Power Supplies: Linear vs. Switching

Dongleboy

Member
Join Date
May 2003
Location
VA
Posts
9
Fellow associates,

I would like to solicit some feedback regarding your preference of external power supplies used in control systems. Specifically, linear vs. switching.

I am well aware of the differences between the two in regards to efficiency, noise, etc, but I would like the opinion of the experienced.

Kindest regards,

Dave
 
I generally use a switcher in new installations.
Smaller, cooler, and more efficient. Hard to lose.
I find that any industrial duty electronics - prox, PLCs, solenoids, etc. have no problem with the switcher.
 
Same here. I have been using the ones that run off of 480VAC three phase. If it weren't for the laptop plug-in outlet requirement, some of our machines wouldn't have a control transformer.
 
Why bother with expensive regulated power supplies for operating solenoids and contactors?
A single-phase bridge & capacitor should be adequate.
A 3-phase full-wave bridge with no filtering would do nicely.
 

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