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Methods and apparatus for isolation barrier with integrated magnetics for high power modules

  • US 10,497,506 B2
  • Filed: 12/18/2015
  • Issued: 12/03/2019
  • Est. Priority Date: 12/18/2015
  • Status: Active Grant
First Claim
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1. An apparatus, comprising:

  • a first dielectric layer having upper and lower surfaces;

    at least one first conductive layer configured as a first transformer coil above the upper surface;

    a first magnetic layer above the at least one first conductive layer;

    a second dielectric layer between the at least one first conductive layer and the first magnetic layer;

    at least one second conductive layer configured as a second transformer coil below the lower surface;

    a second magnetic layer below the at least one second conductive layer, the first magnetic layer and the second magnetic layer configured to confine and focus the flux between the first transformer coil and the second transformer coil to increase an effective inductance between the first transformer coil and the second transformer coil by at least a factor of two;

    a third dielectric layer between the at least one second conductive layer and the second magnetic layer; and

    a third conductive layer forming an electromagnetic interference (EMI) shield between and isolated from the at least one first conductive layer and the at least one second conductive layer.

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