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Old 4th December 2009, 05:44 PM   #1001
Cobra2 is offline Cobra2  Norway
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You won...! -the right to make the board wider, and maybe implement dual mosfets at each end?

Arne K
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Old 4th December 2009, 05:47 PM   #1002
cviller is offline cviller  Canada
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You may not believe me, but I was already thinking along those lines - the only problem is that I need to write more stuff on the boards, so that people don't get confused.

So unless I trace myself into a corner I'll add extra fets.
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Old 4th December 2009, 05:55 PM   #1003
ichiban is offline ichiban  United States
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Quote:
Originally Posted by Cobra2 View Post
You won...! -the right to make the board wider, and maybe implement dual mosfets at each end?

Arne K

Yes!!!
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Old 4th December 2009, 07:05 PM   #1004
labjr is offline labjr  United States
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You won...! -the right to make the board wider, and maybe implement dual mosfets at each end?

Arne K
Myself , I think the original circuit is fine. Having the FETs on the end is fine but not absolutely neccessary. You could go overboard trying to include everything. Remember KISS.
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Old 4th December 2009, 07:08 PM   #1005
cviller is offline cviller  Canada
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Well I didn't take the "end" part to literally - I thought I could increase the board size by just adding a new set of mostfets. You could then use them or ignore them.
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Old 4th December 2009, 07:25 PM   #1006
cviller is offline cviller  Canada
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Default F5 version 2

Ok, this is not the final design, but here is what I had in mind.


The board is 180x50 mm
Attached Images
File Type: png f5_v2.png (47.2 KB, 448 views)
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Old 4th December 2009, 07:43 PM   #1007
Tea-Bag is offline Tea-Bag  United States
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nice, I will take that and a BA front end please.....
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Old 4th December 2009, 08:14 PM   #1008
Cobra2 is offline Cobra2  Norway
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If possible, moove the thermistor between the mosfets, so you easily can choose, if only using one pair.

Arne K
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Old 4th December 2009, 08:28 PM   #1009
Tea-Bag is offline Tea-Bag  United States
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If possible, moove the thermistor between the mosfets, so you easily can choose, if only using one pair.

Arne K
Or one could add a second set of holes, but I think in operation only one is needed per rail.
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Old 4th December 2009, 08:37 PM   #1010
labjr is offline labjr  United States
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With two pairs of outputs some of the simplicity is lost and you'll need a lot more heatsink too.
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