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Forum Index : Electronics : Stock Std Warpinverter

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mackoffgrid

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Joined: 13/03/2017
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Posted: 12:30am 21 Jul 2019
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Thanks Mark.

Geez, JLC are getting slow
(I've actually received PCBs on a Sunday - DHL. Was very impressed)

Did you get a different colour than green? They claim they need more time for the other colours.
 
renewableMark

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Joined: 09/12/2017
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Posted: 12:40am 21 Jul 2019
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Nup all just stock std, 1oz and green.
Cheers Caveman Mark
Off grid eastern Melb
 
Warpspeed
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Joined: 09/08/2007
Location: Australia
Posts: 4406
Posted: 01:49am 21 Jul 2019
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  mackoffgrid said   Tony, What was that alternate part for the TLP250 / 3120 driver?

The FOD3182 is more suitable if you plan to run +12v gate driver power supplies. The undervoltage shut down operates within a lower voltage range that is more compatible with a 12v supply.

The TLP250 and HCLP3120 are better with +15v supplies, although may(?) still work with 12v, but its a bit dodgy. Worst state startup voltage can be up to +13.5v with the HCLP.

All are directly pin compatible.
Cheers,  Tony.
 
renewableMark

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Posted: 09:32am 21 Jul 2019
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DHL delivered on Sunday afternoon! F me, pretty good service.

Anyway got the boards, they look good.

So this will be the layout.
Three power boards for No1, 1 full driver and 2 half driver boards.
One power board for No 2 full driver board.
No3&4 both have 2x Warp half driver boards.








So when the driver boards are plugged in properly above the power boards they look like this.


Edited by renewableMark 2019-07-22
Cheers Caveman Mark
Off grid eastern Melb
 
mackoffgrid

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Posted: 10:02am 21 Jul 2019
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Yes, it's fantastic. Both DHL and even more so, JLCPCB and the like.

Tony, I thought I'd order some of those drivers even though I'll stick to 15V, just to have them - AliExpress one's of course





 
renewableMark

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Posted: 10:54am 21 Jul 2019
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The FOD3182 is good up to 30V so why not use that anyway?
Cheers Caveman Mark
Off grid eastern Melb
 
Warpspeed
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Posted: 12:36pm 21 Jul 2019
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I have used the HCPL3120 for years, its an ancient chip, sill have about thirty of them in a drawer here.

But I too will get some of those FOD3182 chips, as 15 volts dc seems to be going out of fashion for some strange reason.
Cheers,  Tony.
 
renewableMark

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Posted: 03:08am 27 Jul 2019
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Hey guys, just noticed one of my caps came with a dent on it, probably only pushed in by 1mm.
I have never used a cap with any damage before, is this anything to be worried about?
I got these from element 14, never had to send anything back yet so dunno what they are like with returns.
Cheers Caveman Mark
Off grid eastern Melb
 
renewableMark

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Posted: 03:42am 27 Jul 2019
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BTW I squeezed it as hard as I could with my thumbs and couldn't put even a tiny dent in it, so it must have copped a decent knock.

I have no idea how tolerant these things are to things like that.
Cheers Caveman Mark
Off grid eastern Melb
 
Solar Mike
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Joined: 08/02/2015
Location: New Zealand
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Posted: 05:22am 27 Jul 2019
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  renewableMark said  BTW I squeezed it as hard as I could with my thumbs and couldn't put even a tiny dent in it, so it must have copped a decent knock.

I have no idea how tolerant these things are to things like that.


I would return it, have had no issues returning fake mosfets back to Element14 and getting a refund.

Cheers
Mike
 
renewableMark

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Posted: 06:58am 27 Jul 2019
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Jeez Mike, that's a bit rough with them selling fake mosfets, dunno if you would catch RS doing that.
Cheers Caveman Mark
Off grid eastern Melb
 
renewableMark

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Posted: 10:17am 27 Jul 2019
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Hey Andrew,
what is that insulating material you used there mate?


