WIRELESS CHARGING TRANSMITTING DEVICE AND METHOD AND WIRELESS CHARGING SYSTEM

A wireless charging transmitting apparatus and method and a wireless charging system are provided. The transmitting apparatus includes a compensation circuit (206), an inverter circuit (201), a transmitting coil (202), an impedance adjustment circuit (203), and a controller (204). The impedance adju...

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Bibliographische Detailangaben
Hauptverfasser:	LIU, Yanding, MAO, Yunhe
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES ELECTRICITY ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL GENERATION MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES PERFORMING OPERATIONS SYSTEMS FOR STORING ELECTRIC ENERGY TRANSPORTING VEHICLES IN GENERAL
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Beschreibung
Zusammenfassung:	A wireless charging transmitting apparatus and method and a wireless charging system are provided. The transmitting apparatus includes a compensation circuit (206), an inverter circuit (201), a transmitting coil (202), an impedance adjustment circuit (203), and a controller (204). The impedance adjustment circuit (203) includes a leading-bridge-arm impedance adjustment circuit and a lagging-bridge-arm impedance adjustment circuit, and the leading-bridge-arm impedance adjustment circuit and the lagging-bridge-arm impedance adjustment circuit each include an inductive branch, where the inductive branch includes at least one controllable inductive branch, and each controllable inductive branch includes at least one inductor and at least one switch. The controller (204) controls the switches in the controllable inductive branches to be turned on or off, to adjust values of inductive currents injected into a leading bridge arm and a lagging bridge arm through the impedance adjustment circuit (203), so that controllable switching transistors in the leading bridge arm and the lagging bridge arm implement zero voltage switching. In this way, efficiency and interoperability of a wireless charging system are improved.