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Leadframe-based module DC bus design to reduce module inductance

  • US 7,193,860 B2
  • Filed: 12/02/2005
  • Issued: 03/20/2007
  • Est. Priority Date: 09/20/2000
  • Status: Expired due to Term
First Claim
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1. A direct current (DC Bus) for use in a power module, comprising:

  • a positive DC conductor bus plate;

    a negative DC conductor bus plate placed parallel to said positive bus;

    a plurality of positive leads connected to said positive bus, wherein said positive leads are connectable to a positive terminal of a power source;

    a plurality of negative leads connected to said negative bus, wherein said negative leads are connectable to a ground terminal;

    one or more positive connections fastenable from said positive bus to the high side of the power module;

    one or more negative connections fastenable from said negative bus to the low side of the power module;

    wherein said positive bus and said negative bus permit counter-flow of currents thereby canceling magnetic fields and their associated inductances; and

    wherein said positive bus and said negative bus are located between the high side and the low side of the power module.

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