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Hello, I am currently working on an audio amplifier that makes use of +/- 40 VDC.
This project encorporates a digital control panel, where I would like the system to be able to alert the user when one of the supply rails is at an unusual voltage.
I guess wha Im looking for is a device or circuit that can monitor each 40vdc rail and alert the user if, most importantly, the rail drops to zero and if possible, also alert the user if it is say, 30v or less or 50v or more, although this is less important.
I realise that a comparator may be the answer, but is this voltage too high for it? How could I provde a voltage reference for thr comparator?
I also considered a heavy duty resistor and optocoupler to detrtmine when the power rail fails, but this seems 'unprofessional' or at best inefficent.
Surely there is a better way.
I apprciete any and all feedback
-Michael
This project encorporates a digital control panel, where I would like the system to be able to alert the user when one of the supply rails is at an unusual voltage.
I guess wha Im looking for is a device or circuit that can monitor each 40vdc rail and alert the user if, most importantly, the rail drops to zero and if possible, also alert the user if it is say, 30v or less or 50v or more, although this is less important.
I realise that a comparator may be the answer, but is this voltage too high for it? How could I provde a voltage reference for thr comparator?
I also considered a heavy duty resistor and optocoupler to detrtmine when the power rail fails, but this seems 'unprofessional' or at best inefficent.
Surely there is a better way.
I apprciete any and all feedback
-Michael