UNIVERSAL BATTERY CHARGER SYSTEM AND METHOD

摘要

A system and method for a universal battery charger is presented. An RFID tag on a battery-powered device communicates battery information to the charger to allow the charger to optimally charge the battery. The battery charger has a charging cord with a charge plug at an end of the cord to connect the charging cord to a port on a device. The charging cord contains an RFID antenna near the end of the cord. The RFID antenna has a limited reading range. When the charge plug is inserted into a charging port on a battery-powered device, an RFID reader uses the RFID antenna to read the information stored on the RFID tag. Based on the RFID tag information, a charging selector selects a current and voltage to be output to charge the device through the device port.

主权项

1. A universal battery charger for a battery-powered device, the device having a charging port and an RFID tag, the charger comprising:
a) a power converter; b) a first charging selector connected to the power converter, the first charging selector regulating a charging output; c) a first charging cord having a first charging plug at an end of the first charging cord; d) a first RFID antenna at the end of the first charging cord; and e) a processor receiving first RFID tag information from the first RFID antenna and selecting, based on the first RFID tag information, a first charging output to be provided by the first charging selector to the first charging plug.