First post.
This is methods from Endless-Sphere and other forums. I am trying to put my lab back together and need a few ~1KW Power Supplies. I have owned 20 or so Sorensen DCS supplies and they are (IMHO) an incredible value. Run them series, parallel, under remote control... They work great.
At one point, I rambled on about them. Not a great thread, but some information to get you started if you are troubleshooting one.
https://endless-sphere.com/forums/viewtopic.php?t=95184Buying them used is a bit of a gamble. Most important, you dont want to get burned by the model with the 5A current limit (unless you know how to undo it). Other than that, I have found that the most common failures are:
Symptom: Overheat
- Bad Fan (dont get caught up buying *just* the right fan, any $20 fan that fits mechanically will do the job fine)
Symptom: Low or no output, power not developing rail to rail, excessive ripple
- Dry Caps (Just grab some Electrolitics that meet or exceed what was in there. I have cobbled many fixes that worked)
These are the sorts of issues you will find if you buy blind on Ebay 3 at a time. Whenever I start up a new lab or convert a garage for a startup I grab a few of these supplies off Ebay. I have had them as cheap as $200, and paid as much as $400 (none with GPIB)... a few months ago prices were super low and at this exact moment of posting prices are a bit high (Covid).
...
Anyhow,
I really need a few Power Supplies that can run off 120 Single, put out on the order of a KW, and my personal preference is a range up to 60VDC... as I charge a lot of batteries. I would not mind getting to know a new brand of supply, and I prefer (not require) the ability to program (even if analog - anything but preferred).
NOTE:
WARNING, if you charge batteries (like... ebike) with a DCS you need to either *always* remove the battery before shutting off the supply or run a Diode or Ideal Diode inline with the output. Failure to do so will result in the sugar-load smoking in the back of the supply. (bleeder resistor)
Good day to you
-methods