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Multi-bridge topology

  • US 10,193,389 B2
  • Filed: 05/02/2017
  • Issued: 01/29/2019
  • Est. Priority Date: 11/28/2011
  • Status: Active Grant
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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