Paralleling Power Supply Units Made Easy ???
I am considering paralleling a couple of 20a variable adjustable psu's for 40a charging. According to what I have read on the world wide inter-web, it can be done quite easily, provided the following ...
Forum Discussion
Salvo wrote:
Cross-over is the only frequency that's of concern. If the PS has 40 degrees of phase margin, and the gain in the Bode plot has a -1 slope at cross-over, guaranteed, the PS will be stable. There's no black magic here. It's all cut and dry.
You are missing the entire point...
The disturbance (other power supply output) has its own transfer function and it needs to be included in the loop equation as well as identifying its gain/phase margin.
I agree that there is no black magic in design and testing, just good engineering practices, which means its not a trial and error approach...
