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Multi-source, multi-load systems with a power extractor

  • US 10,158,233 B2
  • Filed: 03/02/2016
  • Issued: 12/18/2018
  • Est. Priority Date: 11/27/2006
  • Status: Active Grant
First Claim
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1. An apparatus to transfer energy from a source to a load, comprising:

  • an input port to connect to an energy source;

    an output port to connect to a load; and

    a power extractor to transfer energy from the energy source to the load, the power extractor includinga first transformer including one end of a primary winding coupled to the input port and the other end of the primary winding coupled to a node via a first capacitor; and

    a second transformer including one end of a primary winding coupled to the output port and the other end of the primary winding coupled to the node via a second capacitor; and

    wherein the node is coupled through the first transformer secondary winding to circuit ground, and the node is coupled through the second transformer secondary winding to circuit ground, and wherein the power extractor is configured to switch the other end of the primary winding of the first transformer and the other end of the primary winding of the second transformer in accordance with a power change detection at the input port.

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