Magnetic coupling dual-mode wireless power transmission device and control method thereof

A technology of wireless power transmission and magnetic coupling, applied in circuit devices, electrical components, electromagnetic wave systems, etc., can solve the problem of reducing transmission efficiency, and achieve the effects of reducing power consumption, saving power, and improving efficiency

Active Publication Date: 2015-07-22
刘晓明
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] (2) When the wireless power transmission distance is less than the resonance critical transmission distance, the transmission efficiency of the magnetic coupling resonant wireless power transmission device decreases as the transmission distance decreases

Method used

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  • Magnetic coupling dual-mode wireless power transmission device and control method thereof
  • Magnetic coupling dual-mode wireless power transmission device and control method thereof

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Embodiment Construction

[0041] As shown in the figure, the magnetically coupled dual-mode wireless power transmission device of the present invention includes a transmitting end and a receiving end. Drive circuit, switching power supply, external power supply interface, transmitter control unit, primary induction coil voltage sampling module, ADC conversion circuit A, Wi-Fi module A, the power input port of the switching power supply is connected to the external power supply interface, and the power output of the switching power supply The port is connected to the power input port of the high-frequency inverter circuit, the control signal input port of the switching power supply is connected to the control signal output port of the transmitter control unit; the power output port of the high-frequency inverter circuit is connected to the primary induction coil, and the high-frequency inverter The drive signal input port of the transformer circuit is connected to the output port of the IGBT drive circui...

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Abstract

The invention belongs to the technical field of wireless power transmission, and particularly relates to a magnetic coupling dual-mode wireless power transmission device and a control method thereof. By the magnetic coupling dual-mode wireless power transmission device, wireless power transmission efficiency can be improved, and power loss is small. The magnetic coupling dual-mode wireless power transmission device comprises a transmitting end and a receiving end and is structurally characterized in that the transmitting end comprises a primary induction coil, a primary resonance coil, a primary resonance capacitor, a primary switch, a high-frequency inversion circuit, an IGBT driving circuit, a switch power source, an external power source interface, a transmitting end control unit, a primary induction coil voltage sampling module, an ADC conversion circuit A and a Wi-Fi module A, and a power input port of a switch power source is connected with the external power source interface while a power output port of the same is connected with a power input port of the high-frequency inversion circuit.

Description

technical field [0001] The invention belongs to the technical field of wireless power transmission, and in particular relates to a magnetic coupling dual-mode wireless power transmission device and a control method thereof. Background technique [0002] With the development of wireless power transmission technology, wireless power transmission devices are widely used. [0003] Wireless power supply devices that provide power for tailless home appliances, electric vehicles, and wireless charging mobile devices mostly use magnetic coupling inductive wireless power transmission technology for power transmission. Short distance, large transmission power loss, low transmission efficiency, and the power receiving device must be aligned with the power transmitting device, etc., making it difficult to be applied on a large scale. [0004] Since 2006, Professor Marin Soljacic of the Massachusetts Institute of Technology has successfully lit a 60W light bulb at a distance of 2.1m by ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J17/00H02J50/12
CPCH02J5/005
Inventor 刘晓明徐叶飞彭博孙天龙
Owner 刘晓明
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