scratch BPA200 pcb lay out - diyAudio
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Old 3rd August 2004, 04:08 PM   #1
digi01 is offline digi01  China
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Default scratch BPA200 pcb lay out

the PCB lay out is a pretty crazy DIY things for me

this is my BPA200 projects,the chips +/- rail and ground track has not finished yet,any suggestions??

the sch is based on the original BPA200 article,use DC serv.and the amp pcb is not including the push stage.
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Old 3rd August 2004, 05:13 PM   #2
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No need to use servos.
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Old 4th August 2004, 01:31 AM   #3
digi01 is offline digi01  China
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mmm...
because those 3886 chips need to leave certain distance.it happens that there is space of serv parts on the boards,I put it.

I think it's wise to provide the board space for serv circuit.If you do not like the BPA200 work at serv mode,just leave the serv chip socket empty.
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Old 16th August 2004, 02:12 PM   #4
digi01 is offline digi01  China
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optmize version,including input buffer.
the pdf file show top and silk layer
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Old 25th August 2004, 01:50 AM   #5
digi01 is offline digi01  China
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My matrix power supply boards,for BPA200.
a couple of typical unregulated bipolar power supply,and big caps of supply reservoir capacitance for each supply voltage rail.

the PCB board can mounting 300/400mil pins,44mm(max) diameter caps.

enjoys
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Old 25th August 2004, 01:52 AM   #6
digi01 is offline digi01  China
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another small design.
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Old 25th August 2004, 02:15 PM   #7
digi01 is offline digi01  China
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ver#1.0 source share.
try upload my BPA200 gerber files.can anybody give me a rank

enjoys
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Old 25th August 2004, 06:02 PM   #8
Mad_K is offline Mad_K  Norway
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Quote:
Originally posted by digi01
optmize version,including input buffer.
the pdf file show top and silk layer

Do you not have ANY psu decoupling caps on the mainboard?
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Old 26th August 2004, 02:46 AM   #9
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The main board was not set up any bypass caps.I have leave a series holes near the chips for mounting the mother rails of power supply.
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Old 15th February 2005, 10:25 PM   #10
troystg is offline troystg  United States
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Quote:
Originally posted by digi01
ver#1.0 source share.
try upload my BPA200 gerber files.can anybody give me a rank

enjoys

Hey digi01-

Will you be offering these boards for sale too?

I have the perfect chassis for a pair!
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