Resonance type non-contact charging apparatus
First Claim
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1. A resonance type non-contact electrical power feeding apparatus comprising:
- a primary LC resonator that receives a power from a power source;
a secondary LC resonator arranged separated from and in a non-contact manner with respect to the primary LC resonator, the secondary LC resonator receiving a power from the primary LC resonator through magnetic field;
a charger that receives the power from the secondary LC resonator;
a detecting section that detects a reflected power from the primary LC resonator to the power source; and
a control section that stops the power source when the value related to reflected power detected by the detecting section reaches greater than or equal to a predetermined threshold value,wherein the primary LC resonator and the secondary LC resonator each includes an inductor and a capacitor, andwherein the value related to reflected power is a ratio of a reflected power from the primary LC resonator to the power source with respect to an output power from the power source to the primary LC resonator.
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Abstract
A resonance type non-contact charging apparatus is disclosed. A charger of the apparatus receives the high frequency power from a secondary side resonance coil of the apparatus. A power ratio detecting section of the apparatus detects the ratio of the reflected power from a primary side resonance coil to the high frequency power source with respect to the output power from the high frequency power source to the primary side resonance coil. A stop control section of the apparatus stops the high frequency power source when the ratio detected by the power ratio detecting section becomes greater than or equal to a predetermined threshold value.
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Citations
5 Claims
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1. A resonance type non-contact electrical power feeding apparatus comprising:
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a primary LC resonator that receives a power from a power source; a secondary LC resonator arranged separated from and in a non-contact manner with respect to the primary LC resonator, the secondary LC resonator receiving a power from the primary LC resonator through magnetic field; a charger that receives the power from the secondary LC resonator; a detecting section that detects a reflected power from the primary LC resonator to the power source; and a control section that stops the power source when the value related to reflected power detected by the detecting section reaches greater than or equal to a predetermined threshold value, wherein the primary LC resonator and the secondary LC resonator each includes an inductor and a capacitor, and wherein the value related to reflected power is a ratio of a reflected power from the primary LC resonator to the power source with respect to an output power from the power source to the primary LC resonator. - View Dependent Claims (2)
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3. A resonance type non-contact electric power feeding apparatus comprising:
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a primary LC resonator that receives a power from a power source; a secondary LC resonator arranged separated from and in a non-contact manner with respect to the primary LC resonator, the secondary LC resonator receiving a power from the primary LC resonator through magnetic field; a charger that receives the power from the secondary LC resonator; a detecting section that detects a reflected power from the primary LC resonator to the power source; and a control section that stops the power source when the value related to reflected power detected by the detecting section reaches greater than or equal to a predetermined threshold value, wherein the value related to reflected power is a ratio of a reflected power from the primary LC resonator to the power source with respect to an output power from the power source to the primary LC resonator. - View Dependent Claims (4, 5)
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Specification