Products > Test Equipment
Bipolar power supply and if possible load? GPP-4323 vs something else
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loki42:
I'm looking for a multi output power supply to use for op amps, audio etc +15 -15 v +9 -9. Max voltage range +15 -15, max current < 1 amp. Need 2 outputs but more would be fine. I'd also be interested in a bipolar load for testing power supply behaviour (noise at different currents, efficiency etc). Is the GPP-4323 the best option? Can it work as a bipolar load? Price range is pretty flexible. I have a Agilent 2 quadrant PSU/SMU now but it's only 1 channel. I'd also like something less loud. Looking for new and in stock.

Is there a Keysight, AIM TTI or R&S that would be better? I also need LAN.
loki42:
main units I'm looking at are R&S HMC8043, E36311A (and similar) MX180TP and the GPP-4323.
pope:
I'm also interested!
mawyatt:
The GPP-4323 can't do bipolar loads, and the range for the outputs is 0-32V, 0-32V, 0-5V and 0-15V for channels 1-4 respectively. We have and use one and it's a nice PS for GP lab use.

Best,
Hexley:

--- Quote from: loki42 on June 07, 2022, 11:31:57 am ---Is the GPP-4323 the best option? Can it work as a bipolar load?

I also need LAN.

--- End quote ---
Some comments from a GPP-4323 owner:

* If you only need a single quadrant at a time, you can use the GPP-4323 as a load for either positive or negative supplies since the load inputs are floating. For a positive supply you would ground the negative load terminal and connect the positive rail to the positive load terminal. For a negative supply you would ground the positive load terminal and connect the negative rail to the negative load terminal. Since there are two independent load channels, you can set one up for positive supplies and the other for negative supplies and then you could load, say, a +/- 15 volt supply symmetrically.
* All current-production GPP-4323 include the LAN. Used to be an inexpensive option; they finally did the obvious thing and rolled in into the standard configuration.Hope that helps.

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