Wireless charging system and method for magnetic resonance type vehicle-mounted mobile terminal

Abstract

The invention discloses a wireless charging system and method for a magnetic resonance type vehicle-mounted mobile terminal. The system comprises a vehicle-mounted magnetic resonance wireless charging transmitting device and a wireless charging receiving device of the mobile terminal, wherein the vehicle-mounted magnetic resonance wireless charging transmitting device comprises a power management circuit, a transmitting end short distance wireless communication transceiving circuit, a control circuit, a high-frequency oscillation circuit, a coupling transmission circuit and a coupling transmitting coil; the wireless charging receiving device of the mobile terminal comprises a resonance receiving circuit, a rectifier filter voltage stabilizing circuit, a charging state detection circuit, an information acquisition circuit and a receiving end short distance wireless communication transceiving circuit. It is confirmed that charging energy can be transmitted after the mobile terminal is chargeable in a short distance wireless communication mode, safety and energy conservation are guaranteed, and the wireless charging system can be directly used in vehicles.

Description

technical field [0001] The invention belongs to the technical field of mobile terminal wireless charging, in particular to a magnetic resonance-based wireless charging system for mobile terminals in vehicles. Background technique [0002] At present, the mobile terminal charging methods in the car are directly connected between the charger and the car, or wireless charging based on the principle of electromagnetic induction; the former cannot be used without a dedicated charger, and it is connected through a wired method. It is not very convenient when accessing mobile terminal equipment; the latter charging method is limited by the sensing distance and the factors that require a large charging current to charge normally, so the application range is greatly restricted. [0003] At present, magnetic resonance technology is mainly reflected in the application of information transmission, but its application in power transmission has been blank. The wireless charging method ba...

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Problems solved by technology

[0002] At present, the mobile terminal charging methods in the car are directly connected between the charger and the car, or wireless charging based on the principle of electromagnetic induction; the former cannot be used without a dedicated charger, and it is connected through a wired method. It is not very convenient when accessing mobile terminal equipment; the latter charging method is limited by the sensing distance and the factors that require a large charging current to charge normally, so the application range is greatly restricted

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