WIRELESS POWER TRANSFER SYSTEM HAVING WIRELESS POWER TRANSFER SYSTEM-CHARGER
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Abstract
One embodiment of the present invention can provide: a wireless power transfer system which can reduce the error of the output voltage of a DC-DC transformer, and at the same time, change the magnitude of the output voltage according to the power transfer method and efficiency; and a wireless power transfer system which can variably control an output control port in a control part, and thus actively control the output of the DC-DC transformer regardless of the characteristics of the DC-DC transformer.
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Citations
35 Claims
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1-15. -15. (canceled)
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16. A wireless power transfer system-charger comprising:
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a power supply; a transformer unit for converting a voltage supplied by the power supply into a direct current (DC) voltage; and a controller for adjusting a level of the DC voltage of the transformer unit, wherein the transformer unit includes a DC-DC converter and a control unit for receiving an output voltage of the DC-DC converter and adjusting the output voltage, and wherein the control unit includes a divider for dividing the output voltage of the DC-DC converter. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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34. A wireless power transfer system comprising:
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a wireless power transfer system-charger; and a wireless power transfer system-device for receiving power from the wireless power transfer system-charger, wherein the wireless power transfer system-charger includes; a power supply; a transformer unit for converting a voltage supplied by the power supply into a direct current (DC) voltage; a controller for adjusting a level of the DC voltage of the transformer unit; a rectification and filtering unit for supplying a DC voltage to the transformer unit; a power converter for converting an output voltage of the transformer unit into an alternating current (AC) voltage; and a transmission-side matching unit for performing impedance matching between the wireless power transfer system-charger and the wireless power transfer system-device, wherein the transformer unit includes a DC-DC converter and a control unit for receiving an output voltage of the DC-DC converter and adjusting the output voltage, and wherein the control unit includes a divider for dividing the output voltage of the DC-DC converter. - View Dependent Claims (35)
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Specification