Past, Present and Future: Siglent SPD3303X Bench Power Supply

[@theirishscion]

Absolutely go for it! I'd love a cheap 4-quadrant source, and I'd love it even more if I could buy it in kit form, or just a bare board and a BOM.

[@TheAmmoniacal]

I want that OSMU already. Yes please.

[@jeffescortlx]

Watching a PSU power & ride a e-skate board tickled my fancy more than it should have.

[@Corgitronics]

Go for it! But, if you build the source device, what will I do with my 2450 & 2460 units?

[@reps]

Hm, least I could do is help you with the disposal :|

[@ManofCulture]

sell it to me?

[@allesklarklaus147]

gimme the stuff ok

[@hullinstruments]

Hoping and praying that you revisit the OSMU one day 🙏🙏🙏

[@richardcuomo205]

Great idea! Make it tough too. I have a variety of hobbies that use DC power (3D printing, automotive, aluminum anodizing, hobby electronics) and having one power supply that can cover all these bases would save me so much money. 30 vdc @ 10 amps covers 95% of the projects I do.

[@oswaldjh]

I bought the Siglent SPD3303X-E which is very similar this one. Siglent seems to be the best bang for the buck currently as I have also bought other equipment from Siglent after exhaustive comparisons with other manufacturers.

[@Lagggerengineering]

M8, if you get that project done, I will buy it full price right as it's available. Hot damn, that's an awesome project!

[@rubenafonso]

Very good idea! Please make that equipment, it will be very useful for both hobbyists and professionals

[@MartenElectric]

Have Siglent resolve problem with banana connectors.? I.e. standardised distance and loose holes?

[@akosbuzogany2752]

Can't wait to have some details and schematics explained!

[@tadeuszszczyrba976]

Idea of programmable ( ideally opensource ) high-quality 4Q PSU is great, but maybe it would be better to scope only on high-quality PSU and nothing more. Build 4Q function generator as extension for 4Q PSU ( requiring 4Q PSU for supply ) would have several advantages 1) not everybody wants to have 4Q function generator at all 2) some want to have more than one 4Q function generator connected with phase sync and some common potential ( 3p / stepper motor testing anyone ?) 3) it is more probable to success building simple and always looked-for product than something complicated. Advanced power supply unit is always interesting device for every electronician no matter how many and how good power supplies are already on his desk. I wish you ( and am awaiting ) THE SUCCESS! regards, T.

[@ligius3]

The sink could be used to characterize the PSU, so it should be a double win. As far as I see it, there are many capable power supplies but little (affordable) innovation on the load side.

[@MiniLuv-1984]

Aw, Tadeusz Szczyrba, let the Marco build what he wants, don't turn this into another design committee.

[@tadeuszszczyrba976]

About 5:17 Marsko says "What do you think - good idea?", therefore I responded for request

[@MiniLuv-1984]

Sorry Tadeusz, you are right - there I go shootin from the hip again.

[@Thomas-ob5fe]

Go for it, i would be amazed to see your development process as it's going on.n

[@danbir]

Great Idea - I am in! Especially the combination of a power supply together with a simple wave form generator is what I am looking for, for a long time! As a hobbyist, space is always an issue...

[@zedd81]

95% of the time i have no clue what you are talking about, but i still love your videos. Must be that awesome accent.

[@PhG1961]

Waw, that's a beautifull and versatile power supply. I'm still using my self build power supply from Elektor (1982)....

[@anonymity66]

That's a great idea! Consider another one sold when you have it finished

[@BR.]

Great idea! Insanely great idea! 3 channels (+/- 30V, 10A each?!) I instantly paused the video when I saw the quadrant. I watched the last 2 minutes 3 times! I would love to see lots of videos for this project. What if it also had an ADC for external input that we could use to correlate things?! We could measure motor torque, temperature, and lots of other things in relation to power.

[@Duracellmumus]

The current sinking function is usefull when testing batery powered/backuped things. But the reversable polarity is can be dangerous in most of test situation. If we call it an low frequency power-signal generator it can be high more undersandable. It can be usefull to test inductors in production.

OSMU, cool name. Looking forward to see your progress.

[@davidmiedema2950]

I will be on the list for the kit.

[@catt87]

Superb idea. Where can I send you the money to get one? Joking aside, it's a very useful bit of kit for anyone into electronics. so I will be very interested in tacking the progress on this one.

[@robert36902]

I'd love to see an approximate price to quickly see if it's in range for a hobbyist or strictly pro grade.

[@Richard.Andersson]

OSMU, yes please! I use 2400 and 2450 at work, they are truly multipurpose instruments.

[@prosen426]

If you make it and release it as a kit/BOM I'll buy it. So yes, definitely go for it!

[@MiniLuv-1984]

Probably a good opportunity to become a Patreon supporter is it not Jeremy?

[@hetzandreas3442]

Great to see its working that well on a skateboard ;-)

[@gerykis]

Rigol power supply is far above regarding programmability . You can fully control a Rigol PSU with a simple python program for sequencing and advanced logics .

