Products > Test Equipment
Rigol DP832 remote command update rate????..............
<< < (4/4)
Smokey:
True.  Important to point out.  We need to remember it's still a bench supply after all. 
I don't think that would be much of an issue for my original application of a FET classifier.
alm:
There are systems power supplies with an active down-programmer that can slew much faster, because in a systems application that might translate to increased throughout.

But for a curve tracer you're not likely to need to slew very fast, indeed, as long as you're not doing pulsed measurements. How about the readback sample rate? Is it also faster?
RoGeorge:
A power supply can only source current, it can not sink current.  It has electrolytic capacitors at output, and thus the slower discharging time when the output is left without a load.  Otherwise I found it fast enough for a power supply.

When remote controlled, the '*OPC?' command is supposed to tell when a command is completed (in this case when the voltage settled to the requested value), though I never tested that in my DP832.

For fast settling there are 4 quadrant power supplies that can both source or sink current, often called SMU, but that's a different type of instrument.
alm:
A limited sinking capability is common in more high end power supplies. The old HPAK 6632A/B for example. As I said before, they do this because it's important in automation. This only provides two quadrants: no negative voltages without changing connections. GW-Instek also has a power supply that can sink current. I would expect it to also have a faster down programming speed. But clearly not in these supplies.
Navigation
Message Index
Previous page
There was an error while thanking
Thanking...

Go to full version
Powered by SMFPacks Advanced Attachments Uploader Mod