WIRELESS BATTERY CHARGING DEVICE, METHOD AND SYSTEM
First Claim
1. A battery charging system, comprising:
- a transmitter that transmits a radio frequency (RF) wireless power signal at an RFID frequency;
a battery charging device in wireless communication with the transmitter and including,a receiver adapted to receive the RF wireless power signal; and
a battery receiving portion including a positive and negative terminal adapted to electrically communicate a charge from the RFID frequency to the battery to charge the battery.
1 Assignment
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Accused Products
Abstract
A battery charging device, method and system are disclosed for wirelessly charging a battery. A transmitter can transmit an RF wireless power signal to a battery charging device, and a receiver within the battery charging device can receive the RF wireless power signal. The battery charging device can thereafter transfer the received RF wireless power signal to a battery receiving portion to charge the battery. In an embodiment, the RF wireless power signal is transferred at a frequency of about 13.56 MHz to overcome wave shadowing. A battery recharging feedback control circuit can optionally be applied in combination with the battery charging device and can monitor a power quantity of the RF wireless power signal.
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Citations
20 Claims
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1. A battery charging system, comprising:
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a transmitter that transmits a radio frequency (RF) wireless power signal at an RFID frequency; a battery charging device in wireless communication with the transmitter and including, a receiver adapted to receive the RF wireless power signal; and a battery receiving portion including a positive and negative terminal adapted to electrically communicate a charge from the RFID frequency to the battery to charge the battery. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A battery charging method comprising:
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receiving an RF wireless signal transmitted at a frequency of about 13.56 MHz; transmitting the RF wireless power signal to a battery receiving portion; and charging a battery positioned within the battery receiving portion with the RF wireless signal. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A battery charging feedback system comprising:
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a main transceiver adapted to transmit an RF wireless power signal, the main transceiver further comprising a power adjusting circuit adapted to adjust a power quantity of an RF wireless power signal to be transmitted; and a secondary transceiver adapted to receive the RF wireless power signal and determine the power quantity of the RF wireless power signal; and transmit the determined power quantity to the main transceiver. - View Dependent Claims (14, 15, 16, 17, 18)
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19. A battery charging device for charging a battery in a battery pack, comprising:
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a Radio Frequency (RF) receiving antenna integrated in said battery pack; a rectifier circuit integrated in said battery pack and configured for rectifying a signal received from said RF receiving antenna and providing a rectified signal; and a battery connecting portion integrated in said battery pack and including a positive and negative terminal adapted to electrically communicate power from said rectified signal to said battery to charge said battery. - View Dependent Claims (20)
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Specification