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US 2018/0323647 A1Published application
Wireless inductive power transfer
AssigneeKoninklijke Philips N.V.
InventorsANDRIES VAN WAGENINGEN, LAURENS HENRICUS SWAANS
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AssigneeKoninklijke Philips N.V.
InventorsANDRIES VAN WAGENINGEN, LAURENS HENRICUS SWAANS
Estimating the term…
An inductive power transfer system is arranged to transfer power from a power transmitter to a power receiver via a wireless power signal. The system supports communication from the power transmitter to the power receiver based on load modulation of the power signal. The power receiver transmitting a first message to the power transmitter which comprises a standby power signal requirement for the power signal during a standby phase. The power transmitter receives the message, and when the system enters the standby phase, the power transmitter provides the power signal in accordance with the standby power signal requirement during. A power receiver configurable standby phase is provided which may for example allow devices to maintain battery charge or to provide fast initialization of the power transfer phase.
A method of operating an inductive power transfer system, the method comprising:
The method of claim 17, wherein the second message indicates a phase the power transmitter should enter after a wake-up from the standby phase.
A method of operating a power transmitter of an inductive power transfer system comprising the power transmitter and a power receiver, the inductive power transfer system supporting communication from the power receiver to the power transmitter based on load modulation, the method comprising:
A method of operating a power receiver of an inductive power transfer system comprising a power transmitter for generating a wireless power signal for the power receiver when in a power transfer phase, the inductive power transfer system supporting communication from the power receiver to the power transmitter based on load modulation of the wireless power signal, the method comprising:
A power receiver for an inductive power transfer system comprising a power transmitter for generating a wireless power signal for the power receiver when in a power transfer phase, the inductive power transfer system supporting communication from the power receiver to the power transmitter based on load modulation of the wireless power signal, the power receiver comprising:
Dependencies are inferred from the claim text.