Control circuit for at least one contactor and method for operating at least one contactor

Control circuit for at least one contactor and method for operating at least one contactor

  • CN 104,718,099 B
  • Filed: 09/23/2013
  • Issued: 09/01/2020
  • Est. Priority Date: 10/18/2012
  • Status: Active Grant
First Claim
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1. A control circuit (30) for at least one contactor, comprising:

  • -a first and a second connection (11,

         12) by means of which the control circuit (30) can be connected to a plurality of poles of the energy storage;

    -at least one first and one second output (15,

         16), via which the control circuit (30) can be connected to a first and a second connection of a control coil for a contactor, wherein the at least one second output (16) is connected to the second connection (12) via an electrical connection (8);

    -a voltage holding unit (10) connected to the at least one first output (15) and configured to provide a holding voltage for the control coil at the at least one first output (15);

    it is characterized in that the preparation method is characterized in that,the electrical connection (8) has a current regulation circuit (5) comprising a transistor (4), wherein the transistor (4) is provided for operating in the linear region of its characteristic curve in order to regulate the resistance of the switching line of the transistor (4) and to regulate the current through the electrical connection (8) to a predetermined value.

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