Inductive power supply system with battery type detection

摘要

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.

主权项

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; andan 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.