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[SOLVED] Help To Turn On and Turn Off LED with Threshold

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DianWardiana

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Up Threshold is 6V
Low Threshold is 4.2V

My question is how to build the circuit?

Regards,
Dian
 

KlausST

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Hi,

Search for "comparator hysteresis".
Here in the forum or/and in the internet.

To drive the LED I recommend to add a mosfet at the output.
If your comparator has open_drain or open_collector output, then you need to connect a pullup resistor.

Klaus
 

DianWardiana

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Hi,

Thanks that you always helped me.

Regards,
Dian
 

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