Constant Voltage on a DC Electronic Load. What power supply to use?

[ttttrigg3r]

This is a little confusing to me, perhaps one of you fine people can help.
I have a GW Instek PEL-3032E DC Electronic load. It has a Constant Voltage mode which clamps the voltage at whatever setting. Is it possible for me to use an autoregulating power supply such as HP 6032? The power supply switches between CV and CC mode automatically, so I cannot force it in one mode.
So now I'm having the load and the power supply kind of fighting each other. Not sure what to do here.


https://www.gwinstek.com/en-global/products/detail/PEL-3000E

[Kleinstein]

In constant votlage mode the electronic load is a kind of high power precision zener diode. So it can consume excess current, but it does not provide power.
The power would need to come from an external supply, e.g. as a constant current source.
A usual lab supply could be set to a votlage slightly higher than the load voltage and would thus be in CC mode all the time.
Still chances are the lab power supply would be better in providing a constant voltage and the power consumption is usually lower. The electroinc load version would allways take the maximum power.

[ttttrigg3r]

Thank you!
I tried this. Here's what I learned.
You want your PS voltage to be slightly higher than the load. Here slightly higher means exactly that... My PS voltage setting was 20V, 1A. The load UUT setting is CV, 19.5V. This setting however trips the load over current protection for that range, which is 1.5A. I think the load is trying to draw higher current to make up for that gap.
Next I set the load UUT setting at 19.9V. This voltage gap between the load and PS is smaller than before. Now, it works as expected. The Load is clamping at 19.9V and current reading is ~.8A. I also see that the power supply engages Constant Current (CC) mode. I adjust the PS current output from 0.5A to 1.5A, and the current draw of the load follows the adjustment accordingly. The voltage stays at 19.9V the whole time.