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| Bench power supply suggestion |
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| ali_asadzadeh:
Hi, I want to buy one of these models, GPP-4323 from GW-instek, my main problem with this is higher price, harder availability and Ethernet is optional. HDP4424B from Hantek it's the same price as owon, it seems more polished and has 4 channels, I can get it around 300$ lower cost than GPP-4323 ODP6033 from owon it has 3 channels only and less pricy Any other model under 800$ you would recommend? |
| mawyatt:
We have 3 of the Siglent SDP3303X-E (easily enhanced to a X) and a GW 4323. The GW is nice with 4 channels, but the screen is small for viewing all 4 channels, and AFAIK does not offer user calibration. The Siglent has only 3 channels, but the display is easier to read for displaying 2 channels (3rd channel does not display), and has a somewhat quirky UI (which is easily mastered) & non-standard terminal spacing, but offers user calibration. These are really good lab supplies and accurate, however the one we always reach for in quick usage is the Siglent, the GW is seldom used unless a complex task is at hand requiring multiple PS channels. For the $400 the Siglent is tough to beat, especially when so easily "enhanced" to the X version (1mv and 1ma resolution). Honestly you can't go wrong with either, but don't know about the others you've mentioned. Don't forget to get the EEVblog discount if you go with a supporting supplier like Saelig here in US. Best, |
| nctnico:
For me a numeric keypad is a must on a digitally controlled PSU. Otherwise you keep turning the encoder endlessly. |
| Hexley:
--- Quote from: ali_asadzadeh on October 23, 2022, 03:46:32 pm ---GPP-4323 from GW-instek ... Ethernet is optional. HDP4424B from Hantek it's the same price as owon, it seems more polished ... --- End quote --- It seems that Instek made Ethernet standard at some point recently. You might want to double check with your supplier. That Hantek looks well thought out. They placed the select and enable buttons right over their respective output terminals, which is how it should be done. Also, those output terminals are clearly color-coded right on the front panel, which is again how it should be done. Neither the Instek nor the Siglent does this as well in my opinion. Some of us GPP-4323 owners have resorted to marking the output terminals with acrylic marker. EEVBlog user jjoonathan pioneered this technique. My attempt to copy him is shown below. The Instek is pretty compact, at 213x145x312 mm. The Hantek is wider, taller and deeper, at 232x153x392 mm, which could be a consideration if your bench space is limited. The main advantage of the Instek is of course that two of its channels can be changed from power supply to active load mode. It turns out to be surprisingly useful to set up a load channel to constant current and use that as a current sink for non-destructive testing of LEDs, Zener diodes, and the like. I have also used a load channel in parallel with an output channel to make a two-quadrant source for emulating a battery in charge/discharge modes. Good luck with your decision. |
| tautech:
--- Quote from: nctnico on October 23, 2022, 04:51:40 pm ---For me a numeric keypad is a must on a digitally controlled PSU. Otherwise you keep turning the encoder endlessly. --- End quote --- That's not the case if you can select the digit you need to adjust. |
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