EEVblog #1265 - $53 360W Lab Bench PSU!

UPDATE: I screwed up the noise measurement. It's actually way better at about 60mVp-p no load and about 100mVp-p at 6A using a proper scope probe in X10. I was using a BNC cable with banana plugs and forgot the 50ohm series matcher. Oops. Will have to do another video showing this. Good excuse for a video on this topic anyway.

Apreciaate very much opening yourself to these cheap equipment, cause there are many of us who can't afford expensive equipment that is going to be use in home-entusiast aplications, and having your respectable opinion on these afordable stuff is very very useful. (Sorry my english, from Mexico by the way)

I've been waiting for your review of these, I was holding off buying until now. Thanks!

You are awesome Dave, Thank you for all your videos, I love watching and learning from them.

Wow, Literally was looking at one of these on ban good last night! So glad you made a video!!

Oh I do so hate it when our marketing manager comes over and twiddles with my knob... so annoying.

Great day in the morning! Your knowledge is IMPECCABLE! Cheers my friend! Thanks for the knowledge.

Wow. Forget the PS, i'll buy the case for my own project. That's a nice case and way cheaper than a similar project case from Digi-key. And it comes with accessories.

Just built one last night :-) Works well so far!

The battery charging terminal includes protection to prevent back-powering the supply if the mains is disconnected, and reverse polarity protection to prevent blowing the crap out of the unit (or at least the fuse) if you connect the battery terminals backwards, which has been a complaint with RD supplies in the past (-_-). You wouldn't normally use it outside of charging applications as it would reduce the efficiency and maximum power handling. Noise issue seemed clearly wrong. If that is switching noise, whats the higher frequency lower magnitude crap between pulses? There shouldn't be that much external noise coupling onto the signal. Also using an adjustable load for such measurements is usually a Bad Idea (tm) Their DPH modules are buck+boost, so you can eg use a 12V or 19V supply and get the full 0-30V output range. I don't think they have an equivalent in their new RD series just yet. The serial connection on the DPS/DPH units used a MODBUS implementation, hence the slave address selection. They do document this protocol quite well. It was fairly easy to build custom software to interact with, and it's supported by third party stuff such as sigrok etc. Looks like these new RD units use the same interface.

I have an old 19V laptop power supply (60W I think), all I need is a panelmount DC barrel jack into the smaller case and I should have a handy little bench supply. Looking forward to this. Thanks for doing the thorough review!

Well had it over 12 months now and still pleased with it. I have used it hard charging some big batteries. So have pushed to limits and still going. I did get the full Monty with all the suggested units direct Tom manufacturers. Good review nearly need to watch the follow up 😂

28:52 I feel like this interface was designed by a technician from Hyundai. I rented one of their cars last year and was BLOWN AWAY by the thought that went into everything. Their menus and options were highly intuitive and allowed a lot of customization. Not only that, but the steering wheel controls, the media unit, the side panel controls, adaptive cruise control, it was amazing. I just really wish other companies put that kind of effort into their design and think about how the consumer will actually use the product - like the buttons and knob not doing anything unless you select a function to avoid marketing manager idiots.

Looks great! Might have to get one of these!

Mine just came in, very nice ......thanks! Struggled to source 60V backend PSU, so bit the bullet and ordered a 60V form their recommended supplier.

The back to the future jokes always get me. Nice video man

For the price, not a bad deal.

My uncle Bob thought it was bloody brilliant, so i wrote my mom about it. Gotta tell you, nothing to sneeze at, remarkable value. 😁

love your videos, you make learning things about electronics entertaining

Well, my RD6006 finally arrived a few days ago, with the chassis and 60V DC supply arriving sometime mid December, though I ordered all three at the same time. So far, I'm really liking this thing. I got the 60V supply, so with the forward voltage from the regulator itself, it's maximum output is 58.48V DC at 6.1A. The DR6006 unit will take up to 70v in. The graph display is actually pretty useful, because if you use the jog wheel, you can change the vertical scale (notice the division readout at the bottom) and see the amperage and wattage, so you can plot your device's current draw over certain times of it's usage and determine what kind of power supply and fuse your prototype device will need (you could calculate that before hand, but you could end up with something way overblown for what you actually need). I was just using it as a makeshift supply to test a force feedback joystick, and was able to graph the current change when I moved the stick. Presumably this kind of logging is what the software should be used for, but with the antivirus complaining like that, I'd use an isolated system if you need to interface with it. At least until somebody can reverse-engineer the code and determine that there's nothing untowards going on. It should be noted that there is other software from more reputable sources that recommends that you disable the antivirus while you install it, so this isn't exactly anything new. It may be nothing of concern, but exercise caution until you know for sure. I also discovered that the voltage monitor works even when the supply is off. Probably for the battery charge function. I wouldn't use it for a multi-meter, but that's a curiosity. The chassis and power supply fans only go on initially at startup, and thereafter only when they're needed, so it's completely silent when on standby. That would probably change if I find something to do with it that requires higher current, but with what I'm doing, it runs pretty quiet. So far, it seems like a good buy if you get the components on sale. About $170 CDN for the whole lot on sale (on Banggood.com), including shipping, which is far cheaper than a comparable name brand supply, even off of eBay. We'll have to see how well it holds up over time, but based on what I've experienced so far, and Dave's own review, I'd definitely recommend this for electronics hobbyists looking to get their lab going at an affordable price.