Cecemel
Member level 5
Hi,
I need a 100-150w isolated power rail.
Here’s how I would probably try to achieve this: drive a transformer with a half bridge and a 555 generated high frequency square wave, rectify the output of the transformer, add a capacitor, use a linear or switching converter to get a more stable output.
A few questions:
Thanks
I need a 100-150w isolated power rail.
Here’s how I would probably try to achieve this: drive a transformer with a half bridge and a 555 generated high frequency square wave, rectify the output of the transformer, add a capacitor, use a linear or switching converter to get a more stable output.
A few questions:
- Is this a good way to do it?
- Should I drive a transformer with a square wave? Won’t this have a negative impact on efficiency?
- What frequency should I use? I was looking at this transformer but it doesn’t mention a frequency in the datasheet.
- Is it ok to leave coils unconnected?
Thanks