I am new to this forum and would appreciate your help on the following problem.
I am looking to build a little logic circuit that pulls an output to logic high (i.e. 5V in my intended use) if a floating input voltage is positive (50mV<U<30V).
Reversely, the output should be logic low (0V) when the input voltage is negative (-30V<U<-50mV).
The input voltage will be small most of the time, although it will float around +30V.
Ideally, changing from high to low should have a few seconds delay. Low to high should change immediately.
I can feed the circuit from +30V or +5V, both are available.
Thanks for your input
edit: corrected sign for negative condition
I am looking to build a little logic circuit that pulls an output to logic high (i.e. 5V in my intended use) if a floating input voltage is positive (50mV<U<30V).
Reversely, the output should be logic low (0V) when the input voltage is negative (-30V<U<-50mV).
The input voltage will be small most of the time, although it will float around +30V.
Ideally, changing from high to low should have a few seconds delay. Low to high should change immediately.
I can feed the circuit from +30V or +5V, both are available.
Thanks for your input
edit: corrected sign for negative condition
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