[@sebraecha]

Great, that sounds like a cool piece of hardware I'll need on my desk, OSMU FOR THE WIN!

[@aronhighgrove4100]

Maybe I missed it, but I couldn't see any mention about improvements to the binding posts, compared to the teardown on Dave's EEVBlog. The "loosy-goosy" fit and the wrong horizontal distance of the + and - posts are definitely quite significant disadvantages.

[@felenov]

I own the same HP power supply. I like it because it just works. I also have a ATTEN TPR3020S Then I got my hands on a Agilent power supply (keysight now makes those)

[@DerSolinski]

Since there seems to be a real interest in the OSMU you might want to ask Seed studio for manufacturing. They are awesome when it comes to such small projects like this, they are the same guys who manufacture the Crazyflie for Bitcraze :-)

[@felenov]

When will the BBBB V3 come out? I made my own The Big Blue Bidirectional Brushless Brutality Beast It is 4800W 48V 3 phase industrial grade induction motor that is pretty slow but has plenty of torque. Had to use a massive driver for it. But it removes screws very good. Especially with a linear carbon based milling bit

[@Hasitier]

Good idea for sure. Make a kit and sell it if ever finished. I’ll buy one.

[@allesklarklaus147]

I have rigged together SMU style source before.. The Keithley 236 Schematic was my best friend :D Shouldn't be all that expensive when you dump all the low current stuff under 1uA and compromise on accuracy and resolution. Looking forward to your take on it, I went with several linear PSUs and the analog ground "floating" on the output positive just like Keithley did.

[@Mosfet510]

I enjoyed the review of the Siglent and I am really interested in seeing how that +/- 30v/10A project turns out. I am in need of one in that range that is accurate but not with a massive price. Im not cheap, Im frugal lol

[@Nik930714]

Where is the OSMU? Seriously. I'd love to see videos on that.

[@paulfletcher848]

OSMU sounds a great idea !

[@BionicSniper]

I am very much on board for a general use SMU! I have to start preparing for not having access to school labs anymore...

[@tablatronix]

I wish you made this video last month before I bought RIGOL DP832

[@ligius3]

Since my e-bike battery (and other power electronics) are moving to 10S LiPo, may I kindly suggest raising the SMU voltage limit to ~42V? Or at least leave a provision for 60V. I'm having a hard time finding affordable gear for that voltage and amperage (100-500W). For sourcing I could only come up with series power supplies. For loads, RC ESCs. If you're feeling courageous, also audio amplifiers might work for a second or so.

[@reps]

It looks like changes in the voltage and current ranges will be pretty easy, needing no more than a different set of transistors and voltage dividers, so even mixing 3 different channels in one device is possible!

[@cda32]

Really would love to see your PSU finished. I've been working on similar ideas for a multi function lab bench psu and variable load.

[@powil4ss]

sounds like a crazy idea.

[@milky3ay566]

Go For it man! That's really great idea.

[@KeesHessels]

i love your idea, have been toying with that as well. im working on a 4 channel psu, opa548 based with some dacs and an arduino due, the due has an awg sketch on the net, its not hard to adopt that but a real 4 quadrant psu hmmm.... :)

[@mohammadr797]

What have you done with another ambitious project - DNA sequencer?

[@FlyingShotsman]

Yes, outstanding idea!

[@justrandom7214]

brilliant! I was looking into the 238 but it still only has 1A max source / sink ...

[@TonySesek]

Hell yes on the OSMU!

[@gacherumburu9958]

Wonderful idea!

[@MohamedAminer1]

2:08 didn't see that meme comming.

[@merseyless]

Most day to day use would be as a bench power supply. I'd say that it's worth the complexity cost for the lower temperature regular operation.

[@MCsCreations]

Interesting! Sounds great!

[@thenimbo2]

get the OSMU on crowdsupply! the EEZ psu sold well!

[@dimitar4y]

Love the cute angry face. Editing like that is so cute :D

[@stefanosmakris5641]

OSMU , yes! Great idea!

[@ovidiulu]

Excelent idea! But if not pico will it have femto?

[@martinwestermeyergondonnea84]

go for it!!!!! maybe a kickstarter?

[@johnwhitmore2531]

Brilliant Idea!

[@andrewwilson8317]

Great idea with lots of possible applications,just a shame they will be copied and available on banggood for next to nothing!

[@swenic]

Isn't that kind of the point with open source?

[@andrewwilson8317]

swenic open access refers to the application and the programming rather than almost free components. Open access gives the end user access to information to integrate and apply the device rather than the design and construction of the device.

[@MisterCOM]

Andrew Wilson ??????

[@andrewwilson8317]

MISTER my comment was aimed at the inevitable happening that the circuit design will be reverse engineered and copied,often very cheaply. It was commented that is this not open source? My opinion is no,this is not open source ,rather I consider open source to refer to the access to the coding and programming and the ability of the end user to customise this to suit their needs,at no purchase cost?ie they are given open and free access to the source coding.

