solar powerde aa Nimh battery charger help

Thread Starter

ahead

Joined Nov 17, 2012
10
Hi Guys

I am working on my solar powered AA NiMH battery charger project. I have finished my charging circuit design, however, i also need to design a battery monitor circuit to indicator if the battery is charging and full charged. My professor asked us to use 2 LEDs lights as indicator lights. In the circuit design, i can design the whole circuit for charging 1 aa battery. Can anyone recommend a battery monitor circuit design for only indicating one battery status?
 

crutschow

Joined Mar 14, 2008
34,280
You can't simply determine the charge condition of a NiMH battery by measuring the charging voltage. You need a circuit that monitors the change in voltage as it charges.
 
Top