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Old 22nd February 2012, 05:54 PM   #511
CeeVee is offline CeeVee  Portugal
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Quote:
Originally Posted by Bksabath View Post
Ok that is 2 comments and 49 view of the silly picture in less than 2 hours

camon dudes is your F5 in which ever flawor we working on.
Ok Bksabath here is my comment:


1 - Uktoecutter's PSU PCb includes discreet rectifiers and monitoring leds...your's does not.

2- that being said, the simpler the better is my PSU layout moto.

3- Uktoecutter assumes that we will all use small caps ( like Papa has truckloads off ) ..I for one will not for the simple reasons that i don't have tons of them and this board takes up a lot of horizontal space , a PCB like PA's posted earlier by Jacco is better in my opinion, uses fewer and bigger caps.

4 - I know these bigger caps are more expensive and capacitor plate surface area is smaller than a lot of small caps....but engineering is tradeoffs....

So in summing up i would love a more compact PSU for bigger caps and without the rectifiers....these being left out of pcb, can be put is other small spaces available in the case, somewhere near Trafo(s)...more flexible...also more wire i know.....

...my 2 cents worth

Last edited by CeeVee; 22nd February 2012 at 06:02 PM.
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Old 22nd February 2012, 05:56 PM   #512
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Please put my name down for 4 amp boards and 4 PSU boards.

Thanks!!
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Old 22nd February 2012, 06:02 PM   #513
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1 Course it does not question is stick with Papa 1 set of diodes or stick 2 set of diodes

Separate trafo taps

What is size of cap you are dreaming about The one of board are 6 mm pitch tiny litle ones still 63 V 10mU

The board lenght is 170 mm and 100 wide.

Monitoring leds that is a constructive comment Bravo

Last edited by Bksabath; 22nd February 2012 at 06:04 PM.
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Old 22nd February 2012, 06:09 PM   #514
CeeVee is offline CeeVee  Portugal
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Quote:
Originally Posted by Bksabath View Post
1 Course it does not question is stick with Papa 1 set of diodes or stick 2 set of diodes

Separate trafo taps

What is size of cap you are dreaming about The one of board are 6 mm pitch tiny litle ones still 63 V 10mU

The board lenght is 170 mm and 100 wide.

Monitoring leds that is a constructive comment Bravo
seems you did not like my comment, it was very much in favour of your approach....

I just limited myself to identifying differences!!!

no judgement of choices, each to his own ...but i would like fewer and bigger caps for a more compact PSU that is all.

I have a few of these caps ...enough for V2 which is what i am aiming for....
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Last edited by CeeVee; 22nd February 2012 at 06:19 PM.
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Old 22nd February 2012, 06:19 PM   #515
Itsmee is offline Itsmee  England
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Don't want to put a damper on an exciting project, but I can't help but feel the via (via R15) on the PSU board is a weak link, it wouldn't be too difficult to get rid of with a little re-routing.
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Old 22nd February 2012, 06:20 PM   #516
CeeVee is offline CeeVee  Portugal
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Quote:
Originally Posted by Itsmee View Post
Don't want to put a damper on an exciting project, but I can't help but feel the via (via R15) on the PSU board is a weak link, it wouldn't be too difficult to get rid of with a little re-routing.

That is just for monitoting led...not a problem.
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Old 22nd February 2012, 06:22 PM   #517
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Would you all like an alternative PSU?
I've no problem with that and I don't take it personal.
The PSU board is true to Nelson's schematic but I know alot of you plan to do your own whether they be CRC CC CLC is a matter of personal preference.
If there is a consensus I'm happy to accomodate.
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Old 22nd February 2012, 06:23 PM   #518
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Quote:
Originally Posted by Itsmee View Post
Don't want to put a damper on an exciting project, but I can't help but feel the via (via R15) on the PSU board is a weak link, it wouldn't be too difficult to get rid of with a little re-routing.
Itsmee

If you look close, there is a track on the underside which is 5mm thick.
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Old 22nd February 2012, 06:28 PM   #519
Itsmee is offline Itsmee  England
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Quote:
Originally Posted by UKToecutter View Post
Itsmee

If you look close, there is a track on the underside which is 5mm thick.
Exactly, the R15 via is carrying all the current from R1-7 to C10
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Old 22nd February 2012, 06:33 PM   #520
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Hmm, I would hope that wouldn't be a problem, especially when you consider that some power resistors have leads of 0.9mm diameter (e.g Futaba 10W)
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