SYSTEM AND METHOD FOR ALIGNMENT AND COMPATIBILITY DETECTION FOR A WIRELESS POWER TRANSFER SYSTEM
First Claim
1. An apparatus for receiving charging power wirelessly from a charging transmitter having a transmit coil, the apparatus comprising:
- a receiver communication circuit coupled to a receive coil and to a load, configured to receive information associated with at least one characteristic of the charging transmitter;
a sensor circuit configured to measure a value of a short circuit current or an open circuit voltage associated with the receive coil; and
a controller configured to;
compare the value of the short circuit current or the open circuit voltage to a threshold charging parameter, the threshold set at a level that provides charging power sufficient to charge the load; and
initiate receiving the charging power from the charging transmitter when the short circuit current or the open circuit voltage associated with the receive coil is greater than or equal to the threshold charging parameter.
2 Assignments
0 Petitions
Accused Products
Abstract
Systems, methods, and apparatuses for receiving charging power wirelessly are described herein. One implementation may include an apparatus for receiving charging power wirelessly from a charging transmitter having a transmit coil. The apparatus comprises a receiver communication circuit, coupled to a receive coil and to a load. The receiver communication circuit is configured to receive information associated with at least one characteristic of the charging transmitter. The apparatus further comprises a sensor circuit configured to measure a value of a short circuit current or an open circuit voltage associated with the receive coil. The apparatus further comprises a controller configured to compare the value of the short circuit current or the open circuit voltage to a threshold charging parameter set at a level that provides charging power sufficient to charge the load. The controller may be further configured to initiate receiving the charging power from the charging transmitter when the short circuit current or the open circuit voltage associated with the receive coil is greater than or equal to the threshold charging parameter.
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Citations
30 Claims
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1. An apparatus for receiving charging power wirelessly from a charging transmitter having a transmit coil, the apparatus comprising:
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a receiver communication circuit coupled to a receive coil and to a load, configured to receive information associated with at least one characteristic of the charging transmitter; a sensor circuit configured to measure a value of a short circuit current or an open circuit voltage associated with the receive coil; and a controller configured to; compare the value of the short circuit current or the open circuit voltage to a threshold charging parameter, the threshold set at a level that provides charging power sufficient to charge the load; and initiate receiving the charging power from the charging transmitter when the short circuit current or the open circuit voltage associated with the receive coil is greater than or equal to the threshold charging parameter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method of receiving charging power wirelessly, the method comprising:
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receiving information associated with at least one characteristic of a charging transmitter; measuring a value of an a short circuit current or an open circuit voltage associated with a receive coil; comparing the value of the short circuit current or the open circuit voltage to a threshold charging parameter, the threshold set at a level that provides charging power sufficient to charge a load; and initiating receiving the charging power from the charging transmitter when the short circuit current or the open circuit voltage associated with the receive coil is greater than or equal to the threshold charging parameter. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. An apparatus for receiving charging power wirelessly, the apparatus comprising:
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means for receiving information associated with at least one characteristic of a charging transmitter, the means for receiving the information being operatively connected to a load; means for measuring a value of a short circuit current or an open circuit voltage associated with the receiving means; means for comparing the value of the short circuit current or the open circuit voltage to a threshold charging parameter, the threshold set at a level that provides charging power sufficient to charge the load; and means for initiating receiving the charging power from the charging transmitter when the short circuit current or the open circuit voltage associated with the receiving means is greater than or equal to the threshold charging parameter. - View Dependent Claims (23, 24, 25, 26, 28, 29, 30)
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27. An apparatus for transmitting charging power wirelessly to a receive coil of a receiver, the apparatus comprising:
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a transmit circuit coupled to a transmit coil; a sensor circuit coupled to the transmit circuit, the sensor circuit configured to measure a value of at least one characteristic of the transmit circuit; and a communication circuit configured to transmit an indication of the value of the at least one characteristic of the transmit circuit to the receiver, the indication causing the receiver to determine a threshold charging parameter based on the indication and causing the receiver to initiate receiving the charging power when a short circuit current or an open circuit voltage associated with the receive coil is greater than or equal to the threshold charging parameter.
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Specification