EEVblog Electronics Community Forum

EEVblog => EEVblog Specific => Topic started by: king.oslo on April 30, 2012, 02:17:02 am

Title: Updates @ PSU series?
Post by: king.oslo on April 30, 2012, 02:17:02 am
I haven't gotten much sleep lately because the PSU series is psychotherapy. Anyone picked up information about when the wait for next episode is over?

Kind regards,
Marius
Title: Re: Updates @ PSU series?
Post by: EEVblog on April 30, 2012, 08:11:45 am
If anyone hears anything, please let me know!

Dave.
Title: Re: Updates @ PSU series?
Post by: king.oslo on April 30, 2012, 08:22:51 am
Good morning Dave. Will do ;) i got your uCurrent. I am thinking about doing a teardown video ;)

Wish you a pleasant day :) M
Title: Re: Updates @ PSU series?
Post by: EEVblog on April 30, 2012, 11:46:42 am
Actually, my aim to at least do something on the PSU design today...
And by that I mean work, not necessarily a video!

Dave.
Title: Re: Updates @ PSU series?
Post by: king.oslo on April 30, 2012, 03:26:45 pm
That is great news. Thanks Dave :) We will be following u @ twitter :)

Kind regards,
Marius
Title: Re: Updates @ PSU series?
Post by: McMonster on April 30, 2012, 04:15:26 pm
I figured out all of this. It's Dave plot to stall the whole PSU project so much that everyone become impatient enough and build their own so that they won't bother him with more "when are you going to do another batch?" questions like they were doing this with uCurrent.
Title: Re: Updates @ PSU series?
Post by: dcel on May 01, 2012, 02:36:29 pm
I figured out all of this. It's Dave plot to stall the whole PSU project so much that everyone become impatient enough and build their own so that they won't bother him with more "when are you going to do another batch?" questions like they were doing this with uCurrent.

ROTFLMAO!

I bet if Dave was to make another 200 unit batch, by the time they are ready, they will again fly off the bench in a two week period.
As for the power supply, I am very intrested to see the "other" design idea Dave has that could be done sooner than later.

(Im)Patiently waiting for the next uSupply installment...
Whatever it contains...

Thanks Dave
Chris
Title: Re: Updates @ PSU series?
Post by: EEVblog on May 01, 2012, 05:21:36 pm
I bet if Dave was to make another 200 unit batch, by the time they are ready, they will again fly off the bench in a two week period.

I'm doubting that.
Next batch is 100, parts in, boards due end week.

Quote
As for the power supply, I am very intrested to see the "other" design idea Dave has that could be done sooner than later.

(Im)Patiently waiting for the next uSupply installment...

I shot some footage of prototyping the DC-DC circuit today, but not much.
Yes, that other one could be done a lot quicker I suspect...

Dave.
Title: Re: Updates @ PSU series?
Post by: dcel on May 05, 2012, 06:50:59 pm

As for the power supply, I am very intrested to see the "other" design idea Dave has that could be done sooner than later.

(Im)Patiently waiting for the next uSupply installment...

I shot some footage of prototyping the DC-DC circuit today, but not much.
Yes, that other one could be done a lot quicker I suspect...

Dave.

Quit teasing us then, out with it already! >:(

At least you can give us a "teaser" about the idea? Please?  ;)

Thanks Dave

Chris
Title: Re: Updates @ PSU series?
Post by: EEVblog on May 10, 2012, 11:15:44 pm
Quit teasing us then, out with it already! >:(

At least you can give us a "teaser" about the idea? Please?  ;)

Possibly.
The idea is simple enough, just like the current PSU design, but the devil is in the implementation/build detail.
I don't really want to start another video series on it and find that the physical implementation sucks... So I was thinking I'd do a proto board and see if it all fits and works as intended first, and then go back and do the detailed videos.
But if you want to know, it's smaller, simpler, cheaper, and even more niche than the current design.

Dave.
Title: Re: Updates @ PSU series?
Post by: george graves on May 11, 2012, 12:06:10 am
I was really enjoying the stream of PSU videos.  Each time I get a youtube notification I cross my fingers it's a update!
Title: Re: Updates @ PSU series?
Post by: robrenz on May 11, 2012, 12:56:05 am
Dave,  I can relate to you very well with similar twists and turns in my project I mentioned to you.
Title: Re: Updates @ PSU series?
Post by: EEVblog on May 11, 2012, 08:45:23 pm
Dave,  I can relate to you very well with similar twists and turns in my project I mentioned to you.

Yeah, I took a risk with the PSU project, putting it out there before I had really thought it through and built a solid proto I has happy with. So not surprising when it ends up with those twists and turns!
Not sure I want to do the same thing with the other PSU design...

Dave.
Title: Re: Updates @ PSU series?
Post by: Psi on May 11, 2012, 09:08:08 pm
Yeah, I took a risk with the PSU project, putting it out there before I had really thought it through and built a solid proto I has happy with. So not surprising when it ends up with those twists and turns!
Not sure I want to do the same thing with the other PSU design...

