is absolutely sufficient at small power levels.
I used old ISDN transformers for my low-noise converters and some energy harversting experiments, also employing Royer
converters:

electronicprojectsforfun.wordpress.com/energy-harvesting/
ezalys:
Also, how many layers are you targeting? You might just stick the transformer inside the PCB... then the inductor is zero parts. Then you do resonant royer or forward or something.
Navigation
Message Index
Next page
Previous page
There was an error while thanking
Thanking...

Go to full version
Powered by SMFPacks Advanced Attachments Uploader Mod