Packaging and Details of a Wireless Power device
First Claim
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1. A wireless power transmitter, comprisinga magnetically resonant antenna;
- a transmit system that creates a driving signal at a frequency that is substantially resonant with said magnetically resonant antenna;
a current sensor, sensing an amount of current that flows through said magnetically resonant antenna and creates a current sense signal indicative thereof; and
wherein said signal indicative of current is used by said transmit system to change said driving signal based on a characteristic of transmitting by said magnetically resonant antenna.
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Abstract
A wireless power system includes a power source, power receiver, and components thereof. A current sensor senses the amount of current through the antenna. That amount of current is then used to adjust characteristics of the transmitting or receiving.
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Citations
25 Claims
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1. A wireless power transmitter, comprising
a magnetically resonant antenna; -
a transmit system that creates a driving signal at a frequency that is substantially resonant with said magnetically resonant antenna; a current sensor, sensing an amount of current that flows through said magnetically resonant antenna and creates a current sense signal indicative thereof; and wherein said signal indicative of current is used by said transmit system to change said driving signal based on a characteristic of transmitting by said magnetically resonant antenna. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A wireless power transmitter, comprising
a magnetically resonant antenna; -
a receive system that receives a signal at a frequency that is substantially resonant with said magnetically resonant antenna, and creates electrical power from said signal; a current sensor, sensing an amount of current that flows through said magnetically resonant antenna and creates a signal indicative thereof; and wherein said signal indicative of current is used by said receive system to change a characteristic of receiving based on said signal from said current sensor. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A method, comprising
using an antenna which is tuned to have a magnetic resonance at a first frequency; -
using electrical circuitry connected to said antenna; sensing an amount of current that flows through said magnetically resonant antenna and creates a current sense signal indicative thereof; and said electrical circuitry changing a way that it interfaces with said antenna, based on said current sense signal, wherein said antenna is used for wireless power interfacing, and said current sense changes the characteristics of said wireless power interfacing based on a sensed current, where said changing changes an amount of transmitted power between a source and a recipient. - View Dependent Claims (21, 22, 23, 24, 25)
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Specification