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US 11,108,435 B2Granted
Inductive power receiver
AssigneeApple Inc.
InventorsRon Rafer Floresca, Arunim Kumar
Life of this patent
Estimating the term…
Abstract
An inductive power receiver including a switch mode regulator to control the power flow from a power receiving coil and a modulator to communicate to an inductive power transmitter via the power receiving coil. The switch mode regulator operates in a different modes during transmitting and non-transmitting periods.
Claims19
An inductive power receiver comprising:
- a power receiving coil;
- a switch mode regulator that varies at least one of a switching duty cycle or a switching frequency to regulate at least one of an output voltage or an output current;
- a linear regulator that regulates at least one of an output voltage or an output current;
- and
- a modulator configured to communicate to an inductive power transmitter via the power receiving coil during one or more communicating periods and not communicate during one or more non-communicating periods,
- wherein:
- the switch mode regulator operates to control power flow from the power receiving coil during the non-communicating period and does not operate to control power flow from the power receiving coil during the communicating period;
- and
- the linear regulator operates to control power flow from the power receiving coil during the communicating period and does not operate to control power flow from the power receiving coil during the non-communicating period.
6 more elements
Dependencies are inferred from the claim text.