Hi all. I hope you can help, this is driving me nuts.
Attached is the DXF (zipped) of my circuit.
The problem is the potentiometer isnt allowing me to properly adjust the charge point. Normally it is set near full clockwise, which sets it to the lowest possible charge threshold, around 12.5V
When a battery below this is connected, the Fast Charge LED lights and the battery begins charging.
So currently, I cant seem to set the threshold properly which is most likely a resistor value issue. Some values are slightly off. I corrected one resistor which seemed to fix the threshold setting but the charger never seems to want to cut off at all once it starts!
My questions are:
What mode are the op-amps running in?
What tells the charger to stop charging? My guess is over-current protection
What is the best way to troubleshoot this circuit?
What is the best way to set and test this circuit?
How much is Xanax?
Arggh. Thanks for any help.
Cloud
Attached is the DXF (zipped) of my circuit.
The problem is the potentiometer isnt allowing me to properly adjust the charge point. Normally it is set near full clockwise, which sets it to the lowest possible charge threshold, around 12.5V
When a battery below this is connected, the Fast Charge LED lights and the battery begins charging.
So currently, I cant seem to set the threshold properly which is most likely a resistor value issue. Some values are slightly off. I corrected one resistor which seemed to fix the threshold setting but the charger never seems to want to cut off at all once it starts!
My questions are:
What mode are the op-amps running in?
What tells the charger to stop charging? My guess is over-current protection
What is the best way to troubleshoot this circuit?
What is the best way to set and test this circuit?
How much is Xanax?
Arggh. Thanks for any help.
Cloud