| Products > Test Equipment |
| Matrix MPS-3033X 3-channel 198W Isolated PSU - REVIEW (UPDATED WITH CONTENT!) |
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| radensb:
--- Quote from: simba15 on January 09, 2023, 02:33:07 pm ---Any one seen any current links to purchase one? Sure looks like alot of ques came from the Keithley. Personally I like the 2U half rack design. That non standard probe spacing tho..... not sure if I can live with that. --- End quote --- This is the Amazon link: Matrix MPS-3033X I hear you about the post spacing. I just got boards in to fix that! Its an adapter board that mounts to the binding posts and provides an offset positive terminal that is the proper 0.75" spacing from the return terminal. (please ignore the marring on the screen - I haven't removed the protective film yet because I'm that guy...) I havent installed the post for the offset positive hole, but the below shows how it would line up. I am planning on buying these: https://www.digikey.com/en/products/detail/keystone-electronics/6096/316533 Ill probably have to turn the back hex head down to make it a bit thinner to fit behind the board, but then I can lock it in place with the nut and keep the exposed threaded section insulated with some red shrink wrap. :-+ |
| kmike:
It looks like the Itech IT6322: https://www.welectron.com/ITECH-IT6322A-Labornetzteil |
| kilobyte:
For the Turn Off Transient it would be interesting to see what happens if the output voltage is set to a low voltage like 3V/5V as there some Power Supplys like the R&S HMP2xxx/4xxx Series where the output voltage jumps up if mains power is switched off. |
| Kean:
--- Quote from: kmike on January 10, 2023, 08:01:23 am ---It looks like the Itech IT6322: --- End quote --- Yep, a BK 9130B (mentioned by OP) is rebadged ITECH IT6322. Based on the pricing and slightly different front panel this Matrix unit looks like a copy/clone rather than a rebadge... |
| radensb:
--- Quote from: kilobyte on January 10, 2023, 10:20:42 am ---For the Turn Off Transient it would be interesting to see what happens if the output voltage is set to a low voltage like 3V/5V as there some Power Supplys like the R&S HMP2xxx/4xxx Series where the output voltage jumps up if mains power is switched off. --- End quote --- Thanks for the recommendation! I added this content as sections 12, 13, and 14 to the OP. I was able to measure a small amount of voltage overshoot when an active output driving a load was shutoff by shutting the supply off (main ON/OFF switch). This behavior was hidden from my previous testing because its so small and I was DC coupling a 30V signal. I have provided AC coupled measurements over the 30V range to provide a better picture of what is happening in this scenario. |
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