designing a battery charger

[filipedeoli]

Hi everyone,

I need to build a battery charger, but I do not know where I start to do it.

I need a battery charger of Lead-Acid and other Ni-Cd.

please help me where I can find something like that.

thanks

 

[kak111]

I need a battery charger of Lead-Acid and other Ni-Cd.

Voltage and current of charging ???
Supply from 120Vac or 230Vac or ???

 

[filipedeoli]

Lead-Acid - 12V and 1,3 Amp/h
Ni-Cd - 12V and 1 Amp/h

Voltage and current of charging ???
Supply from 120Vac or 230Vac or ???

 

[kak111]

Lead acid battery charger circuit
Lead Acid Battery Charger Circuit

Intelligent NiCd/NiMH Battery Charger
NiCd Battery Charger

Set charging voltage to 13.8 ... 14.4 V for lead acid battery (6 Cells)
read this


Set charging current for Ni-Cd battery
(Charging voltage 1.6...1.65V / Cell ) (12V Ni-Cd = 10 Cells )
read these
How to charge nickel cadmium batteries
Nickel-Cadmium

 

[prashkd85]

I'd suggest you first understand the composition of the two mentioned type of battries and the kind of charging cycle n time you need to provide. Making a charger ckt, specially for Lead Acid, is not that difficult but its calibration is gonna be a bit tricky.

 

[Raza]

Charging Information For Lead Acid Batteries

and

How to charge nickel cadmium batteries
Nickel-Cadmium

Has already been quoted to him by kak111.