Hi, i forgot to ask one thing. My transformer is about 1 - 2 A. I
don't know what is the correct. how can i test with my multimeter?.
Besides if it is a 1A or 2A transformer, how can i reduce the current
to 700mA.
regards
Hi Vinod,
The circuit is OK, but won't be accurate, will give you a lot of trouble
> while adjusting.
A 1 amp transformer would provide 1amp when short circuited
(check by connecting the meter prods to the supply wires at 10amp range
and set to either DC or AC depending upon the output). Meaning the
maximum power of is 1amp at zero volts. You may use it freely with a 7.5
ah battery, it won't do any harm, as the voltage would drop to the
battery voltage level at 700ma current and the battery would get safely
charged. But remember to disconnect the battery when the voltage reaches
14 volts.
Anyway, a current control facility would be added in the circuit that I would be providing you, so there's nothing to worry
Regards.
Hi Vinod,
>> >
>> > I'll provide you with a perfect and easy automatic circuit, please wait
>> > until tomorrow.
Hi swagatam,
I hope you will help me to find a better solution. Thank you.
regards
vinod chandran
In the meantime, another keen follower of this blog Mr.Sandy also requested a similar battery charger circuit through comments......
So finally I designed the circuit which will hopefully satisfy the needs of Mr.Vinod and Mr.Sandy for the intended purpose.
The following figure shows an automatic 3 to 18 volts, voltage controlled, current controlled, double stage battery charger circuit with standby charging feature.