[sdiy] MIDI phantom power...over 5 pin MIDI connector ?

[eidorian at aladan.net]

Also see http://www.midisolutions.com/faqs.htm

Maybe contact those guys and see if they're willing to send you a 
service manual?

Cheers,
A.


On 2015-09-10 10:05, eidorian at aladan.net wrote:
> As I understand it, you get very little current (5mA) - just enough
> to drive a small microchip but not much else.  If you need more
> current than that then you'll need to use it sparingly (i.e. not draw
> on it all the time, so it can charge up a capacitor for when you do
> need it).  Having said that, I once read somewhere that some (most?)
> MIDI outs can provide more than 5mA, but I'm not sure I'd rely on
> that.
>
> Not really all that helpful sorry.  Hopefully someone with some
> actual practical experience in this area will respond :)
>
> Cheers,
> A.
>
>
> On 2015-09-10 09:43, jpdesroc wrote:
>> Does anybody have schematics of an easy way to send
>> power using the 2 MIDI pins in a 5 pins cable ?
>> I don't want to use any of the 3 remaining wires of the cable
>> for universal use on ANY MIDI cables..
>> I know this company uses that technology:
>>
>> http://www.midisolutions.com/prodmrg.htm
>>
>> but I can't find any circuit ideas that uses it..
>> I know I'll need some kind of charge pump design to get something 
>> like 5 volts
>> out of the MIDI (idle or in use) signal.
>>
>> Any clues ?
>>
>> JP
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