MULTIMODE OPERATION OF WIRELESS POWER SYSTEM WITH SINGLE RECEIVER
First Claim
1. A mobile device comprising:
- a coil that receives an AC electromagnetic field and converts the AC electromagnetic field into an AC electromagnetic current that powers the mobile device and/or charges a battery of the mobile device;
a power receiver unit (PRU) electrically coupled to the coil, wherein the PRU receives power in at least one of a magnetic induction (MI) mode and/or a magnetic resonance (MR) mode, wherein the PRU comprises;
a controller, wherein the controller;
receives a first signal from a power transmitter unit (PTU) indicating that the PTU can charge the PRU through a MI or a MR connection;
sends a response to the first signal; and
transitions the PRU to receive the charge in either the MI or MR mode through the coil.
1 Assignment
0 Petitions
Accused Products
Abstract
Wireless charging, such as that conducted according to various industry standards for wireless charging, can be conducted by magnetic resonance (MR) and/or magnetic induction (MI). Systems, devices, and methods herein provide management of dual mode recharging where a power transmitter unit (PTU) can provide power to charge a power receiver unit (PRU) by MR, MI or both MR and MI. To management the dual mode recharging, the PTU completes handshakes for both modes then determines the abilities of the PRU. Based on the PRU, the PTU selects the MR mode, the MI mode, or a dual mode (using both MR and MI charging). In dual mode, the PTU can use MR and MI charging simultaneously or alternate between the MR and MI modes.
27 Citations
20 Claims
-
1. A mobile device comprising:
-
a coil that receives an AC electromagnetic field and converts the AC electromagnetic field into an AC electromagnetic current that powers the mobile device and/or charges a battery of the mobile device; a power receiver unit (PRU) electrically coupled to the coil, wherein the PRU receives power in at least one of a magnetic induction (MI) mode and/or a magnetic resonance (MR) mode, wherein the PRU comprises; a controller, wherein the controller; receives a first signal from a power transmitter unit (PTU) indicating that the PTU can charge the PRU through a MI or a MR connection; sends a response to the first signal; and transitions the PRU to receive the charge in either the MI or MR mode through the coil. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. A method for managing wireless charging in dual modes, the method comprising:
-
a controller of a power transmitter unit (PTU) detecting a load associated with a power receiver unit (PRU) of a mobile device; in response to detecting the load, the controller attempting a magnetic induction (MI) connection; in response to detecting the load, the controller attempting a magnetic resonance (MR) connection; and based on the attempt at the MI connection and/or the MR connection, supporting power transfer to the PRU with the MI connection, the MR connection, or both the MI and MR connection. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16)
-
-
17. A wireless charging platform comprising:
-
a coil that provides an AC electromagnetic field to charge a power receiver unit (PRU) of a mobile device; a power transmitter unit (PTU) electrically coupled to the coil, wherein the PTU provides power in at least one of a magnetic induction (MI) mode and/or a magnetic resonance (MR) mode, wherein the PTU comprises; a controller, wherein the controller; detects a load associated with the PRU of the mobile device; in response to detecting the load, attempts a magnetic induction (MI) connection; in response to detecting the load, attempts a magnetic resonance (MR) connection; and based on the attempt at the MI connection and/or the MR connection, supports power transfer to the PRU with the MI connection, the MR connection, or both the MI and MR connection. - View Dependent Claims (18, 19, 20)
-
Specification