Hi Vinod,
That's perfect.
Adjust the transistor base preset until the LED just starts glowing dimly at around 14 volts, with no battery connected.
Regards.
Hi Swagatam
Your Idea is graet. The charger is working and now one LED is glowing
to indicate the charging is in progress. but how can i configure the
charge full indicator LED. When i turn the pot to ground side (means
lower resistance) LED starts glowing. when resistance goes high LED
will be off. After 4 hours of charging my battery shows 13.00v. But
that charge full LED is off now. Plz help me.
Hi swagatam,
I am sorry disturb you again. The last email was a mistake. i didn't
see your suggestion correctly. So please ignore that mail. Now i adust
the 10k pot to 14.3v(it's quite difficult to adjust the pot, because a
slight variation will result a bigger voltage output. ). And i adjust
the 1k pot to glow a little. Is this charger supposed to indicate a
14v battery?. After all let me know the danger level full charge of
the battery. Once again thanks.
regards
vinod chandran
Hi Swagatam,
As you suggested, everything was alright when i test the circuit from
breadboard. But after solder into PCB thing are happening strangely.
The red LED is not working. charging voltage is ok. Anyway i am
attaching the image that shows the present condition of the circuit.
plz help me. After all let me ask you one thing. Could you please give
me an automatic charger circuit with a battery full indicator. ?.
Hi swagatam,
Actually i am in the middle of your automatic charger with hysteresis
feature. I just added a few modifications . i will attach the circuit
with this mail. plz check this out. If this circuit is not ok then i
can wait for you to tomorrow .
regards
vinod chandran