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Control of the attraction of an armature of a switching magnet and a switching arrangement for performing the method

  • US 5,793,599 A
  • Filed: 06/13/1996
  • Issued: 08/11/1998
  • Est. Priority Date: 06/14/1995
  • Status: Expired due to Fees
First Claim
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1. A method of regulation of the attraction of an armature of an electromagnet for operation of a control element, said method comprising providing at least one supply voltage, regulating the at least one supply voltage to provide a regulated supply voltage as an intermediate voltage value, and utilizing the regulated supply voltage in a current regulator to supply a regulated supply current of a desired value to the coil of the electromagnet;

  • and wherein the step of regulating the at least one supply voltage to provide a regulated supply voltage includes regulating the at least one supply voltage, under control of a feedback signal from the current regulator, to the lowest supply voltage value sufficient to regulate the current to a desired value in order to build up the magnetic field of the electromagnet, whereby energy-saving regulation of the current is achieved.

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