Methods and systems for contactless battery discharging
First Claim
1. A contactless battery discharging system, comprising:
- a smart battery system, comprising;
a rechargeable battery;
a wireless communication interface;
a controller connected to the wireless communication interface, the controller comprising a fuel gauge IC, the fuel-gauge IC detecting a need for reconditioning and discharging the rechargeable battery;
a magnetic resonance circuit; and
an oscillatory amplifier circuit connected to the rechargeable battery and the magnetic-resonance circuit;
the controller sending a reconditioning request from the wireless communication interface upon the fuel gauge detecting the need for reconditioning and discharging the rechargeable battery;
a contactless power-transfer system, comprising;
a wireless communication interface;
a controller connected to the wireless communication interface;
a magnetic resonance circuit;
a power conditioning circuit, the power-conditioning circuit connected to the magnetic-resonance circuit; and
a load element coupled to the power-conditioning circuit;
and wherein;
the wireless communication interface of the contactless power-transfer system receiving the reconditioning request, and the contactless power-transfer system responsively transmitting a battery-discharge command instructing the smart-battery system to generate an oscillating magnetic field from the magnetic-resonance circuit of the smart battery system;
the magnetic resonance circuit of the contactless power transfer system receiving the generated oscillating magnetic field and responsively outputting a corresponding power signal;
the power-conditioning circuit of the contactless power-transfer system receiving the power signal, rectifying the received power signal, and outputting the rectified power signal; and
the load element connected to the power-conditioning circuit receiving and dissipating the rectified power signal.
1 Assignment
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Accused Products
Abstract
Disclosed herein are methods and systems for contactless battery discharging. One embodiment takes the form of a contactless power-transfer system that includes a wireless-communication interface, a controller connected to the wireless-communication interface, a magnetic-resonance circuit, a power-conditioning circuit connected to the magnetic-resonance circuit, and a load element connected to the power-conditioning circuit. The controller is configured to determine that a smart-battery system is in a discharge-needed state and responsively transmit, via the wireless-communication interface, a battery-discharge command instructing the smart-battery system to generate an oscillating magnetic field. The magnetic-resonance circuit is configured to couple with the generated oscillating magnetic field and responsively output a corresponding power signal. The power-conditioning circuit is configured to receive the power signal from the magnetic-resonance circuit, rectify the received power signal, and output the rectified power signal. The load element is configured to receive the rectified power signal from the power-conditioning circuit.
12 Citations
10 Claims
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1. A contactless battery discharging system, comprising:
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a smart battery system, comprising; a rechargeable battery; a wireless communication interface; a controller connected to the wireless communication interface, the controller comprising a fuel gauge IC, the fuel-gauge IC detecting a need for reconditioning and discharging the rechargeable battery; a magnetic resonance circuit; and an oscillatory amplifier circuit connected to the rechargeable battery and the magnetic-resonance circuit; the controller sending a reconditioning request from the wireless communication interface upon the fuel gauge detecting the need for reconditioning and discharging the rechargeable battery; a contactless power-transfer system, comprising; a wireless communication interface; a controller connected to the wireless communication interface; a magnetic resonance circuit; a power conditioning circuit, the power-conditioning circuit connected to the magnetic-resonance circuit; and a load element coupled to the power-conditioning circuit; and wherein; the wireless communication interface of the contactless power-transfer system receiving the reconditioning request, and the contactless power-transfer system responsively transmitting a battery-discharge command instructing the smart-battery system to generate an oscillating magnetic field from the magnetic-resonance circuit of the smart battery system; the magnetic resonance circuit of the contactless power transfer system receiving the generated oscillating magnetic field and responsively outputting a corresponding power signal; the power-conditioning circuit of the contactless power-transfer system receiving the power signal, rectifying the received power signal, and outputting the rectified power signal; and the load element connected to the power-conditioning circuit receiving and dissipating the rectified power signal. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A contactless battery discharging system, comprising:
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a smart battery comprising a controller and fuel gauge for detecting a need for reconditioning and discharging of the smart battery and generating a reconditioning request, the smart battery further comprising an oscillatory amplifier circuit and a magnetic-resonance circuit; a power transfer system having a controller for receiving the reconditioning request and enabling a wireless transfer of power from the smart battery to the power transfer system by sending a battery-discharge command instructing the smart battery to generate a power signal via the oscillatory amplifier circuit, the smart battery wirelessly dissipating the power signal via the magnetic resonance circuit to a power conditioning circuit and load element of the power transfer system; and a wireless-communication interface for transferring the reconditioning request from the smart battery to the contactless battery discharging system and for sending the battery discharge command from the contactless battery discharging system to the smart battery. - View Dependent Claims (9, 10)
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Specification