I thought I would use this old ladder that has sat behind the shed for 10 years, that should manage the heat ok yeah?




Here is a pic of the two boards together fitted with the cap.
The more I see this the more I like it, very well thought out.




Good work there Andrew.
Cheers Caveman Mark
Off grid eastern Melb
 
mackoffgrid

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Posted: 12:38pm 27 Jul 2019
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Looking Good Mark

Thanks for the compliment. I'm glad that capacitor fits ok, boy it really makes a 100mm PCB look small

Those plastic insulators are 3D printed.

That Ladder fibreglass would be far superior, but geez that those ladders are worth a bit.

I'm happy to print some spacers up but they may not fit your job.
I cut up plastic containers and all sorts of things when I first put it together. I've not even got my heatsink warm yet, 500 watts just doesn't do it.

The insulators are only needed for the smaller bridges so I don't expect them to get overly warm. And that is because they are not rigidly mounted. I have a big 3D printer going now, so If I did it now I'd make one big plastic unit to go under the last two bridges.

I'll probably shut the inverter down if it reaches 60 something degrees C so the plastic bits should be ok.


Cheers
Andrew
 
renewableMark

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Posted: 11:15pm 27 Jul 2019
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Yeah, the cap fits perfectly in the holes, thanks for doing that.

That ladder is just a fold out A frame, not a nice extension one.
Never get much selling it, so better off using it for something worthwhile myself.

The heatsinks will need something fairly sturdy to hold them, as they will be fitted vertically on a draw slide that will go in a locker.

Haven't worked out that design yet, was about to cut an aerosharp heatsink down yesterday, but it started to rain.

When all the bits are at hand some ideas will come to mind, was thinking something like a rectangular roof truss type layout of the fibreglass to support it all.

This unit will cop a decent hiding, my wife has no idea of spreading out loads, I have given up trying to educate her, just now she put the kettle, toaster and microwave on all at the same time.
Cheers Caveman Mark
Off grid eastern Melb
 
mackoffgrid

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Posted: 01:46am 28 Jul 2019
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Aside from your fibreglass ladder
Don't forget the pultrided stuff that Tony mentioned. Pultruded Angle

cheers
Andrew
 
Warpspeed
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Posted: 03:45am 28 Jul 2019
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Hi Mark, have been having trouble logging into the new system.

An internet search turned up a company called "Composite Engineering" in Brooklyn Melbourne. https://www.compositeengineering.com.au/

They appear to stock all the pultrided fibregass sections, and may be worth a visit.
Cheers,  Tony.
 
Warpspeed
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Posted: 04:40am 28 Jul 2019
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Sizes and profiles available:
And its really STRONG.

https://www.compositeengineering.com.au/wp-content/uploads/Pultruded-Profiles.pdf
Cheers,  Tony.
 
renewableMark

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Posted: 06:54am 28 Jul 2019
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Thanks Tony,
I stripped that ladder down already, it was of no use to me.

That should do nicely.
Cheers Caveman Mark
Off grid eastern Melb
 
renewableMark

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Posted: 09:50am 29 Jul 2019
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Just trying to plan out how this will all fit.




Unfortunately due to my big capacitors they block the negative input pads.

I would prefer to use a copper bar anyway, but it can't fit, unless the big cap pads get moved.

So Andrew, sorry to be a major pain in the ass, but could you move the pads left 8mm and down 8mm?




I'll fix you up for your time, that is just something I don't know how to do.
Cheers Caveman Mark
Off grid eastern Melb
 
mackoffgrid

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Posted: 11:33am 29 Jul 2019
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Don't worry about it

I'll look at it tomorrow - I'm still in PCB drawing mode I'm up to 8 PCBs in my JLCPCB shopping cart - one to go

How are you going to attach the copper bar?
Do you need additional holes to fix the bar?
Do you want an area left un-masked to contact the bar?


Cheers
Andrew
 
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