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Method and circuit for muting electromagnetic interference during maneuvering of a device

  • US 10,357,144 B2
  • Filed: 03/13/2014
  • Issued: 07/23/2019
  • Est. Priority Date: 03/14/2013
  • Status: Active Grant
First Claim
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1. A method for controlling an electrical current of an electrical coil, comprising:

  • for the electrical coil connected to a voltage source via a switching circuit, transitioning a state of the switching circuit between,a current control mode of operation in which the switching circuit alternates a voltage polarity of the voltage source to thereby control a magnitude and direction of an electrical current of the electrical coil, anda current hold mode of operation in which the switching circuit disconnects the electrical coil from the voltage source and short-circuits the electrical coil to maintain the magnitude and direction of the electrical current of the electrical coil at a transition time between the current control mode and the current hold mode.

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