Wireless charging system and method for controlling the same
First Claim
Patent Images
1. A wireless charging system, comprising:
- an inverter changing a DC voltage applied from a power source module to a pulse voltage signal by a switching operation; and
,a wireless power transmitting module including at least one power transmitter receiving the pulse voltage and transmitting power to at least one power receiver,wherein the wireless power transmitting module controls the power, which is transmitted to the at least one power receiver depending on required power of the at least one power receiver,wherein the at least one power transmitter comprises a resonance tank transmitting power to the at least one power receiver, and an enabling switch connected to the resonance tank in series, and a magnitude of a driving voltage as an input of the enabling switch is controlled depending on the required power,wherein the required power is power to allow a load of the at least one power receiver to be charged up to a targeted voltage gain.
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Abstract
There is provided a wireless charging system, including: a wireless power transmitting module including at least one power transmitter transmitting power and at least one wireless power receiving module receiving the power, wherein the wireless power transmitting module controls the power, which is transmitted to the wireless power receiving modules corresponding to the power transmitters, from the power transmitters, depending on targeted voltage gains of the wireless power receiving modules corresponding to the power transmitters.
39 Citations
16 Claims
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1. A wireless charging system, comprising:
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an inverter changing a DC voltage applied from a power source module to a pulse voltage signal by a switching operation; and
,a wireless power transmitting module including at least one power transmitter receiving the pulse voltage and transmitting power to at least one power receiver, wherein the wireless power transmitting module controls the power, which is transmitted to the at least one power receiver depending on required power of the at least one power receiver, wherein the at least one power transmitter comprises a resonance tank transmitting power to the at least one power receiver, and an enabling switch connected to the resonance tank in series, and a magnitude of a driving voltage as an input of the enabling switch is controlled depending on the required power, wherein the required power is power to allow a load of the at least one power receiver to be charged up to a targeted voltage gain. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for controlling a wireless charging system including a wireless power transmitting module including an inverter and at least one power transmitter comprising a resonance tank transmitting power to at least one power receiver and an enabling switch connected to the resonance tank in series, comprising:
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a required power receiving step of receiving required power of the at least one power receiver; a driving frequency determining step of determining a frequency of a driving signal of the inverter based on the required power; and a transmitting power controlling step of controlling power, which is transmitted to the power receiver by controlling a magnitude of a driving voltage as an input of the enabling switch depending on the required power, wherein the required power is power to allow a load of the at least one power receiver to be charged up to a targeted voltage gain. - View Dependent Claims (12, 13, 14, 15, 16)
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Specification