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Circuit system having at least two inverter modules connected in parallel, method for connecting at least two inverter modules in parallel and circuit substrate for a gate driver circuit of an inverter module

  • US 9,374,068 B2
  • Filed: 02/03/2011
  • Issued: 06/21/2016
  • Est. Priority Date: 04/01/2010
  • Status: Active Grant
First Claim
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1. A circuit system, comprising:

  • at least two inverter modules connected in parallel, each of the at least two inverter modules including an inverter circuit having power semiconductor circuit breakers, and a gate driver circuit for controlling the power semiconductor circuit breakers;

    wherein the gate driver circuit of a first one of the inverter modules transmits a control signal from a low-voltage side to a high-voltage side, the gate driver circuit including a first driver output terminal, which is electrically connected to first driver input terminals of the gate driver circuits of the inverter modules connected in parallel, and via which one of a high-voltage side control signal and a control signal deduced therefrom, is transmittable to the gate driver circuits of the inverter modules connected in parallel;

    wherein the power semiconductor circuit breakers of the inverter circuits of the first inverter module and of the inverter modules, which are connected in parallel to the first inverter module, are controlled based on the one of the high-voltage side control signal and the control signal deduced therefrom, wherein the gate driver circuit is electrically connected to the first driver output terminal; and

    wherein the gate driver circuit of the first one of the inverter modules has a second driver output terminal which is electrically connected to second driver input terminals of the gate driver circuits of the inverter modules connected in parallel, and via which high-voltage side reference grounds of the gate driver circuits of the inverter modules connected in parallel are combinable.

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