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OpenStudy (anonymous):
Can someone explain what is a comparator and why u use it?
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OpenStudy (anonymous):
I know it Can be used for alarm circuits but I don't know what else it can be used for
OpenStudy (anonymous):
A comparator is used to compare voltages at its input.........an operational amplifier can be used as a comparator...
OpenStudy (anonymous):
Basically a comparator compares two voltages. If the one connected to the + port is higher than the one connected to the - port, the output goes high. Otherwise, it goes low.
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