The twists and turns are what make it fun to watch.
Title: Re: Updates @ PSU series?
Post by: robrenz on May 11, 2012, 09:40:33 pm
Agreed,  The twists and turns have the highest educational value.  Seeing the thought processes that initiate the twists and turns are a huge value to "young players" like me.  Don't change a thing Dave.


Title: Re: Updates @ PSU series?
Post by: Rerouter on May 11, 2012, 09:57:23 pm
expecially considering all of the build up then redesign shows us different ways to accomplish the same task, be it chasing accuracy, cost or size, or efficiency or practicallity

so far have shown us a good deal of the variety and i think thats why your non scripted shows are so popular, so i say throw stuff at the wall at your leasure knowing that to us guys in the forum (well a good lot of us) are happy to stick with it
Title: Re: Updates @ PSU series?
Post by: dcel on May 11, 2012, 11:40:07 pm
expecially considering all of the build up then redesign shows us different ways to accomplish the same task, be it chasing accuracy, cost or size, or efficiency or practicallity

so far have shown us a good deal of the variety and i think thats why your non scripted shows are so popular, so i say throw stuff at the wall at your leasure knowing that to us guys in the forum (well a good lot of us) are happy to stick with it

Just keep doing what you do Dave, that is what has made you so cool to watch.
Back to the tutorials please?

Thanks Dave

Chris
Title: Re: Updates @ PSU series?
Post by: EEVblog on May 13, 2012, 10:30:34 am
The twists and turns are what make it fun to watch.

Yep, but not so much for for the person making it!
It can be rather embarrassing because some things can be stupidly obvious with hindsight and a few more moments thought.

Dave.
Title: Re: Updates @ PSU series?
Post by: Uncle Vernon on May 13, 2012, 11:30:35 am
It can be rather embarrassing because some things can be stupidly obvious with hindsight and a few more moments thought.

Dave.
No need for any embarrassment!Sometimes the things you don't see are glaringly obvious to another set of eyes!

While I agree design generally works best driven from one mind. Peer review is an incredibly valueable tool when refining a product, with good ideas for refinement and inherent flaws being readily identified by others with varying skill sets.
Having the balls to put an incomplete design up for review, and revising the design based on sensible feedback can only be commended.
Title: Re: Updates @ PSU series?
Post by: bradleytron on May 14, 2012, 04:05:54 pm
Forgive me if this question has already been asked. Has or is Dave planning to post the code for the uCs at some time?

Thanks
Title: Re: Updates @ PSU series?
Post by: EEVblog on May 14, 2012, 04:29:46 pm
Forgive me if this question has already been asked. Has or is Dave planning to post the code for the uCs at some time?

Yes, when I'm done, or close to done with it.

Dave.
Title: Re: Updates @ PSU series?
Post by: McMonster on May 14, 2012, 04:32:33 pm
Forgive me if this question has already been asked. Has or is Dave planning to post the code for the uCs at some time?

Yes, when I'm done, or close to done with it.

Dave.

Post number 4000. :P
Title: Re: Updates @ PSU series?
Post by: EEVblog on May 14, 2012, 05:17:58 pm
Post number 4000. :P

Don't exaggerate!
Good chance it'll make #400  :P

Dave.
Title: Re: Updates @ PSU series?
Post by: Christopher on May 15, 2012, 04:52:06 am
Quote fail?
Title: Re: Updates @ PSU series?
Post by: Rutger on May 16, 2012, 12:20:19 am
I will bet money that Dave will start using the Tiny Gecko in the design to save battery life for the PSU.

Dave, is it possible you could test/review the quality of the DAC/ADC in the Tiny Gecko board you received?

Thx, Rutger
Title: Re: Updates @ PSU series?
Post by: king.oslo on May 16, 2012, 03:04:35 am
Dave, is it possible you could test/review the quality of the DAC/ADC in the Tiny Gecko board you received?

Yes!M
Title: Re: Updates @ PSU series?
Post by: McMonster on May 17, 2012, 07:37:12 am
Post number 4000. :P

Don't exaggerate!
Good chance it'll make #400  :P

Dave.

A quote fail. :P I was refering to number of posts on the forum, not the blog videos.
Title: Re: Updates @ PSU series?
Post by: EEVblog on May 17, 2012, 09:30:41 am
A quote fail. :P I was refering to number of posts on the forum, not the blog videos.

Doh!

Dave.
Title: Re: Updates @ PSU series?
Post by: bjoernx on May 24, 2012, 10:37:46 am
The twists and turns are what make it fun to watch.

Yep, but not so much for for the person making it!
It can be rather embarrassing because some things can be stupidly obvious with hindsight and a few more moments thought.

Dave.

But actually, that's not your fault, but the fault of a culture, that does not reckognize the value of failure in any learning process.
Remember, what Jerri Ellsworth says there - and she's so damn right and to the point, IMO. :)

Secret to Learning Electronics - Fail and Fail Often (https://www.youtube.com/watch?v=xhQ7d3BK3KQ#ws)
Title: Re: Updates @ PSU series?
Post by: bdivi on May 29, 2012, 10:31:22 pm
So what is the status of the PSU project ?

