can a comparator read the out form the integrator circuit....the output of which is a negative voltage ramp.... and compare that with a reference voltage. Geneally whats the output of a comparator ...is it only high(+5V) or low(0V)... or anything else also.
Please clear.
Thanks

 

Here is the material covering comparators in the AAC ebook.

hgmjr

 

Hello,

The input and output of a comparator depend also on the powersupply.
If a comparator is connected to a powersupply that gives say +15 Volt for the positiv powersupply and -15 Volts for the negativ powersupply, than the output will swing between + 15 Volt and -15 Volt, depending on the inputs.
The reference voltage may be negativ in this case.

Greetings,
Bertus

 

Yes you can do it. Your comparator's output will swing between the two extreme voltages of your power supply. Thus, if you have a single supply (eg. 0-15 V) the output will rise to nearly 15 if the non-inverting input is more positive than the inverting input and to near 0 if the opposite happens. If you have a bipolar supply (eg. 15-0-(-15)) your output will go to near 15 if the non-inverting input is more positive than the inverting input and to near -15 if the opposite happens.

 

thanks mik3