12 Volt Battery Charger Circuit Diagram
Q1 and ic requires a good heatsink.
12 volt battery charger circuit diagram. You can use this circuit to charge 12v sla battery or 12v gel cell battery and so on. This circuit is designed to provide charging current upto 3 amps and this circuit don t have reverse polarity protection or over. It gives 12 volt and 5 amps current for quick charging of the battery.
One 555 timer ic is used for detecting the voltage level and relay is used to disconnect the ac input. Simple 12 volt battery charger circuit diagram designed by using few easily available components and this circuit is suitable for different types of batteries needs 12 volt. The circuit uses a 0 14 volt 5 ampere step down transformer and a 10 amps bridge rectifier module to convert ac to dc.
You are able to ideally take advantage of this circuit for applications such as inverters portable chargers etc. Now a days so many rechargeable batteries are coming like 1 2 v 3 7 v 4v 6v 9v 12v 24v etc you can check all types of battery charger circuit diagram at this page. After that 4a rectifier is used to rectify voltage from ac to pulsating dc.
Referring to the circuit diagram we see that the entire circuit is wired around the ic lm301 which forms the control circuit for executing the trip off. In above circuit diagram 220 volt to 24 volt step down transformer is used to step down voltage 24 volt ac. B1 12 volt battery.
This design additionally includes a twin indication system in the form of a battery charging indicator and a low battery buzzer indicator. 7808 voltage regulator is used for constant supply to the operation of the circuit to cut at a required fixed voltage. This is a simple 12v battery charger circuit with indicator circuit is a smart charger circuit.
Charger s input voltages are 20 volt ac. Select wattage on your choice. If the battery is partially discharged full charge will be attained in one hour.
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