[sdiy] [semi-OT] Droop on power supply output voltage - when is it normal?

[Justin Owen]

Hello,

I marked this as OT because it came out of a conversation about an area of electro-mechanics/magnetics that I'm not at all familiar with.

Are there any examples where something that is connected to a correctly specced power supply causes the power supply output voltage to drop by 2-3 volts under *normal* operation (where, in this case normal operation is 9-10V)?

To me that would generally be a symptom of a problem - at least for SDIY stuff - but I was wondering if there were examples out there where a significant voltage drop would be considered part of normal operation?

Thanks,

- Justin