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You say the only thing that will be powered by the ±12 V supplies is a comparator. The first thing I would look at is whether you really need the comparator to run from that voltage range. Presum...
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#2: Post edited
by
Olin Lathrop
·
2023-12-03T17:34:40Z (12 months ago)
- You say the only thing that will be powered by the ±12 V supplies is a comparator. The first thing I would look at is whether you really need the comparator to run from that voltage range.
Presumably you are asking for ±12 V because that is the range of the signals being compared. Use resistors to get the signals into the 0 to 5 V range, then run the comparator off the existing 5 V supply.
- You say the only thing that will be powered by the ±12 V supplies is a comparator. The first thing I would look at is whether you really need the comparator to run from that voltage range.
- Presumably you are asking for ±12 V because that is the range of the signals being compared. Use resistors to get the signals into the 0 to 5 V range, then run the comparator off the existing 5 V supply.
- <blockquote>I need comparator output to be +-12V, not 0/5V.</blockquote>
- Then you need to explain more about your overall system. Where does this -12 V to +12 V signal go if there are no such supply voltages anywhere? This smells like an X-Y problem.
#1: Initial revision
by
Olin Lathrop
·
2023-12-03T14:34:57Z (12 months ago)
You say the only thing that will be powered by the ±12 V supplies is a comparator. The first thing I would look at is whether you really need the comparator to run from that voltage range. Presumably you are asking for ±12 V because that is the range of the signals being compared. Use resistors to get the signals into the 0 to 5 V range, then run the comparator off the existing 5 V supply.