Constant Voltage Current Limited Charger

12V lead acid battery charger

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

Power supply is an electronic device that supplies electric energy to an electrical load. The primary function of a power supply is to convert one form of electrical energy to another and, as a result, power supplies are sometimes referred to as electric power converters. Some power supplies are discrete, stand-alone devices, whereas others are built into larger devices along with their loads. Examples of the latter include power supplies found in desktop computers and consumer electronics devices.


Tags: 12V lead acid battery charger 12v lead acid battery charger circuit charging lead acid batteries lead acid battery charger

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