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US 11,108,272 B2Granted
Electronic apparatus
AssigneeSamsung Electronics Co., Ltd.
InventorsMoonyoung Kim, Jeongil Kang, Shinwook Choi
Life of this patent
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Abstract
An electronic apparatus including a power transfer module configured to wirelessly transfer power to a power receiver and a controller configured to control the power receiver to transfer power based on voltage applied from the power transfer module to the power receiver.
Claims15
An electronic apparatus comprising:
- a power transfer module configured to be attached to a main body of the electronic apparatus, and configured to receive alternating current (AC) power and wirelessly transfer power to the electronic apparatus, wherein the power transfer module comprises a primary resonator configured to operate at an operation frequency with a preset range corresponding to a resonant frequency;
- a power receiver comprising a secondary resonator configured to resonate with the primary resonator and wirelessly receive power from the power transfer module;
- and
- a controller configured to control the power receiver to supply power to an electronic component provided in the main body of the electronic apparatus based on voltage being greater than or equal to a preset level applied from the power transfer module to the power receiver and control the power receiver not to supply power to the electronic component based on voltage being less than the preset level applied from the power transfer module to the power receiver,
- wherein the preset range of the operation frequency corresponds to a spread frequency band based on a spread spectrum of the resonant frequency.
2 more elements
An electronic apparatus comprising:
- a power transfer module comprising a primary LLC converter circuit, the primary LLC converter circuit comprising:
- an inverter configured to convert direct current (DC) power to alternating current (AC) power;
- and
- a primary LLC resonant converter configured to resonate based on a switching frequency of the inverter;
- a power receiver comprising a secondary LLC converter circuit, the secondary LLC converter circuit comprising:
- a secondary LLC resonant converter configured to resonate with the primary LLC resonant converter and wirelessly receive the AC power from the primary LLC resonant converter;
- and
- a rectifying unit configured to convert the AC power to DC power provided to an electronic component provided in a main body of the electronic apparatus;
- and
- a controller configured to control the switching frequency of the inverter to operate at a resonant frequency of the primary LLC resonant converter, control the power receiver to supply power to the electronic component based on voltage being greater than or equal to a preset level applied from the power transfer module to the power receiver, and control the power receiver not to supply power to the electronic component based on voltage being less than the preset level applied from the power transfer module to the power receiver,
- wherein the primary LLC resonant converter is configured to operate at an operation frequency with a preset range corresponding to a resonant frequency, wherein the preset range of the operation frequency corresponding to a spread frequency band based on a spread spectrum of the resonant frequency.
8 more elements
Dependencies are inferred from the claim text.