Multi-bridge topology
First Claim
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1. A wireless power supply for supplying power wirelessly to a remote device, the wireless power supply comprising:
- a controller;
a first half-bridge circuit electrically connected to the controller;
a second half-bridge circuit electrically connected to the controller;
wherein the controller selectively configures the wireless power supply between a plurality of different bridge topologies during operation by controlling the first half-bridge circuit and the second half-bridge circuit;
wherein the controller selects a bridge topology from the plurality of different bridge topologies in response to inductive coupling of the remote device to the wireless power supply and based on feedback from the remote device;
wherein, in response to the wireless power supply being configured to the selected bridge topology, the controller selectively configures the wireless power supply to fine tune an amount of power delivered to the remote device by adjusting a characteristic of at least one of the half bridge circuits based on feedback from the remote device;
wherein the controller selects a different bridge topology from the plurality of different bridge topologies in response to inductive coupling of a new remote device to the wireless power supply and based on feedback from the new remote device;
wherein, in response to the wireless power supply being configured to the different bridge topology, the controller selectively configures the wireless power supply to fine tune an amount of power delivered to the new remote device by adjusting a characteristic of at least one of the half bridge circuits based on feedback from the new remote device.
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Abstract
A power supply with a multi-bridge topology configured to provide multiple different bridge topologies during operation. The power supply includes a plurality of half-bridge circuits connected to a controller. The controller can selectively configure the power supply between a plurality of different bridge topologies during operation by controlling the half-bridge circuit.
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Citations
29 Claims
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1. A wireless power supply for supplying power wirelessly to a remote device, the wireless power supply comprising:
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a controller; a first half-bridge circuit electrically connected to the controller; a second half-bridge circuit electrically connected to the controller; wherein the controller selectively configures the wireless power supply between a plurality of different bridge topologies during operation by controlling the first half-bridge circuit and the second half-bridge circuit; wherein the controller selects a bridge topology from the plurality of different bridge topologies in response to inductive coupling of the remote device to the wireless power supply and based on feedback from the remote device; wherein, in response to the wireless power supply being configured to the selected bridge topology, the controller selectively configures the wireless power supply to fine tune an amount of power delivered to the remote device by adjusting a characteristic of at least one of the half bridge circuits based on feedback from the remote device; wherein the controller selects a different bridge topology from the plurality of different bridge topologies in response to inductive coupling of a new remote device to the wireless power supply and based on feedback from the new remote device; wherein, in response to the wireless power supply being configured to the different bridge topology, the controller selectively configures the wireless power supply to fine tune an amount of power delivered to the new remote device by adjusting a characteristic of at least one of the half bridge circuits based on feedback from the new remote device. - View Dependent Claims (2, 3, 4, 5, 21, 22, 23)
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6. A wireless power supply that supplies power wirelessly to a remote device, the wireless power supply comprising:
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a primary inductor having a first terminal and a second terminal; a first inverter including a first switch for selectively coupling a first node to a first voltage source and a second switch for selectively coupling the first node to a first reference voltage, the first node is electrically connected to the first terminal of the primary inductor; a second inverter including a first switch for selectively coupling a second node to a second voltage source and a second switch for selectively coupling the second node to a second reference voltage, the second node is electrically connected to the second terminal of the primary inductor; and a controller for configuring the wireless power supply between a plurality of different bridge topologies by controlling the first switch and the second switch of the first inverter and by controlling the first switch and the second switch of the second inverter; wherein the controller selects a bridge topology from the plurality of different bridge topologies in response to inductive coupling of the remote device to the wireless power supply and based on feedback from the remote device; wherein, in response to the wireless power supply being configured to the selected bridge topology, the controller selectively configures the wireless power supply to fine tune an amount of power delivered to the remote device by adjusting a characteristic of at least one of the inverters based on feedback from the remote device; wherein the controller selects a different bridge topology from the plurality of different bridge topologies in response to inductive coupling of a new remote device to the wireless power supply and based on feedback from the new remote device; wherein, in response to the wireless power supply being configured to the different bridge topology, the controller selectively configures the wireless power supply to fine tune an amount of power delivered to the new remote device by adjusting a characteristic of at least one of the inverters based on feedback from the new remote device. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 24, 25, 26)
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14. A wireless power supply system for supplying power wirelessly to a remote device, the system wireless power supply comprising:
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a controller; a first half-bridge circuit electrically connected to the controller; a second half-bridge circuit electrically connected to the controller; wherein the first half-bridge circuit and the second half-bridge circuit are electrically connected to a primary coil; wherein the controller selectively configures the wireless power supply between a half-bridge topology and a full-bridge topology by controlling the first half-bridge circuit and the second half-bridge circuit; wherein the controller selects the half-bridge topology for a first remote device in response to inductive coupling of the first remote device to the wireless power supply and based on feedback from the first remote device; wherein the controller selects the full-bridge topology for a second remote device that is different than the first remote device in response to inductive coupling of the second remote device to the wireless power supply and based on feedback from the second remote device; wherein, while the power supply is configured in the half-bridge topology, the controller selectively fine tunes an amount of power delivered to the remote device while configured in the half bridge topology by adjusting a first characteristic based on feedback from the first remote device; wherein, while the power supply is configured in the full-bridge topology, the controller selectively fine tunes an amount of power delivered to the second remote device by adjusting a second characteristic based on feedback from the second remote device. - View Dependent Claims (15, 16, 17, 18, 19, 20, 27, 28, 29)
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Specification