This 12v lead acid battery charger circuit based Regulator IC LM723C. The lead acid battery charger circuit can provide 12 V output voltage at 0.42 A maximum current. This battery charger circuit is design for 12 V Lead Acid battery.
Contsant voltage current limited charger Parts list :
T1 : Transformer, do 13V (rms), l-3A (rms)
D1,D2 : 100V 1A Diode
Cl : 50V, 470µF Electrolytic Condenser
TRI : MJ2840 10A 60V 150W (Motorola)
IC : LM723C (National Semiconductor)
Al : 4.7 Ohm 1/2W 3P
A2 : 5.1 K Ohm 1 /4W
R3 : 3.9K Ohm 1 /4W
R4 : 7.SK Ohm 1/4W
A5 : 8.2K Ohm 1/4W
VR : 2K Ohm
C2 : 50V 1000pF
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