MrJingle Posted December 4, 2004 Report Share Posted December 4, 2004 Hi!I'm building a MIDI filter using this design:http://www.ucapps.de/midifilter.htmlI want the unit to be self-powered via MIDI like the Midisolutions' products:http://www.midisolutions.com/products.htmThey mention in the FAQ that the optoisolator is removed in the MIDI input of circuit to be able to power the device.http://www.midisolutions.com/faqs.htm (Q: Will inserting MIDI Solutions products in my setup cause ground loops?)I want to remove the optoisolator in the Filter design but I do not know what remaining parts are needed for the circuit to function properly.Could some electronically skilled person help me with a proper solution?Regards, MrJingle Quote Link to comment Share on other sites More sharing options...
TK. Posted December 4, 2004 Report Share Posted December 4, 2004 Hi,also the MIDIbox project has a FAQ:http://www.avishowtech.com/midibox/wiki/index.php/Question%20and%20Answers#QA37(there is no proper solution)Best Regards, Thorsten. Quote Link to comment Share on other sites More sharing options...
MrJingle Posted December 4, 2004 Author Report Share Posted December 4, 2004 Thanks a lot for your quick reply!I'm definately NOT an experienced electronic expert, but my approach is "learning by doing" so I'll give the hinted solution in the FAQ a shot.I suppose that the reason the Midisolutions' stuff works is that they don't use PIC's for their units, right?Regards, MrJingle Quote Link to comment Share on other sites More sharing options...
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