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US 10,320,236 B2Granted
Wireless power transmission apparatus and method of controlling the same
AssigneeSamsung Electro-Mechanics Co., Ltd.
InventorsSeung Won Park, Sang Ho Cho, Eun Young Shin, Jae Suk Sung, Chang Ik Kim
Life of this patent
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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.
Claims15
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, and
- in a case in which the operating frequency is greater than the upper limit, decrease the resonant frequency of the resonator.
5 more elements
A method of controlling a power transmission apparatus, the method comprising:
- 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.
3 more elements
A power transmission apparatus, comprising:
- 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.
1 more element
Dependencies are inferred from the claim text.