TRANSMITTING DEVICE, WIRELESS CHARGING SYSTEM COMPRISING TRANSMITTING DEVICE, AND METHOD FOR CONTROLLING CHARGING PROCESS THEREOF
First Claim
1. A transmitting device, comprising:
- a transmitting coil configured to transmit an electric energy of the transmitting device;
an oscillation and FM module configured to generate an LC resonance between the transmitting coil and the oscillation and FM module and to adjust a capacitance of the LC resonance so as to change a resonant frequency of the LC resonance;
a first detecting module configured to detect a voltage and a current of the transmitting device;
a control module configured to output a control signal to control the resonant frequency of the LC resonance according to a predetermined FM mode, to stabilize a resonant frequency corresponding to a highest charging efficiency according to the voltage and the current of the transmitting device and a voltage and a current of a receiving device, and to control the transmitting coil to transmit the electric energy;
a first communicating module configured to communicate with the receiving device wirelessly; and
a power module configured to supply a drive power to the transmitting device.
1 Assignment
0 Petitions
Accused Products
Abstract
A transmitting device, a wireless charging system comprising the transmitting device and a method for controlling a charging process of the wireless charging system are provided. The transmitting device comprises: a transmitting coil configured to transmit an electric energy of the transmitting device; an oscillation and FM module configured to generate an LC resonance between the transmitting coil and the oscillation and FM module and to adjust a capacitance of the LC resonance so as to change a resonant frequency of the LC resonance; a first detecting module configured to detect a voltage and a current of the transmitting device; a control module configured to output a control signal to control the resonant frequency of the LC resonance according to a predetermined FM mode; a first communicating module configured to communicate with the receiving device wirelessly; and a power module configured to supply a drive power to the transmitting device.
13 Citations
20 Claims
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1. A transmitting device, comprising:
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a transmitting coil configured to transmit an electric energy of the transmitting device; an oscillation and FM module configured to generate an LC resonance between the transmitting coil and the oscillation and FM module and to adjust a capacitance of the LC resonance so as to change a resonant frequency of the LC resonance; a first detecting module configured to detect a voltage and a current of the transmitting device; a control module configured to output a control signal to control the resonant frequency of the LC resonance according to a predetermined FM mode, to stabilize a resonant frequency corresponding to a highest charging efficiency according to the voltage and the current of the transmitting device and a voltage and a current of a receiving device, and to control the transmitting coil to transmit the electric energy; a first communicating module configured to communicate with the receiving device wirelessly; and a power module configured to supply a drive power to the transmitting device. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A wireless charging system, comprising a transmitting device and a receiving device, wherein:
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the transmitting device comprises; a transmitting coil configured to transmit an electric energy of the transmitting device; an oscillation and FM module configured to generate an LC resonance between the transmitting coil and the oscillation and FM module and to adjust a capacitance of the LC resonance so as to change a resonant frequency of the LC resonance; a first detecting module configured to detect a voltage and a current of the transmitting device; a control module configured to output a control signal to control the resonant frequency of the LC resonance according to a predetermined FM mode, to stabilize a resonant frequency corresponding to a highest charging efficiency according to the voltage and the current of the transmitting device and a voltage and a current of a receiving device, and to control the transmitting coil to transmit the electric energy; a first communicating module configured to communicate with the receiving device wirelessly; and a power module configured to supply a drive power to the transmitting device; and the receiving device comprises; a receiving coil configured to perform an electromagnetic induction coupling with the transmitting coil in the transmitting device and to receive an AC voltage; a rectifying and communicating module configured to rectify the AC voltage received by the receiving coil into a DC voltage and charge a load, and to communicate with the transmitting device wirelessly; and a second detecting module configured to detect the voltage and the current of the receiving device. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
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16. A method for controlling a charging process of a wireless charging system, the wireless charging system comprising a transmitting device and a receiving device, the method comprising:
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starting the charging process with a reference frequency; controlling a capacitance of an LC resonance according to a predetermined FM mode within a predetermined resonant frequency range so as to adjust a resonant frequency of the LC resonance, and detecting a voltage and a current of the transmitting device and a voltage and a current of the receiving device corresponding to the capacitance of the LC resonance; obtaining a highest charging efficiency according to the voltage and the current of the transmitting device and the voltage and the current of the receiving device and an optimal capacitance corresponding to the highest charging efficiency; and outputting the optimal capacitance to stabilize the resonant frequency of the LC resonance. - View Dependent Claims (17, 18, 19, 20)
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Specification