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Paralleling of switching devices for high power circuits

  • US 10,200,030 B2
  • Filed: 03/11/2016
  • Issued: 02/05/2019
  • Est. Priority Date: 03/13/2015
  • Status: Active Grant
First Claim
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1. A circuit comprising:

  • a first half bridge comprising a first high side switch, a first low side switch, and a first gate driver, the first gate driver being configured to apply switching signals to the first high side switch and the first low side switch;

    a second half bridge comprising a second high side switch, a second low side switch, and a second gate driver, the second gate driver being configured to apply switching signals to the second high side switch and the second low side switch;

    a first inductor having a first side electrically connected to an output node of the first half bridge, the output node of the first half bridge being between the first high side switch and the first low side switch;

    a second inductor having a first side electrically connected to an output node of the second half bridge, the output node of the second half bridge being between the second high side switch and the second low side switch; and

    a main inductor coupled to a node which is between a second side of the first inductor and a second side of the second inductor;

    whereinan inductance of the main inductor is greater than an inductance of each of the first and second inductors; and

    the first and second inductors are inversely coupled to one another.

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