Power Amp PSU Board (for e.g. LYNX Amp) - Page 10

Jan Dupont · 19th February 2008, 09:17 PM

While waiting for some comments, I made a test layout of the Rectifier/Cap board without onboard CRC, but with possibillity for external CRC circuits.

Lenght then redused to 29.5 mm

gary s · 19th February 2008, 09:53 PM

Hi Jan

I also have no problem with this longer board. My only comment would be that you could probably fit in three off 3watt CRC resistors in the space you have shown for each rail on the PCB.

If people do not want to use the resistors, they can simply link them out, or wire in an external off board inductor for those using CLC filter.

Regards

Gary..

Jan Dupont · 20th February 2008, 04:31 AM

Gary;

Yes! There is room for three 3W resistors if CRC connectors are removed....

However then no room for proper connection to external circuits.

gary s · 20th February 2008, 05:04 AM

Hi Jan.

Perhaps you can have pads for the CRC resistors on the board and then another 2 pads to connect an external inductor. Forget about connectors here. Just my thoughts.

Regards

Gary..

Jan Dupont · 20th February 2008, 09:07 AM

I will post a layout later when I'm home from work

Jan Dupont · 21st February 2008, 05:00 AM

Lastest edition

I have added pads for RCL what ever ........
If there is interest for this layout I will add som more pads in the filter area and make the tracks........

gary s · 21st February 2008, 07:08 PM

Hi Jan

This looks good to me. You have all bases covered from what you have shown here. Now all you need to do is add some nice heavy tracks for a stiff low impedance power supply that will suit all class A and A/B amp designs from 10 watts to 500 watts per channel

Good work, and I am sure you should get good interest for this design.

Best Regards

Gary..

Jan Dupont · 24th February 2008, 09:38 AM

Did a PCB temporary layout......

Jan Dupont · 24th February 2008, 09:40 AM

Top Copper

Jan Dupont · 24th February 2008, 09:41 AM

Bottom Copper

20th February 2008, 04:31 AM	#93
Jan Dupont diyAudio Member Join Date: Apr 2003 Location: Copenhagen, Denmark	Gary; Yes! There is room for three 3W resistors if CRC connectors are removed.... However then no room for proper connection to external circuits. __________________ Free Schematic and Service Manual downloads www.audio-circuit.dk, Company: www.dupont-audio.com, Joint venture: www.DupontMantra.com

20th February 2008, 09:07 AM	#95
Jan Dupont diyAudio Member Join Date: Apr 2003 Location: Copenhagen, Denmark	I will post a layout later when I'm home from work __________________ Free Schematic and Service Manual downloads www.audio-circuit.dk, Company: www.dupont-audio.com, Joint venture: www.DupontMantra.com

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19th February 2008, 09:53 PM	#92
gary s diyAudio Member Join Date: Nov 2002 Location: Australia	Hi Jan I also have no problem with this longer board. My only comment would be that you could probably fit in three off 3watt CRC resistors in the space you have shown for each rail on the PCB. If people do not want to use the resistors, they can simply link them out, or wire in an external off board inductor for those using CLC filter. Regards Gary..

20th February 2008, 05:04 AM	#94
gary s diyAudio Member Join Date: Nov 2002 Location: Australia	Hi Jan. Perhaps you can have pads for the CRC resistors on the board and then another 2 pads to connect an external inductor. Forget about connectors here. Just my thoughts. Regards Gary..

21st February 2008, 07:08 PM	#97
gary s diyAudio Member Join Date: Nov 2002 Location: Australia	Hi Jan This looks good to me. You have all bases covered from what you have shown here. Now all you need to do is add some nice heavy tracks for a stiff low impedance power supply that will suit all class A and A/B amp designs from 10 watts to 500 watts per channel Good work, and I am sure you should get good interest for this design. Best Regards Gary..