Wireless charging magnetic parameter determination
First Claim
1. A wireless-power receiver system comprising:
- a power reception circuit coupled to an electrical load and configured to receive power wirelessly from a power transmit circuit to power the electrical load;
a memory; and
a processor, communicatively coupled to the memory and to the power reception circuit, configured to;
obtain a first frequency indication of a first resonant frequency of the power reception circuit corresponding to a combination of the power transmit circuit and the power reception circuit being in a first state having a first combined circuit configuration;
obtain a second frequency indication of a second resonant frequency of the power reception circuit corresponding to the combination of the power transmit circuit and the power reception circuit being in a second state having a second combined circuit configuration, the first combined circuit configuration differing from the second combined circuit configuration by at least one of component content or a value of at least one component; and
determine a value of a magnetic characteristic of the wireless-power receiver system using the first frequency indication and the second frequency indication.
2 Assignments
0 Petitions
Accused Products
Abstract
A method of determining a value of a magnetic characteristic of a wireless-power receiver system includes: obtaining a first frequency indication of a first resonant frequency of a power reception circuit of the wireless-power receiver system corresponding to a power transmit circuit and the power reception circuit being in a first state having a first combined circuit configuration; obtaining a second frequency indication of a second resonant frequency of the power reception circuit corresponding to the combination of the power transmit circuit and the power reception circuit being in a second state having a second combined circuit configuration, the first combined circuit configuration differing from the second combined circuit configuration by at least one of component content or a value of at least one component; and using the first frequency indication and the second frequency indication to determine the value of the magnetic characteristic of the wireless-power receiver system.
5 Citations
30 Claims
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1. A wireless-power receiver system comprising:
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a power reception circuit coupled to an electrical load and configured to receive power wirelessly from a power transmit circuit to power the electrical load; a memory; and a processor, communicatively coupled to the memory and to the power reception circuit, configured to; obtain a first frequency indication of a first resonant frequency of the power reception circuit corresponding to a combination of the power transmit circuit and the power reception circuit being in a first state having a first combined circuit configuration; obtain a second frequency indication of a second resonant frequency of the power reception circuit corresponding to the combination of the power transmit circuit and the power reception circuit being in a second state having a second combined circuit configuration, the first combined circuit configuration differing from the second combined circuit configuration by at least one of component content or a value of at least one component; and determine a value of a magnetic characteristic of the wireless-power receiver system using the first frequency indication and the second frequency indication. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of determining a value of a magnetic characteristic of a wireless-power receiver system, the method comprising:
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obtaining a first frequency indication of a first resonant frequency, the first resonant frequency being of a power reception circuit of the wireless-power receiver system and corresponding to a combination of a power transmit circuit and the power reception circuit being in a first state having a first combined circuit configuration; obtaining a second frequency indication of a second resonant frequency of the power reception circuit corresponding to the combination of the power transmit circuit and the power reception circuit being in a second state having a second combined circuit configuration, the first combined circuit configuration differing from the second combined circuit configuration by at least one of component content or a value of at least one component; and using the first frequency indication and the second frequency indication to determine the value of the magnetic characteristic of the wireless-power receiver system. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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20. A wireless-power receiver system comprising:
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an electrical load; power reception means for receiving power wirelessly from a power transmit circuit and for providing power to the electrical load; first determining means, communicatively coupled to the power reception means, for determining; a first frequency indication of a first resonant frequency of the power reception means corresponding to a combination of the power transmit circuit and the power reception means being in a first state having a first combined circuit configuration; and a second frequency indication of a second resonant frequency of the power reception means corresponding to the combination of the power transmit circuit and the power reception means being in a second state having a second combined circuit configuration, the first combined circuit configuration differing from the second combined circuit configuration by at least one of component content or a value of at least one component; and second determining means, communicatively coupled to the first determining means, for determining a value of a magnetic characteristic of the wireless-power receiver system using the first frequency indication and the second frequency indication. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27)
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28. A wireless-power transmitter system comprising:
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a power transmit circuit configured to transmit power wirelessly to a wireless-power receiver system; a memory; and a processor, communicatively coupled to the memory and to the power transmit circuit, configured to; obtain a first frequency indication of a first resonant frequency of a power reception circuit of the wireless-power receiver system, the first resonant frequency corresponding to a combination of the power transmit circuit and the power reception circuit being in a first state having a first combined circuit configuration; obtain a second frequency indication of a second resonant frequency of the power reception circuit corresponding to the combination of the power transmit circuit and the power reception circuit being in a second state having a second combined circuit configuration, the first combined circuit configuration differing from the second combined circuit configuration by at least one of component content or a value of at least one component; and determine a value of a magnetic characteristic of the wireless-power receiver system using the first frequency indication and the second frequency indication. - View Dependent Claims (29, 30)
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Specification