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Magnetic flux conversion device

  • US 9,042,136 B2
  • Filed: 02/02/2012
  • Issued: 05/26/2015
  • Est. Priority Date: 02/02/2012
  • Status: Active Grant
First Claim
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1. A circuit, comprising:

  • a secondary stage configured to be inductively coupled with a power line carrying an alternating current (AC) source signal, wherein the power line acts as a primary stage to form a transformer with the secondary stage so that a magnetic field of the power line provides a secondary electrical signal in the secondary stage;

    a pair of output nodes;

    a regulator module configured to receive the secondary electrical signal and to produce an output signal with a target value across the pair of output nodes, wherein the regulator module, to produce the output signal with the target value, is to;

    receive a first voltage that is indicative of a value of the output signal across the pair of output nodes;

    receive a reference voltage that corresponds to the target value; and

    shunt the secondary stage if the first voltage is greater than the reference voltage, a rectifier coupled to the secondary stage and configured to convert the secondary electrical signal from an AC signal to a direct current (DC) secondary electrical signal and to provide the DC secondary electrical signal to the regulator module;

    wherein the secondary stage includes a first inductor and a second inductor, wherein the first inductor is configured to provide the secondary electrical signal, and the regulator module is configured to shunt the secondary stage by shunting the second inductor.

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