•  
  •  

Simple Car Battery Charger

Naveen P N

This very simple circuit uses a transformer ,two diodes , a capacitor and an ammeter.
To charge a battery just connect the + and – terminals of the circuit to the corresponding terminals of the battery.
When the battery is not charged, the ammeter reading shows 1-3 amps.
When the battery is fully charged the ammeter reads Zero or nearly zero, after which the battery should be removed from the
charger.
The circuit is a full wave rectifier using 2 diodes for rectification. The capacitor is used for smoothing.
I think the circuit works fine without the capacitor since the battery itself acts a BIG capacitor. But when you are using the
circuit to supply 12V (as a battery eliminator) the capacitor needs to be present.
Care should be taken NOT to reverse the + and – terminals while connecting it to the battery.

If there are any problems please contact webmaster@electronic-circuits-diagrams.com

Please share & like

SUNX FX-102-CC2 Long Sensing Range Digital Fiber Optic Amplifier - NPN
$56.96 SUNX FX-102-CC2 Long Sensing Range Digital Fiber Optic Amplifier - NPN picture
BANNER Q45BB6RQ5 PHOTOELECTRIC SENSOR FIBER-OPTIC AMPLIFIER, INFARED LED, 10-30V
$38.5 BANNER Q45BB6RQ5 PHOTOELECTRIC SENSOR FIBER-OPTIC AMPLIFIER, INFARED LED, 10-30V picture
Blonder Tongue Bida Broadband Distribution Amplifier Bida 450-50
$18.47 Blonder Tongue Bida Broadband Distribution Amplifier Bida 450-50 picture
Yaskawa Electric AC Servo Motor SGMGH-09ACA61
$29.0 Yaskawa Electric AC Servo Motor SGMGH-09ACA61 picture
IH International Farmall 856 Torque Amplifier Handle Support Assembly Tractor
$45.5  IH International Farmall 856 Torque Amplifier Handle Support Assembly Tractor picture
  • Víctor Fernández

    Nice project, but i think the capacitor is to big and the diodes to small; if you pretend to drive 3-5 amp to charge a battery 1n4007 is not enough, i will say 1n5400 (3 amp diode) and the cap 100 or 200 uf to produce a pulse current