Power flow controller synchronization
First Claim
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1. An apparatus for receiving power in a wireless power transfer system, comprising:
- a power receiving element;
a tuning and current doubler circuit operably coupled to the power receiving element wherein the tuning and current doubler circuit includes at least one capacitor, at least two diodes and at least two inductors;
a power flow controller circuit including a first transistor device and a second transistor device each operably coupled to the tuning and current doubler circuit; and
a controller operably coupled to the power receiving element and the power flow controller circuit and configured to detect a signal in the power receiving element and to synchronize the power flow controller circuit based on the signal.
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Abstract
Techniques for wireless power transfer are disclosed. An example of an apparatus for receiving power in a wireless power transfer system includes a power receiving element, a tuning and current doubler circuit operably coupled to the power receiving element, a power flow controller circuit operably coupled to the tuning and current doubler circuit, and a controller operable coupled to the power receiving element and the power flow controller circuit and configured to detect a signal in the power receiving element and to synchronize the power flow controller circuit based on the signal.
15 Citations
27 Claims
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1. An apparatus for receiving power in a wireless power transfer system, comprising:
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a power receiving element; a tuning and current doubler circuit operably coupled to the power receiving element wherein the tuning and current doubler circuit includes at least one capacitor, at least two diodes and at least two inductors; a power flow controller circuit including a first transistor device and a second transistor device each operably coupled to the tuning and current doubler circuit; and a controller operably coupled to the power receiving element and the power flow controller circuit and configured to detect a signal in the power receiving element and to synchronize the power flow controller circuit based on the signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method of controlling a receiver in a wireless power transfer system, comprising:
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detecting a signal in a power receiving element, wherein the signal is at an operating frequency; determining a synchronization point in the signal; activating a first transistor device and a second transistor device in a power flow controller based on the synchronization point and the operating frequency; and wherein a tuning and current doubler circuit is operably coupled to the power receiving element and includes at least one capacitor, at least two diodes and at least two inductors. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
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20. A non-transitory processor-readable storage medium comprising instructions for controlling a receiver in a wireless power transfer, comprising:
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code for detecting a signal in a power receiving element, wherein the signal is at an operating frequency; code for determining a synchronization point in the signal; code for activating a first transistor device and a second transistor device in a power flow controller based on the synchronization point and the operating frequency, and wherein a tuning and current doubler circuit is operably coupled to the power receiving element and includes at least one capacitor, at least two diodes and at least two inductors.
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21. An apparatus for receiving power in a wireless power transfer, comprising:
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a power receiving means for receiving an electromagnetic field; a tuning and current doubler means for increasing output current operably coupled to the power receiving means, wherein the tuning and current doubler means includes at least one capacitor, at least two diodes and at least two inductors; a power flow controller means for controlling current flows in the apparatus, the power flow controller means including a first transistor device and a second transistor device each operably coupled to the tuning and current doubler means; and a controller means operably coupled to the power receiving means and the power flow controller means and configured for detecting a signal in the power receiving means and for synchronizing the power flow controller means based on the signal. - View Dependent Claims (22, 23, 24, 25, 26, 27)
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Specification