need to try the usb and use it to revive old batts ....

Will put it here, as it can be helpful info for this device. You got secondary features. * Double mid button will activate menu. * Holding mid button will lock it. * Holding right button will enter "presets" where you can save values with 10 presets (0-9) and OCP & OVP for each.. You cycle with thumb-wheel and select with buttons. * Holding left button will power on or power down... you can adjust in menu how it shall react when you attach power.. "on or off". * Doube left button will enter USB slaxxmode (lol your not allowed to write that word..spooky censored PC world) USB slaxx-mode so you can control it remotely with a wireless mouse or keyboard etc (you just plug in your wireless dongle into the USB-A socket) and you can control it remotely, its fiddly when doing minute differences, as its the mousewheel that cycles values * You can get out of the V/A adjustment highlight-mode, by holding either of the three buttons for a short while, so you don't have to rely on time for the V/A-highlight to dissapear.. You can dial in your choosed input-voltage and what PD value you wanna use in the DP100 menu.. 5v. 9v. 12v. 15v. 20v..it will also do Qualcomm protocols so 5V, 9v, 12V... and you can also just run it from old school USB-A 5V, but its a bucked device (no boost) so you will only obtain voltage control below your voltage input level. I run mine from PD3.1 140W powerbank (Anker737), so 28v 5A but I need to trigger the 28V PD3.1 protocol on the cable, as not many end products got PD3.1 support.. same with DP100 it support max PD3.0 protocol.. so natively its max 20V 5A, that again matches with its rating 100W. . but you can always just feet it what every DC voltage you like. it doesn't have to be one of the modern charge protocols, and why they incl. the TypeC to DC barrel adapter, so you can use any old laptop PSU with DC barrel 5.5x2.5/2.1 or you can use a RC LIPO pack.. in the voltage you prefer, and just run it from that.. it accept 5v to 32v input. its very tolerant for the DC voltage sources it will work with. I love how Dave almost take offense, as its fronting on his little precious MicroSupply-turf that were a sexy little thing (no doubt) that sadly never saw daylight and likely wont, when you can get 100W adj. PSU at these prices. Dave.. please be careful with your price-thumbnails as they ain't representative... your showing "Welcome Deal prices".. that really ain't representative.. as Aliexpress will eat a good chunk of the cost when there is a "welcome deal banner".. please log into Aliexpress to see the real prices. Its a relative new Chinese upstarter that are making these "Atomic".. if I recall AlienTek is just a western intended brandname... but its Punctual Atom.. that are making it.. they also make a few other tools. Soldering Iron, small Logic Analyzer, small handheld scope, heatgun with brushless motor, and some other stuff.. I got a thread on EEVblog. There is also PC software with english language, but I couldn't get it to work when I dug down into it ½ year back on the 2 units I purchased (fw v1.4_1.4).. - when trying to run the software it popped up with a small window that were a pain to close again. :-/ An example of the PC software kzfaq.info/get/bejne/oc1xjZeqm9yYf5c.htmlsi=sJ8x-7lMMHN2vKoO&t=47

I was just about to purchase one then saw your tweet about editing. The only thing is it is not pc control? Ok better buy it tonight as the price is rising!

Hi dave can we put 2 identical 20000 mA in parallel as input to DP100 and have a mobile bench PSU ?

Usually I consider China product (own brand) not good, but sometimes there is exception like this, love to see them making good quality product!

one day

I want to believe!

sounds like explanation why u cant afford it 😁

Thank you very much from Paris, with the help of subtitle your video is a true retro-engineering , i have the tiny scope, the tiny logic analyser, but now i need this tiny power supply i will have 3 measuring tools never used, only tested after the unboxing..

Agree. Really sad that he just dropped it

is it possible to ship the DP 100 to Germany? On Ali Express it says it won't ship

What is best UK purchase URL?

haha

Our store can be opened through Mr. Dave’s link@@evanvenn

Sorry, friends, we are trying to find a way to open sales and delivery in Germany.@@janh.4943

That's not true, he has done some positive reviews of things like that in the past, including a $12 multimeter, and of course scopes. The truth is, we are spoilt nowadays, we can do some serious electronics at very affordable costs. For $300, we can have a DMM, a 2 channel 20MHz scope, a soldering statiion, a power supply, and a Raspberry Pi 4, all of those with pretty decent performance. This allows quite a lot of things.

Flaws are flaws.. you can't just ignore them

I'm not really sure, but I'm starting to think this is because the Chinese has started to rise their overall quality. But i may be wrong, so pls nevermind.

