Battery with integrated wireless power receiver and/or RFID
First Claim
Patent Images
1. A battery comprises:
- a positive terminal;
a negative terminal;
one or more rechargeable cells operably coupled to the positive terminal and to the negative terminal;
a voltage sensing circuit operable to determine a voltage of the one or more rechargeable cells; and
a radio frequency identification (RFID) tag that includes;
a transceiver section having a coil integrated into at least one of the positive terminal and the negative terminal, wherein the coil transceives electromagnetic signals within a given frequency band and, at direct current (DC), is a conductive element of the at least one of the positive terminal and the negative terminal;
memory for storing battery information and battery charging parameters; and
a processing module operable to;
obtain the voltage;
determine battery charging requirements based on at least one of the voltage, the battery charging information, and the battery charging parameters; and
communicate the battery charging requirements via the transceiver section.
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Accused Products
Abstract
A battery includes one or more rechargeable cells, a wireless power coil, a battery charger circuit, and may further include an RFID module. The wireless power coil is operable to generate an AC voltage from a wireless power electromagnetic field. The battery charger circuit is operable to generate a battery charge voltage from the AC voltage in accordance with a battery charge control signal and, when enabled, to charge the one or more rechargeable cells via the battery charge voltage. If the battery further includes the RFID module, it is operable to generate the battery charge control signal and communicate with a wireless power transmitter device.
45 Citations
20 Claims
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1. A battery comprises:
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a positive terminal; a negative terminal; one or more rechargeable cells operably coupled to the positive terminal and to the negative terminal; a voltage sensing circuit operable to determine a voltage of the one or more rechargeable cells; and a radio frequency identification (RFID) tag that includes; a transceiver section having a coil integrated into at least one of the positive terminal and the negative terminal, wherein the coil transceives electromagnetic signals within a given frequency band and, at direct current (DC), is a conductive element of the at least one of the positive terminal and the negative terminal; memory for storing battery information and battery charging parameters; and a processing module operable to; obtain the voltage; determine battery charging requirements based on at least one of the voltage, the battery charging information, and the battery charging parameters; and communicate the battery charging requirements via the transceiver section. - View Dependent Claims (2, 3, 4, 5)
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6. A battery comprises:
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one or more rechargeable cells; a wireless power coil operable to generate an alternating current (AC) voltage from a wireless power electromagnetic field; and a battery charger circuit operable to; generate a battery charge voltage from the AC voltage in accordance with a battery charge control signal; when enabled, charge the one or more rechargeable cells via the battery charge voltage; and wherein the battery charger circuit comprises output coupling circuitry operable to; provide the battery charge voltage to the one or more rechargeable cells; disconnect the one or more rechargeable cells from a terminal of the battery when the wireless power electromagnetic field is detected; and connect an output of the battery charger circuit to the terminal when the wireless power electromagnetic field is detected. - View Dependent Claims (7, 8, 9, 10, 11, 12)
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13. A battery circuit module comprises:
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a wireless power coil operable to generate an alternating current (AC) voltage from a wireless power electromagnetic field; a battery charger circuit operable to; generate a battery charge voltage from the AC voltage in accordance with battery charge information; and when enabled, charge the one or more rechargeable cells via the battery charge voltage; and a radio frequency identification (RFID) module operable to; communicate with a wireless power transmitter device; generate the battery charge information based on, at least in part, the communication with the wireless power transmitter device; and a processing module operable to; process detection of the wireless power electromagnetic field; process determining a voltage of a battery; enable the charging of the battery based on the voltage and the detection of the wireless power electromagnetic field; process a baseband portion of the communication with the wireless power transmitter device; and generate the battery charge information. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification