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shadders
United Kingdom
224 Posts |
 Posted - 18 Apr 2013 : 20:36:28
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Hi,
I am designing a power amplifier - and due to the number of components and proposed board layout, i was planning to use a number of wire links to ensure the integrity of a continuous ground plane.
Are wire links in analogue PCB design relatively common or acceptable ?.
Are there any drawbacks at all ?
Thanks in advance,
Regards,
Shadders. |
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Iain Wilkie
United Kingdom
1015 Posts |
Posted - 18 Apr 2013 : 20:48:49
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Hi Shadders,
If its audio power I doubt if there would be any problem, but you would not normally want to link planes with local links as this mean the planes are being joined by a localised inductive connection. Unless your trying to do this on a two layer board, there should be no problem in maintaining a continuous power plane anyway.
Iain |
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shadders
United Kingdom
224 Posts |
Posted - 18 Apr 2013 : 21:20:54
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Hi Iain,
Thanks for the reply.
This is for a number of single resistor connections across the board, to allow the ground plane to be uninterrupted. I have seen designs with links, but was not sure if there were any disadvantages.
Thanks for your guidance on this, much appreciated.
Regards,
Shadders. |
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Iain Wilkie
United Kingdom
1015 Posts |
Posted - 18 Apr 2013 : 21:42:51
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Shadders, is it an audio design, an if not, what frequency ?
Iain |
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shadders
United Kingdom
224 Posts |
Posted - 18 Apr 2013 : 22:28:52
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Hi Iain,
Yes, and audio power amplifier - cut off frequency closed loop will be 100kHz approximately.
I think standard wire links at this frequency should be ok.
Would you agree with this ?.
Thanks and regards,
Shadders. |
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Iain Wilkie
United Kingdom
1015 Posts |
Posted - 19 Apr 2013 : 09:32:39
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I cannot see this being a problem, just ensure your links are as short as you can make them, and that they are heavy enough for the currents involved.
Iain |
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shadders
United Kingdom
224 Posts |
Posted - 19 Apr 2013 : 09:54:14
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Hi Iain,
Thanks - yes will do.
Regards,
Shadders. |
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Topic |
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Use of Wire Links