Not the first for sure. He did several positive "cheap tech" revievs earlier too. Particularly about another power supply - Riden RD6006. I bought that power supply after Dave's review and so far I have not regretted it.

@@gregandark8571 It is because of china started to manufacture their own chips. That is the reason why products from china can be this cheap.

Fascinating! Do you have a GitHub or something?

Sounds like you should put this into a Github repository to let others contribute...

@@dougle03 Indeed. Can't link outside KZfaq in comments though 🔎 "webdp100"

I was so impressed by that I bought one lol. Had to use Dave's link to get it$20 AU cheaper than just searching for it

Damn, really?

It has light-up ports, it makes sense

@@EEVblog Yes lol. Listen to the Conclusion section.

$40 Gaming laptop! Ill buy ten!!!!

Built by slaves on alien rates. Every-time I order from Ali I pray to their god....

Yes, the screen could have been on the top of the unit and hence much bigger.

@@lolilollolilol7773 They're meeting a price point. The fact it has USB control should eliminate all the screen size issues. If the firmware is updatable/UI customizable, the screen has a lot of potential for a better setup (left right buttons to swap screens, hold center to modify, tap center to select items/confirm changes, left to go back while modifying, scroll to change items/change values). Such a tiny screen greatly benefits from not trying to cram viewing everything on the same screen and could be more than adequate for such a small power supply adapter.

What? Dave guesses wrong again?

While you waste time on Twitter, I buy the model X....

Long way to go to 1M at the current rate

Not looking too bad when checking out socialblade stats. I give it 18 months max

Dave's been at 930k or so for like 3 years 😂

I've been using one of the cheap Chinese ZK-4KX buck-boost adjustable power supplies for years now. Works fine for my purposes, and I used the box it came in along with some salvaged speaker terminals from an old amplifier to make an enclosure. One set of terminals is adjustable, and the other is switched directly to the input, so I have fixed 12v available at all times too.

​​@@Kevin75668 I've had a ZK4-KX mounted in my ATX power supply for a few years. I also still have all the usual fixed voltages, but use the ZK when needed, and it works great, been very handy. Recently, I found I need 36V for something, with a quick search I found you can now buy a ZK-5KX - 0.6V-36V - 0-5A, with a heatsink mounted cooling fan. It has the same size panel dimensions as the 4KX, just a little deeper with the fan. It should be an easy direct swap into my existing ATX supply for a nice V + C upgrade without having to modify the panel cut out or any internal wiring etc.👍🇦🇺

NO,"正点原子"These words are our brand name in China, and the foreign brand name is "ALIENTEK"

That is only true for low output voltages like CPU VRM does. When output voltage can be 0-99% of input one - 2 high side switches seem better than 2 low side ones to me. Majority of switching loss happens in high side switch so keeping lowering and spreading conduction losses there seems reasonable.

​@@volodumurkalunyak4651 Using 2 high side FETs will halve the high side conduction loss but it may come at considerable cost in switching loss given the drive current to/from the high side gate driver (the MP9228) now has to be shared between two FETs; halving the drive current to charge the gate capacitance could double the switching time and switching loss. In reality it probably wouldn't be as bad as that in this case - the MP9228 should be able to switch 2 x RUH4040M2 FETs reasonably quickly (< 25ns) but still slower than a single FET. The conduction loss reduction could be more than undone by the extra switching losses, the extra power for the gate charge and the extra output capacitance loss of the 2nd FET. [EDIT] On the other hand, the minimum switching time may well be limited by EMI requirements more than the gate driver's ability. The lower, sync, FET(s) do not suffer significant switching loss so using more (or larger) FETs reduces the low side conduction losses (at output voltages < 0.5 x input voltage) for the extra gate charge and output capacitance losses. The benefit from having 2 sync FETs doesn't appear to be great however.

Still not bad at that price.

I bought this some months ago for ~$45 and was impressed with it. I figured as soon as some big enough tech reviewer reviews this, the price will immediately go up. Always does. And that day has come...

That’s exactly my thinking. Though power on/off does have an international symbol they could have used for that at least.

I reckon its a case used for multiple products, maybe an audio amp

They could have used symbols like I/O though, so your assumption does not make sense.

also likely that they reuse the same case among multiple devices

No. FNB58 is just a USB Tester. You can trigger different fast charging protocols and monitor the load parameters. But it is not a power supply like this one.

@@OGRTD It definitely is.. It even comes with a USB to alligator wires.. While plugged into a USB-c. you can set the output as 5v, 9v, 12v and 20v and use it as a power supply. Most of the major video reviews show this too. I don't think it's as powerful as this one though.

It goes away completely.