I have not seen an update for a while. I hope it will come to a successful end :-)
Title: Re: Updates @ PSU series?
Post by: EEVblog on May 29, 2012, 11:02:02 pm
So what is the status of the PSU project ?

Pretty much the same place it was last time :->
It's almost certain you'll see a spin-off supply project before the conclusion of the current one. That's guaranteed to piss off a few people! :P

Quote
I have not seen an update for a while. I hope it will come to a successful end :-)

I hope so too. It is certainly not abandoned, but new videos for it require several large leaps in terms of project completeness (e.g. the new re-spun board) so won't happen overnight.
That's why the other project will likely get a look-in first, there is fresh material there to be mined...

Dave.
Title: Re: Updates @ PSU series?
Post by: PeteInTexas on May 30, 2012, 12:48:15 am
I hope so too. It is certainly not abandoned, but new videos for it require several large leaps in terms of project completeness (e.g. the new re-spun board) so won't happen overnight.
Dave.

Is it the programming?  Last I kept up with the PSU series it had a couple of different buses to talk to a handful of different subsystems, if I remember right.
Title: Re: Updates @ PSU series?
Post by: EEVblog on May 30, 2012, 09:31:24 am
Is it the programming?  Last I kept up with the PSU series it had a couple of different buses to talk to a handful of different subsystems, if I remember right.

No, I have to re-do the PCB to SMD. Major changes.
Plus I need to think about stuff as usual... is this the best way etc...

Dave.
Title: Re: Updates @ PSU series?
Post by: dcel on May 30, 2012, 11:00:29 am
It's almost certain you'll see a spin-off supply project before the conclusion of the current one.

That's why the other project will likely get a look-in first, there is fresh material there to be mined...

Dave.


Great! A simple update video explaining the current status of the PSU series would be cool. Let us know what the process and thinking is for the spin-off, as well as what the future of the original PSU is.

Chris
Title: Re: Updates @ PSU series?
Post by: EEVblog on May 30, 2012, 03:45:46 pm
Ah, what the heck, a sneak peek. But actually, it's an old peek.
You'll see.

(http://s1-02.twitpicproxy.com/photos/large/589292145.jpg)

Dave.
Title: Re: Updates @ PSU series?
Post by: dcel on May 30, 2012, 04:58:06 pm
TOO COOL! 8)

I can't wait to get one... well, I can now 'cause I bought a used Instek PST-3202 PSU off ebay waiting for the other uSupply.

Though, I can't wait for the details!

Looking forward to the next PSU installment...

Thanks for the pic, Dave, and I will probably pick one up when they become available...

Chris
Title: Re: Updates @ PSU series?
Post by: coasteraddict on August 28, 2012, 10:18:12 am
Dave, loving the PSU series, have you posted the code for the Rev B PSU anywhere it would be great to get a look.  The time circuits have fused so travelling to the future is out of the question right now.
Title: Re: Updates @ PSU series?
Post by: hans on September 01, 2012, 03:36:39 am
Breaking news! *alert alert*  :-X ;D

https://twitter.com/#!/eevblog/media/slideshow?url=http%3A%2F%2Ftwitpic.com%2Fap5usz

I was interested to take a look at it.. and it seems like it's indeed the SMD edition. But I suspect it is both PSU's combined (both a PC powered or battery). I recognize the same MIC2253 boost converter as in the supply rev C, an SOT-223 LT3080 (does it have enough cooling? Oh, too bad silkscreen doesn't work too good on bare copper ;) ). I think the MCU is ofcourse an ATMEGA168/328 with the 6-pin ISP AVR header. Battery charger probably left on top..
Seems like it has PC control because of 2 opto-couplers. I think a MCP2200 is used, or a recent FT chip (FT200 series?).

I'm very interested how much I guessed right  ::)
Title: Re: Updates @ PSU series?
Post by: EEVblog on September 01, 2012, 12:01:09 pm
I was interested to take a look at it.. and it seems like it's indeed the SMD edition. But I suspect it is both PSU's combined (both a PC powered or battery). I recognize the same MIC2253 boost converter as in the supply rev C, an SOT-223 LT3080 (does it have enough cooling? Oh, too bad silkscreen doesn't work too good on bare copper ;) ). I think the MCU is ofcourse an ATMEGA168/328 with the 6-pin ISP AVR header. Battery charger probably left on top..
Seems like it has PC control because of 2 opto-couplers. I think a MCP2200 is used, or a recent FT chip (FT200 series?).

I'm very interested how much I guessed right  ::)

Some right.
ATmega48
I got screwed on the FT230XS chip, no longer in stock anywhere it seems  >:(

Dave.
Title: Re: Updates @ PSU series?
Post by: EEVblog on September 01, 2012, 12:59:45 pm
I hoping to have something working for the Electronex show.

Dave.
Title: Re: Updates @ PSU series?
Post by: whatchitfoool on September 02, 2012, 03:15:20 pm
what display are you going with in that rev?  i don't see the DDDD anywhere.
Title: Re: Updates @ PSU series?
Post by: EEVblog on September 02, 2012, 06:43:09 pm
what display are you going with in that rev?  i don't see the DDDD anywhere.

The 8x2
I think there was another thread where this was discussed.

Dave.