I am having trouble figuring out the operation of my voltage comparators.
I have both dual (LM393N)
and Quad (LM339N)
my understanding is you would give it +5 vdc on VCC+, ground on VCC-
and then if the voltage on input 1+ is higher than the voltage on input 1-, then the output goes to 5 volts, if not, it goes to ground (0 volts)
the closest I have gotten is when the voltage is higher on one input, the LED on my output gets slightly brighter because it has a better ground. I have not been able to put voltage to the output.
Are there any rules of thumb for what voltage and amperage I should use to power it, and any minimum or maximum on the inputs. Do I need to use pull up or pull down resistors on any legs/connections
I am currently using a battery pack with some old AAs in it to get just over 5volts. I am testing it on a breadboard to see how it works before attempting to build a circuit.
Thank you very much for any help.
I have both dual (LM393N)
and Quad (LM339N)
my understanding is you would give it +5 vdc on VCC+, ground on VCC-
and then if the voltage on input 1+ is higher than the voltage on input 1-, then the output goes to 5 volts, if not, it goes to ground (0 volts)
the closest I have gotten is when the voltage is higher on one input, the LED on my output gets slightly brighter because it has a better ground. I have not been able to put voltage to the output.
Are there any rules of thumb for what voltage and amperage I should use to power it, and any minimum or maximum on the inputs. Do I need to use pull up or pull down resistors on any legs/connections
I am currently using a battery pack with some old AAs in it to get just over 5volts. I am testing it on a breadboard to see how it works before attempting to build a circuit.
Thank you very much for any help.