Damn good idea.
The polyswitch fuses can also improve on-card
power supply filtering (by being slightly resistive)
and cause a softer start on the power supply.
H^) harry
Grant Richter <
grichter@...> wrote: Here is a practical idea.
You have three pads labeled +V, Ground and -V. These go to resetable polyfuses and
1N4001 diodes to protect the circuitry in case the 12 year old science fair student hooks
something up wrong.
direct link to schematic:
http://www.blacet.com/techPS.gif From John Blacets fine technical page.
http://www.blacet.com/tech.html Then the end user can wire up ANY kind of connector he wants to hook up to those three
pads.
The 1/3 square inch of board spaced used can substitute for the 2 square inches of board
space it would take to support every possible connector type that will probably change or
go obsolete anyway, and who has all the mechanical drawings need to make the custom
PC board connector footprints? And who is going to take responsibility for everything
being correct with each connector type, and what if the manufacturer changes the pinout
or adds something new??????
Just take an existing "fill in the blank" system power cable, chop one end off and solder
the appropriate three wires to the three pads on the CVS board and be done with it.
--- In ComputerVoltageSources@yahoogroups.com, "John Loffink" <jloffink@...> wrote:
>
> Good point. Here's what could be supported based upon PCB stuffing options:
>
> Synthesizers.com 6 pin 0.100"
> MOTM/Blacet 4 pin 0.156" add 5 V regulator
> MOTM 6 pin 0.156"
> Modcan 3 pin 0.156" add 5 V regulator
>
> Any others?
>
> John Loffink
> The Microtonal Synthesis Web Site
> http://www.microtonal-synthesis.com
> The Wavemakers Synthesizer Web Site
> http://www.wavemakers-synth.com
>
>
> > -----Original Message-----
> > From: ComputerVoltageSources@yahoogroups.com
> > [mailto:ComputerVoltageSources@yahoogroups.com] On Behalf Of Larry T.
> >
> > I would like to suggest that, if at all possible, we include both the
> > Blacet/MOTM 4 pin +/-15v power connector. and the Synthesizers.com
> > +5/+/-15v 6 pin connector. The board could allow for the optional +15
> > to +5 regulators when using the 4 pin connector. Some of us already
> > have +5 in our systems, and generally, no matter how much ANYTHING you
> > come up with will use (short of a room heater), the +5v supply is
> > never anywhere near being used to it's rated output. I note that some
> > of the newer MOTM boards also use a seperate +5v supply.
> >
> > I bring this up in part because of the LED/LCD/VFD discussions, and
> > partly because the MPU in consideration has requirements for +5v, and
> > I really don't want to add more +15 to +5 regulators to my already
> > stressed out +15v supply, when I have 4-6A of un-touched +5 just
> > sitting around asking to be used.
> >
>
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