Method and Apparatus for Inductive Power Transfer
1 Assignment
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Accused Products
Abstract
Methods and apparatuses for communicating across an inductive charging interface. Methods and apparatuses for improved efficiency of power transfer across an inductive charging interface.
210 Citations
69 Claims
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1-49. -49. (canceled)
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50. An adaptive power control system for an electromagnetic induction power transfer apparatus comprising:
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a signal receiver; a power supply with an active state and an inactive state, configured to switch between the active state and the inactive state at a selectable duty cycle; a power-transmitting inductor coupled to the power supply; wherein; the duty cycle of the power supply is modified in response to a signal received from the signal receiver. - View Dependent Claims (51, 52, 53, 54, 55, 56, 57, 58)
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59. An adaptive power system comprising:
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a power transmitter comprising; a signal receiver configured to receive an instruction; a power supply with an active state and an inactive state, configured to switch between the active state and the inactive state at a selectable duty cycle; and a power-transmitting inductor coupled to the power supply; and a power receiver comprising; a battery; a power-receiving inductor having at least an active state and an inactive state; and a signal transmitter coupled to the power-receiving inductor configured to send an instruction. - View Dependent Claims (60, 61, 62, 63, 64, 65, 66, 67, 68)
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69. An adaptive power system comprising:
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a power transmitter comprising; a power supply with an active state and an inactive state, configured to switch between the active state and the inactive state; a first communication controller configured to request permission to enable the active state; and a power-transmitting inductor coupled to the power supply; and a power receiver comprising; a battery; a power-receiving inductor having at least an active state and an inactive state; and a second communication controller coupled to the power-receiving inductor configured to receive the request; wherein the second communication controller configured to send an indication to the first communication controller to enable the active state upon receipt of the request.
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Specification