Inductive power supply system with battery type detection
First Claim
1. An inductive power supply system capable of charging a battery comprising:
- an inductive power supply including a primary circuit and a primary for wirelessly transferring power;
a remote device separable from said inductive power supply, said remote device including a secondary for wirelessly receiving power from said inductive power supply and a secondary circuit that includes a battery characteristic detection system for detecting a characteristic of said battery indicative of said battery type, said characteristic of said battery including at least one of a battery voltage characteristic, a battery current characteristic, and a battery temperature characteristic;
a memory located in said remote device, said memory including a plurality of battery charging algorithms;
a controller adapted to communicate with said memory, said controller located in said remote device, wherein said controller is programmed to select a battery charging algorithm from said plurality of battery charging algorithms in said memory based at least in part on said detected battery characteristic indicative of said battery type; and
a communication system for wireless communication between said remote device and said inductive power supply, said communication system including;
a remote device communication system for wirelessly communicating with said inductive power supply including at least one of a signal resistor for communicating using said secondary and a wireless transmitter; and
an inductive power supply communication system for wirelessly communicating with said remote device including at least one of a current sensor for communicating using said primary and a wireless receiver.
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Accused Products
Abstract
An inductive power supply system to wirelessly charge a remote device based on detected battery characteristics. The system includes an inductive power supply with a primary coil capable of inductively providing power to a secondary coil in a remote device. The inductive power supply and remote device include communication means for wirelessly communicating. The system further includes a remote device, having a battery with detectable battery characteristics. In operation, the remote device is capable of detecting the battery characteristics by applying a qualification charge to the battery. The inductive power supply system is capable of identifying the battery installed in the remote device by analyzing the detected battery characteristics. The inductive power supply system selects an appropriate charging algorithm based on the analyzed characteristics.
26 Citations
34 Claims
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1. An inductive power supply system capable of charging a battery comprising:
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an inductive power supply including a primary circuit and a primary for wirelessly transferring power; a remote device separable from said inductive power supply, said remote device including a secondary for wirelessly receiving power from said inductive power supply and a secondary circuit that includes a battery characteristic detection system for detecting a characteristic of said battery indicative of said battery type, said characteristic of said battery including at least one of a battery voltage characteristic, a battery current characteristic, and a battery temperature characteristic; a memory located in said remote device, said memory including a plurality of battery charging algorithms; a controller adapted to communicate with said memory, said controller located in said remote device, wherein said controller is programmed to select a battery charging algorithm from said plurality of battery charging algorithms in said memory based at least in part on said detected battery characteristic indicative of said battery type; and a communication system for wireless communication between said remote device and said inductive power supply, said communication system including; a remote device communication system for wirelessly communicating with said inductive power supply including at least one of a signal resistor for communicating using said secondary and a wireless transmitter; and an inductive power supply communication system for wirelessly communicating with said remote device including at least one of a current sensor for communicating using said primary and a wireless receiver. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A remote device separable from an inductive power supply and capable of having a battery with a battery type, said remote device comprising:
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a secondary for wirelessly receiving power from said inductive power supply; a battery characteristic detection system for detecting a characteristic of said battery indicative of said battery type of said battery, said characteristic of said battery including at least one of a battery voltage characteristic, a battery current characteristic, and a battery temperature characteristic; a controller adapted to communicate with a memory including a plurality of battery charging algorithms, said controller programmed to at least one of; 1) select a battery charging algorithm from said plurality of battery charging algorithms in said memory based at least in part on said detected battery characteristic indicative of said battery type detected by said battery characteristic detection system; 2) control charging of said battery according to said selected battery charging algorithm; and wherein said controller is programmed to select said battery charging algorithm from said plurality of battery algorithms based on a comparison between said detected battery characteristic and a threshold. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. A method for operating a remote device adapted to function with a plurality of different types of batteries, said method comprising the steps of:
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receiving wireless power from an inductive power supply; detecting a characteristic of a battery installed in said remote device, wherein said characteristic of said battery is indicative of a battery type, said characteristic of said battery including at least one of a battery voltage characteristic, a battery current characteristic, and a battery temperature characteristic; selecting a battery charging algorithm based at least in part on said detected battery characteristic indicative of said battery type, wherein said selecting said battery charging algorithm includes comparing said detected battery characteristic to a first threshold; and charging said battery according to said selected battery charging algorithm. - View Dependent Claims (27, 28, 29, 30, 31, 32, 33, 34)
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Specification