Wireless power transmission apparatus and method of controlling the same
First Claim
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1. A power transmission apparatus, comprising:
- a resonator configured to magnetically couple to a power reception apparatus;
an inverter configured to operate the resonator; and
a resonant frequency controller configured to;
detect an operating frequency of the inverter,determine whether the operating frequency is in a range between a lower limit and an upper limit,in a case in which the operating frequency is less than the lower limit, increase a resonant frequency of the resonator, andin a case in which the operating frequency is greater than the upper limit, decrease the resonant frequency of the resonator.
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Abstract
A wireless power transmission apparatus includes a resonator configured to be magnetically coupleable to a wireless power reception apparatus; an inverter configured to operate the resonator; and a resonant frequency controller configured to control a resonant frequency of the resonator in response to a change in operating frequency of the inverter.
2 Citations
15 Claims
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1. A power transmission apparatus, comprising:
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a resonator configured to magnetically couple to a power reception apparatus; an inverter configured to operate the resonator; and a resonant frequency controller configured to; detect an operating frequency of the inverter, determine whether the operating frequency is in a range between a lower limit and an upper limit, in a case in which the operating frequency is less than the lower limit, increase a resonant frequency of the resonator, and in a case in which the operating frequency is greater than the upper limit, decrease the resonant frequency of the resonator. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of controlling a power transmission apparatus, the method comprising:
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determining a power requirement of a power reception apparatus; controlling an operating frequency of an inverter connected to a resonator based on the power requirement, the resonator being configured to magnetically couple to the power reception apparatus; determining whether the operating frequency is in a range between a lower limit and an upper limit; in a case in which the operating frequency is less than the lower limit, increasing a resonant frequency of the resonator; and in a case in which the operating frequency is greater than the upper limit, decreasing the resonant frequency of the resonator. - View Dependent Claims (9, 10, 11)
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12. A power transmission apparatus, comprising:
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an inverter and a resonator; a power supply configured to supply power to the resonator; and a resonant frequency controller configured to control a resonant frequency of the resonator in response to a detected operational frequency of the inverter such that the resonant frequency of the resonator is increased in a case in which the detected operational frequency is less than a lower limit, and the resonant frequency of the resonator is decreased in a case in which the detected operational frequency is greater than an upper limit. - View Dependent Claims (13, 14, 15)
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Specification