I'm making a phantom supply for a pedal that I'm prototyping. I have a working design based off of the info I got in this thread, http://www.diyaudio.com/forums/power-supplies/187737-would-work-15vac-12vdc-24vdc.html#post2558928. The phantom power works just fine but it took more components to build the power supply than the pedal itself as people in the thread mentioned might be the case. I just didn't realize HOW big it would end up being.
I was hoping somebody could point me in the right direction for how to step up the voltage using a booster converter. I've been doing research and it seems like a boost converter chips (like the MAX668) are the right way to go for their size and efficiency. Can someone verify that? or suggest a better chip to start with? The other thing is I see that you have to use external components to set the output voltage. If it was just resistors I think I could figure it out but I see its more complicated than that. Does anyone know of a schematic floating around that already goes from 9vdc to 48vdc using a boost converter? or does anyone know of a good resource explaining how to find the right values for the external components of a boost chip? Any help would be greatly appreciated!