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Circuit Arrangement for Supplying Variable Loads from Three Phases

  • US 20080179952A1
  • Filed: 01/17/2008
  • Published: 07/31/2008
  • Est. Priority Date: 01/18/2007
  • Status: Active Grant
First Claim
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1. A circuit arrangement for supplying variable loads (I1, I2, M1, M2, O1, O2, O3) from three phases (L1, L2, L3), comprisinga circuit arrangement including four groups of terminals (A11, A12, A13, A14;

  • A21, A22, A23, A24;

    A31, A32;

    A41, A42, A43) for loads (I1, I2, M1, M2, O1, O2, O3), the loads are subsequently designated as terminal groups;

    the circuit arrangement is capable of supplying the terminals (A21, A22, A23, A24) of the second terminal group from the first phase (L1);

    the circuit arrangement is capable of supplying the terminals (A41, A42, A43) of the fourth terminal group from a second phase (L2);

    the circuit arrangement is capable of supplying the terminals (A11, A12, A13) of the first terminal group and the third terminal group (A31, A32) from a third phase (L3);

    the circuit arrangement capable of controlling the voltage of the four terminal groups,whereina first control loop is allocated to the first terminal group and the first control loop comprises a first controller and a first group of controllable switching means (S111 to S132) for setting the voltage as actuators, which is subsequently designated as first group of switching means,a second control loop is allocated to the second terminal group and the second control loop comprises a second controller and a second group of controllable switching means (S211 to S231) for setting the voltage as actuators which is subsequently designated as second group of switching means,a common third control loop is allocated to the third terminal group and the fourth terminal group and the third control loop comprises a third controller and a third group of controllable switching means (S311 to S345) for setting the voltage as actuators, which is subsequently designated as third group of switching means.

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