Quick & Easy Lithium Ion Battery Charger

Design

• Simple design using readily available components.

• Easy to build and set up.

• A small and compact design.

Circuit description:

    A simple to build, requiring no special test equipment or onerous procedures to setup...

    Based around the LM317 3 pin linear adjustable voltage regulator and the addition of a few extra components, providing a current limited constant voltage source with charge complete indication.

        Quick & Easy Lithium Ion Battery Charger schematic:

        Quick & Easy Lithium Ion Battery Charger PCB component placement / layout:

          Quick & Easy Lithium Ion Battery Charger PCB bottom trace:

        Quick & Easy Lithium Ion Battery Charger parts listing:

Original Files:

    Further to the details of the pages above - the original CAD files created using EAGLE PCB Design software are included below, along with associated PDF files of both schematics and PCB layouts suitable for printing directly.

    To use the original CAD files, they must be opened with EAGLE. Visit the CADsoft web site for more details, the software (including a freeware version), part libraries, tutorials, for EAGLE are available.

    Quick & Easy Lithium Ion Battery Charger schematic PDF

    Quick & Easy Lithium Ion Battery Charger PCB component layout PDF

    Quick & Easy Lithium Ion Battery Charger PCB bottom track layout PDF

    Quick & Easy Lithium Ion Battery Charger EAGLE schematic

    Quick & Easy Lithium Ion Battery Charger EAGLE board

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