Wireless power transmitter with receiver overvoltage protection, controller and method

Wireless power transmitter with receiver overvoltage protection, controller and method

The invention provides a wireless power transmitter with receiver overvoltage protection, a controller and a method. The wireless power transmitter comprises: a power stage circuit comprising a plurality of switches coupled to a resonant transmitting circuit, where the resonant transmitting circuit...

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1. Verfasser: LIN FUQI
Format: Patent
Sprache:chi ; eng
Schlagworte:
CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
GENERATION
SYSTEMS FOR STORING ELECTRIC ENERGY
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creator LIN FUQI
description The invention provides a wireless power transmitter with receiver overvoltage protection, a controller and a method. The wireless power transmitter comprises: a power stage circuit comprising a plurality of switches coupled to a resonant transmitting circuit, where the resonant transmitting circuit comprises a transmitting coil and a resonant capacitor coupled to each other; the transmitting controller is used for controlling the power level circuit to convert an input power supply to generate a driving power supply according to a pulse width modulation control signal when a corresponding wireless power receiver is close to the resonant transmitting circuit, and the driving power supply drives the resonant transmitting circuit to generate a wireless transmitting power supply; therefore, the corresponding wireless power receiver is wirelessly supplied with power. When the change rate of a driving current of the driving power supply to time exceeds a change rate threshold value, an operation parameter of the po
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The wireless power transmitter comprises: a power stage circuit comprising a plurality of switches coupled to a resonant transmitting circuit, where the resonant transmitting circuit comprises a transmitting coil and a resonant capacitor coupled to each other; the transmitting controller is used for controlling the power level circuit to convert an input power supply to generate a driving power supply according to a pulse width modulation control signal when a corresponding wireless power receiver is close to the resonant transmitting circuit, and the driving power supply drives the resonant transmitting circuit to generate a wireless transmitting power supply; therefore, the corresponding wireless power receiver is wirelessly supplied with power. 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subjects CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
GENERATION
SYSTEMS FOR STORING ELECTRIC ENERGY
title Wireless power transmitter with receiver overvoltage protection, controller and method
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