rjb5191
Well-known member
Hello,
I'm working on Racking up some Mccurdy AT285 line amps as mic pre's that run on 48 VDC. I want to power up to 4 modules (50 mA of consumption each) and was planning on using this International Power supply:
https://www.mouser.com/ProductDetail/International-Power/IHB48-05?qs=0xCm9DOQnC5e1IHcBWExhw%3D%3D
Maybe this is an obvious question but I scoured GroupDIY and couldn't find an answer. If I connect all of the modules to the same power supply (in parallel i guess), do I need to isolate each positive power rail somehow? like using a diode in series between the power supply + output and the module on each of the 4 lines? Or is this unneccessary? Are there any other best practices in this area that I need to watch out for?
Also, since the modules run at 48 VDC, is there any problem with adding phatom power from the same source or would it be better to add an additional separate phantom supply? If I can run the phantom power from the same source would there be any isolation required and what would that look like?
thanks for any help
I'm working on Racking up some Mccurdy AT285 line amps as mic pre's that run on 48 VDC. I want to power up to 4 modules (50 mA of consumption each) and was planning on using this International Power supply:
https://www.mouser.com/ProductDetail/International-Power/IHB48-05?qs=0xCm9DOQnC5e1IHcBWExhw%3D%3D
Maybe this is an obvious question but I scoured GroupDIY and couldn't find an answer. If I connect all of the modules to the same power supply (in parallel i guess), do I need to isolate each positive power rail somehow? like using a diode in series between the power supply + output and the module on each of the 4 lines? Or is this unneccessary? Are there any other best practices in this area that I need to watch out for?
Also, since the modules run at 48 VDC, is there any problem with adding phatom power from the same source or would it be better to add an additional separate phantom supply? If I can run the phantom power from the same source would there be any isolation required and what would that look like?
thanks for any help