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:
Having designed many dc/dc converters, I see this stability issue way over blown. If the ps has a phase margin of 45 degrees, then guaranteed, there's no stability issues. 30 to 45 degrees of phase margin is standard design practice.
When paralleling 2 supplies that are not designed to be paralleled together, you are effectively injecting a dynamic disturbance into each supply's independent feedback control loop.
The gain/phase margin around this disturbance loop is quite different so instability could become an issue.
