Automatic Battery Charger

AIM 

To set up and study the performance of automatic battery charger.

COMPONENTS AND EQUIPMENTS REQUIRED

• SCR TRANSFORMER, RESISTOR, BATTERY, DIODE, ZENER DIODE, CONNECTING WIRE, BREAD BOARD, MULTIMETER

THEORY:

 Diode D1 and D2 for a full wave rectifier, initially due to battery voltage and low gate current SCR2 will be OFF. SCR1 turns ON by the forward output and battery get charged. When the battery voltage is sufficiently high SCR2 get sufficient current and it will turn ON. The SCR1 turns OFF and stop the battery charging.

PROCEDURE

• Check the all given or collected component using multimeter. 
• Assemble them on breadboard as shown in figure. 
• Check the initial voltage of battery and charge the battery.
• Check the final voltage of battery after charging of battery Verify the working of automatic battery charger.

CIRCUIT DIAGRAM

RESULT:

Studied and constructed an automatic battery charger and observed its working. 

• Initial voltage of battery = 
• Final voltage of battery=