Hi I Wanted to give everyone a bit of a heads up on a new series I'm stting New Design series. It's my power supply spin-off I've been mentoring numerous times. Uh, in the previous Bench uh, battery Powered Bench Power Supply video series and on the Forum and Uh Twitter and various other places. I've mentioned that um I'm going to be working on this bit of a spin-off uh project.

In fact, it actually predates the Um bench uh, battery powered uh Power Supply by a long time. So I'm going to start on that so this will be part one. There won't be any detailed technical info in here I Just wanted to uh, show you what I'm actually going to do now what it is is um I uh back in 2009 also I Had the thought that it'd be nice to have a little power supply you could take with you and work on those little projects or hacks or whatever you're doing. You know, out in the field, wherever you are with your laptop, right? right? you're working on a microcontroller project.

You need the power thing. You got your laptop with you, but you don't have a little bench power supply you can take with you and I thought, well, why don't you convert a USB port into a power supply And it seemed like a really good idea and you know a lot of people do that. A lot of people have done it. You know, they hook uh 3.3 volt Regulators directly onto the Uh USB connector and that's fine and dandy.

But I Wanted a proper variable power supply with knobs and a current voltage readout and things like that and I knew it wasn't going to be high power. You know it's limited to the 2.5 Watts on the USB port, but hey, 2 and 1 half wats can power. You know a decent amount of projects these days, especially a lot of the Um stuff I'm working on. it's it's more than enough.

So I thought I'll do a USB Lab Power Supply and that's what I started on and Tada USB Lab Power Power supply the micro Supply USB Lab Power Supply. It's got voltage and current readouts. It's got dual knobs on it USB input and the outputs and sorry, don't get all excited. this is not a finished product.

it's one of my prototypes and I'll show you some of the others. Uh, well, one of the others, um, you'll I uh designed this one back in 2009. It was a Uh designed to if it looks very similar to my microcurrent. It's no surprise cuz it was designed around the same time.

Hence I designed it into the same case and things like that. It's got the same red front panel and it's got the Uh binding posts on the top and things like that. so that was also a dual readout with the buttons. That was my first one.

This is another more modern one. This was done in 2010 so it's been sitting around for um, quite some time and I'll plug it in and actually uh, show you what's going on here. Here we go. Got my USB cable and uh, it plugs in and uh yeah, you can just adjust the voltage there.

it's it. It switches between the Uh set voltage and the actual red voltage. so if you turn it down in 50 Molt steps, there it is. It drops down and uh, then it reads the and same thing with the current as well.

You can chuse your constant Uh Set current and then it actually switches back and measures the Um Set current. Very simple and it's uh, isolated as well so you can put them in Uh series and create split supplies and things like that. Very handy, but like I said, not a finished design. I was never really happy with uh, you know either of these, the direction they going, the uh price of them, uh, some component selection, some logistic issues I thought it was too big to slip into a notebook carry case and you know stuff like that.

So I've decided that recently I will redesign it from scratch and I'll start a new series on how I'm going to design a USB Lab power supply. So I hope you enjoy it I hope you uh, follow along and uh, no, I'm not going to stop work on the Uh battery powered bench power supply that's still ongoing. Um, trust me. I've got a few uh, major steps to that.

I got relay out the board before I can do another video and stuff like that so that will be uh, going on at the same time so that will eventually happen. Don't worry. hasn't been abandoned. Um, but I'm going to do this one as well.

It's pretty, uh, simple. nothing complex. so this one might actually come out before as a as a kit. I plan on selling this thing.

Um, so it should. Uh, because it's uh, simple. It should come out, um, sooner than the battery powered bench power supply. Anyway, it should be fun.

A USB Lab Power Supply. Let me know in the comments on the Forum wherever if you think this is a neat idea, do you want one, and uh, what features you would like to see in it, but uh, I've already got an idea of how of what features it's going to have, how it's going to be packaged, everything else. So um, I'm basically going to follow that design. but I'm Keen to hear people's input on the concept and the idea of a USB uh power supply like this one Lab Power Supply and you know maximum voltage, maximum carrent, and interface and things like that so should be a fun and interesting project.

Hope you follow along. Catch you next time.