remote controlable complex electronic load

[unclebob]

Hello,

I am looking for an electronic load that does not only simulate an ohmic resistor but a complex impedance.

Background: We are facing problems with 24V highside/lowside switches when they are exposed to capacitive or inductive loads.
In the nicer cases short circuit detections are detecting a short circuit when you switch a capacitive load, in the nastier cases there
are oscillations.

DC electronic loads are pretty common but do you know about a solution that can simulate inductive/capacitive loads in combination with a
resistive load to simulate a relay for example? I would like to have a remote controlable unit so that I can automatically test and qualify the
parts over a given R/L/C range.

Does such a thing exist?

[Neomys Sapiens]

Fast 4 quadrant amplifier + AWG?
4QA for example Kepco, Spitzenberger & Spies, Dr.Hubert, Rohrer

[GlowingGhoul]

You didn't mention your wattage requirements, but this Chroma has a constant capacitance mode, and is remotely controllable:

https://www.chromausa.com/product/benchtop-dc-electronic-load-63000/

https://www.chromausa.com/dc-loads-get-exclusive-features/