Universal battery charger system and method
First Claim
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.
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Accused Products
Abstract
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.
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Citations
19 Claims
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1. A universal battery charger for a battery-powered device, the device having a charging port and an RFID tag, the charger comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A battery charging system for a battery-powered device, the system comprising:
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a) a first device having i) a first battery, ii) a first battery charging port, and iii) a first RFID tag with first RFID tag information; and b) a charging base having i) a power converter; ii) a first voltage-and-current selector connected to the power converter; iii) a first charging cord terminating in a first charging plug and a first RFID antenna, the first charging cord receiving a first charge output from the first voltage-and-current selector; and iv) a processor receiving the first RFID tag information from the first RFID tag through the first RFID antenna and selecting a first voltage and current to be output by the first charging plug to charge the first battery through the first charging port based on the first RFID tag information. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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17. A method of charging a battery, the method comprising:
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a) inserting a charging plug, located on a first end of a charging cord, into a port on a device powered by a battery; b) reading RFID information from an RFID tag on the device using an RFID antenna located proximal to the first end of the charging cord; c) selecting a voltage and current to be output by the charging plug based on the RFID information; and d) supplying the voltage and current to the charging plug to charge the device battery. - View Dependent Claims (18, 19)
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Specification