New power supply from FNIRSI the IPS3608 - Page 1
Forum section: electronics / testgear

author: TheDefpom
author_rank: Frequent Contributor
timestamp: September 09, 2025, 08:36:55 am
content: I review the new FNIRSI IPS3608 power supply, I thought I would start a thread here about it as I expect it will be needing one.

author: thm_w
author_rank: Super Contributor
timestamp: September 09, 2025, 09:34:30 pm
content: Quite a step up from the usual fnirsi junk. $114-150 USDCompetes with Aixun P3208:https://www.aixuntech.com/product/p3208-320w-smart-regulated-power-supply-32v8a-one-key-boot-power-box-/$170 USD

author: hamster_nz
author_rank: Super Contributor
timestamp: September 11, 2025, 11:04:05 pm
content: Does anybody have any info on control over USB?It says that software is suppled, as well as a USB data-only cable.Is it SCPI compatible?

author: thm_w
author_rank: Super Contributor
timestamp: September 11, 2025, 11:52:31 pm
content: Quote from: hamster_nz on September 11, 2025, 11:04:05 pmYou can download software here and experiment:https://www.fnirsi.com/pages/software-downloadsNo mention of SCPI or a command guide, but apparently supported on some of their scopes.

author: Cyclotron
author_rank: Unknown
timestamp: September 12, 2025, 02:29:52 am
content: It always strikes me as wrong when I see a DC power supply labeled as AC-DC. I do like the thoughtfulness of the tip-up/down screen.

author: Whales
author_rank: Super Contributor
timestamp: September 12, 2025, 03:40:10 am
content: Quote from: Cyclotron on September 12, 2025, 02:29:52 amDo you read it as "output AC or DC"? I read it as "from AC to DC". There are also DC-DC power supplies.

author: Cyclotron
author_rank: Unknown
timestamp: September 12, 2025, 04:51:38 am
content: Quote from: Whales on September 12, 2025, 03:40:10 amI do/did read it that way. Now that you say it, "AC to DC," I see it as you say, given the hyphen. I'm just used to saying DC power supply, I guess.I really want an AC power supply, but everything that I've found so far is way past my budget.That reminds me that I need to fix my dim bulb as I have a radio to test this weekend.

author: hamster_nz
author_rank: Super Contributor
timestamp: September 18, 2025, 01:24:59 am
content: My IPS3608 arrived today. Initial testings seems good - it's charging my cell phone and powering a development board over USB A & C. Quite impressed with build quality.I tried the software download, but the "Windows/Linux" download link is only a Windows 'exe' file.The data port is detected by my Ubuntu system (showing up as /dev/ttyACM0) but doesn't seem to be running a useful interface (e.g. SCPI). So that's a little sad.If anybody has any questions I could try to answer it for them...

author: Whales
author_rank: Super Contributor
timestamp: September 18, 2025, 03:52:15 am
content: The windows program might work on wine/linux. You can find out the com port mappings with:Code:ls -l ~/.wine/dosdevices/

author: ptluis
author_rank: Frequent Contributor
timestamp: September 18, 2025, 11:13:52 am
content: Quote from: Whales on September 12, 2025, 03:40:10 amIn some countries people read from right to left, so it will be DC-AC

author: csuhi17
author_rank: Frequent Contributor
timestamp: September 18, 2025, 12:41:15 pm
content: So, should an AC to DC converter be called a DC-AC?I thought the conversion direction was from left to right, from input to output.Like an AD or DA converterDoes this power supply have a function that automatically turns off the output when the output current reaches a value I set?I just asked because it's not always mentioned in the manual.Are there any cheap power supplies that have this function?

author: hamster_nz
author_rank: Super Contributor
timestamp: September 18, 2025, 09:44:27 pm
content: Quote from: csuhi17 on September 18, 2025, 12:41:15 pmWith the out of the box config, if powered on, and a hard short occurs it shuts the output off, and the big green "power on" light goes red. I assume over-current protection is triggered.When configured 0.2A@3.3V, and connected to a load that wants 0.7A@3.3V (a OCXO module) it goes into current limiting mode when outputs are turned on - so sits at 1.3V @ 0.2A.There is also over current protection setting, which has a default of 8.0A, that may be the configuration that you want - e.g. shut down when X amps is hit).