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Old 24th February 2008, 07:08 PM   #101
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Jan,
That looks great. It looks like you were able to accommodate most all of the requests.
If I may make one suggestion. Can you put an extra set of smaller diameter pads attached to the outside edge of each of the electrolytic's pads, so that they may be bypassed on the underside of the board? It shouldn't affect anyone that doesn't want to do it, but will give the possibility to those that do.
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Old 24th February 2008, 07:41 PM   #102
gary s is offline gary s  Australia
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Hi Jan.

I agree with Donovan, the design looks good - you have shown nice heavt tracks.

Regards

Gary..
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Old 25th February 2008, 03:51 AM   #103
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Hi Jan,

Is one of this PSUs intended to drive more than one PCB ?

Is it ok with one trafo of 600VA, 2x35VAC driving one PSU, to deal with two Lynx PCBs ?

Im thinking of instability etc, the thickness of the copperlaminat and intensions of selecting components for more than one PCB drive.
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Old 25th February 2008, 04:21 AM   #104
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As on all other Power Amps you can run either one or two channels from the same Power Supply

I will add some pads for decoupling caps to be placed on solder side of the PCB .....
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Old 25th February 2008, 12:39 PM   #105
housing is offline housing  Hong Kong
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Hello Jan,

Could you please add pads to accommodate my IXYS FRED DSEI 60-02A which is a TO-247?

Thank you very much.
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Old 25th February 2008, 03:10 PM   #106
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housing;

I think you get a very tight fit with your TO-247 FRED's and the Fischer SK104 sinks.
The wide of your FRED's are stated 15.75 to 16.26mm. The room on the Sk104's are 16mm.
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Old 25th February 2008, 03:28 PM   #107
housing is offline housing  Hong Kong
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But will still fit the old Motorola MUR3040 which is 14mm wide if pads are available.
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Old 25th February 2008, 05:07 PM   #108
steenoe is offline steenoe  Denmark
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Quote:
Originally posted by housing
But will still fit the old Motorola MUR3040 which is 14mm wide if pads are available.
It will cost you approx 15USD to invest in the appropriate diodes



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Old 25th February 2008, 05:23 PM   #109
housing is offline housing  Hong Kong
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Quote:
Originally posted by steenoe


It will cost you approx 15USD to invest in the appropriate diodes



Still have 30 pieces of IXYS and 16 pieces of MUR in my DIY cabinet. They need to be used up.
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Old 26th February 2008, 01:20 AM   #110
gary s is offline gary s  Australia
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Hi Jan.

How long do you think it will be before you put up a thread for interest in a group buy on this PSU board. I think your design is very close to being finished as you have shown - just need to add pads for bypass caps for the electro's.

I am assuming you may want to get the Lynx power amp PCB group buy out of the road first.

Keep us posted.

Regards

Gary..
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