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This invention describes a smart battery charger for various types of batteries, including those in electric vehicles. It operates by converting an input power source into a precisely controlled alternating current using a variable frequency generator and a digital controller, then rectifying it to charge the battery. This design aims to create a smaller, lighter, and more efficient charger that automatically adjusts its output for optimal battery health.
Why it matters: The filing predates the widespread adoption of electric vehicles and significant advancements in power electronics and digital control. These developments now make compact, efficient, and intelligent variable-frequency chargers, as described, more practical and cost-effective for modern EV charging infrastructure.
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