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Battery charger circuits electronic circuits design

Simple and complex battery chargers electronic circuits design projects and schematics with diagrams and description for various battery type.

Battery charger using LM317

This universal battery charger electronic project is designed using the LM317 voltage regulator and some other electronic components .
As you can see in this schematic circuit this battery charger has extreme few components , but is doing a very good job . When power is applied to the circuit the SCR1 is off, so there is no bias-current path to ground.

Circuit Diagram: 
Battery chargher using LM317 regulator circuit schematic
Electronic Circuits: 

Lithium Ion charger circuit using LM3632

This lithium Ion charger circuit is designed using the LM3632 charger controller , manufactured by National Semiconductor .

Circuit Diagram: 
Lithium Ion charger circuit design electronic project using LM3632
Electronic Circuits: 

USB car charger adapter circuit design

This USB car charger adapter project is a DC DC power converter that safely converts the 12V car battery voltage into stable 5V. This USB car charger circuit can be used to supply power from a car cigar lighter socket to a portable device that require a 5 volts . This circuit makes it possible to power/recharge any USB power-operated device, using in-dash board cigar lighter socket of your car.

Circuit Diagram: 
USB car charger adapter circuit design schematic
Electronic Circuits: 


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