[@MisterCOM]

this clears up your opinion for me but i have to disagree with you but i think that everything will turnout alright depending on what license he uses

[@PETRO219]

I agree, go for it!

[@rpavlik1]

I think I'd enjoy a kit if you'd make one available for your osmu! I like my (garage sale find!) BK Precision 1670 power supply just fine, but multi-channel (beyond the fixed 5V and 12V lines combined with the one variable channel) at least sounds nice... There sure are a lot of chips/things (display panels, etc) that insist on careful power sequencing...

[@schottkyd.6298]

An affordable open smu is such a great idea. is the project going on ? Can we contribute? Or does anyone know something similar? I still haven't found anything else than this video about an diy smu.

[@stefanosmakris5641]

Great idea indeed!

[@avejst]

Thanks for sharing 😀👍 Interesting ideas, I think you should aim for

[@devluz]

Are there any of these bench power supplies in a price range for hobbyists? This thing sadly costs almost 400 euro ... my budged is more like 40 euro :|

[@maybles1]

Hell yeah I'd buy one

[@leozendo3500]

OOOOOPPPPPPEEEEENNNNNN Source means everything.

[@Dierundeuhr]

OSMU looks pretty good. Do it!

[@jameshauser1507]

Good idea I think it's a great idea

[@A13tech]

OSMU project ? where can i sign for it ?

[@andreivladescu7178]

Damned good idea.

[@mr.amp0076]

Superb idea..... 😍😍😉😉😉👌👌👌

[@sorin.n]

Good idea! Much wow!

[@Semphora]

did they fix the bana plug issue as well?

[@reps]

Yes! www.eevblog.com/forum/testgear/siglent-spd3303x-e-binding-post-issues-solved/

[@raphaeljamar2451]

Hell yeah! Just do it!

[@iCubber]

Do and become really rich. You deserve it.

[@Anvilshock]

> open source > get really rich pick one or prove me wrong.

[@iCubber]

Kind of an inpossible task you think. You are probably right, but spending your knowledge and time and increasing the possibilities of thousands of electronical technicians by that, seems like an noble task for me.

[@bardenegri21]

Very good idea

[@xcruell]

Hammer Idee!

[@First2ner]

switching pre-reg, before linear reg., driven by (16bit dac) precision voltage reference. The is a project like that on youtube, I can find the link of it

[@lambertax]

Yes please, do it ...

[@ed-jf3xh]

Good idea.

[@Crazy--Clown]

*You certainly know your shit 👍👍*

[@zsanime]

Like the idea.

[@joaquins90]

I do want one of those 4Q stuff! Do you need spme colaboration? I'd be willing to help and I think I can make myself useful...

[@OneBiOzZ]

I would love a 4 quadrant supply in the lab without busting out the big bucks for a SMU when i work only in lower voltages!

[@nicolocatanese3477]

Still waiting for the OSMU

[@funbraker46]

Good Idea! :D

[@TilmanBaumann]

Good idea I think

[@leonerduk]

3:53 no electric screwdriver, Marco?

[@bequemlichkeitsgruen]

Oh, yes please! :)

[@KX36]

If you need a custom transformer supplier for your project, I've used toroidy.pl before and I can recommend them. They custom wound me a 225VA line transformer for around 60-70 euros as a one off about 5 years ago (can't remember if that's before or after tax) and as they're in the EU, it's a lot faster than ones in China an you don't pay any import tax. They do audiophile transformers but you can get a basic model that skips all the features you don't need like encapsulation. That's if you were thinking of keeping it linear. However for the power you describe you'll probably have to go to a switching converter, the complexity of which will probably be too much for you. I started something similar at 3 channels of 40V 4A, 10mV/1mA precision with active PFC, linear output regulators and tracking switching pre-regulators, but even with my experience of switching power supplies, I never finished it.

[@km5405]

what a beautifull story :).... they grow up and get big so fast huh

[@lokis9210]

I want yours 😍

[@CliveChamberlain946]

Winner winner CD! Linked in test equipment forum - www.eevblog.com/forum/testgear/siglent-3303x-review-by-marco-reps-(and-osmu-project-anouncment)/

[@yanfishtwig2356]

Yes please to the OSMU

[@xDevscom_EE]

Time to get HP 3245A now :P.

[@reps]

It has been on my 'list' for years now, but in Germany such things are rare or absurdly expensive :L

[@DivinityIsPurity]

What do I think?????.. eins zwei polizei drei vier grenadier!

[@grozaadrian4134]

i want moaaaaar !

[@bluedeath996]

I'd get one if the price is right.

[@GLITCH_-.-]

DO IT! JUST DO IT! And then try to make it not thaaaat expensive, ok?

[@reps]

The first version will be a little bit more pricey than it has to be, because my goal is to just get it done. But in future optimized versions I (or someone) will certainly find ways to implement the functions with cheaper components (LT1970 for example can be replaced by 4 op amps and 4 diodes more or less)