Wireless power systems having interleaved rectifiers
First Claim
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1. A wireless power receiver comprising:
- a receiver resonator coupled to an impedance matching network, the impedance matching network having a first node and a second node;
coupled to the first node, a first branch having a first positive reactance and a second branch having a first negative reactance, wherein an absolute value of the first positive reactance is different from an absolute value of the first negative reactance; and
coupled to the second node, a third branch having a component with a second positive reactance and a fourth branch having a second negative reactance, wherein an absolute value of the second positive reactance is different from an absolute value of the second negative reactance;
a first rectifier having a first rectifier input coupled to the first branch;
a second rectifier having a second rectifier input coupled to the second branch;
a third rectifier having a third rectifier input coupled to the third branch; and
a fourth rectifier having a fourth rectifier input coupled to the fourth branch.
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Abstract
A wireless power receiver is coupled to an impedance matching network, the impedance matching network having a first node and a second node. Coupled to the first node is a first branch having a first positive reactance and a second branch having a first negative reactance, wherein an absolute value of the first positive reactance is different from an absolute value of the first negative reactance, and coupled to the second node is a third branch having a second positive reactance and a fourth branch having a second negative reactance, wherein an absolute value of the second positive reactance is different from an absolute value of the second negative reactance.
30 Citations
21 Claims
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1. A wireless power receiver comprising:
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a receiver resonator coupled to an impedance matching network, the impedance matching network having a first node and a second node; coupled to the first node, a first branch having a first positive reactance and a second branch having a first negative reactance, wherein an absolute value of the first positive reactance is different from an absolute value of the first negative reactance; and coupled to the second node, a third branch having a component with a second positive reactance and a fourth branch having a second negative reactance, wherein an absolute value of the second positive reactance is different from an absolute value of the second negative reactance; a first rectifier having a first rectifier input coupled to the first branch; a second rectifier having a second rectifier input coupled to the second branch; a third rectifier having a third rectifier input coupled to the third branch; and a fourth rectifier having a fourth rectifier input coupled to the fourth branch. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 21)
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20. A vehicle charging system comprising:
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a wireless power receiver comprising; a receiver resonator coupled to an impedance matching network, the impedance matching network having a first node and a second node; coupled to the first node, a first branch having a component with a first positive reactance and a second branch comprising a first negative reactance, wherein an absolute value of the first positive reactance is different from an absolute value of the first negative reactance; and coupled to the second node, a third branch having a component with a second positive reactance and a fourth branch having a second negative reactance, an absolute value of the second positive reactance is different from an absolute value of the second negative reactance; a first rectifier having a first rectifier input coupled to the first branch; a second rectifier having a second rectifier input coupled to the second branch; and a vehicle battery coupled to a first output node and a second output node, the first output node formed from an output of the first rectifier and an output of the third rectifier and the second output node is formed from an output of the second rectifier and an output of the fourth rectifier.
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Specification