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Here is what I'm thinking of doing. As the chassis are isolated do I need to worry about them touching or people touching them? The manufacturer does recommend some diodes and I'll give them a call on Monday to double check.
Could you explain this a little more. I was planning on isolating the metal cases of the SMPS from each other and the connection to ground would be on the AC side of the first power supply (the +24V one).
Yes thanks, my plan is to connect AC live, neutral and ground to one supply and then live and neutral to the second supply leaving it's ground to float. I'll make sure the supply cases are well insulated from eachother. Then I'll connect the output DC ground of the grounded supply to the +ve DC...
FYI I just found this on the manufacturer's website so it looks ok for series connection with the diode protection and a caveat about ripple. I'll call them up and ask about part recommendations for my application. I assume I'll need a diode with a forward current of around 6A ...see page 14...
I'm driving a galvanomter and it needs +/- 24V @ 5A. A dual bench supply is expensive, linear supplies are also expensive and heavy so I thought I'd see if a couple of switchers in series to create a bipolar +/-24V supply would work.
I want to connect two 24V, 6.3A power supplies in series to make a +/- 24V supply. The supplies are PMK150S-24E
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The maximum current draw should be 5A.......what reverse polarity protection diodes would you spec (if any)? a part number would be great!
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