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High Efficiency Commutation Circuit

  • US 20170099019A1
  • Filed: 03/31/2015
  • Published: 04/06/2017
  • Est. Priority Date: 03/31/2014
  • Status: Active Grant
First Claim
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1. A commutation circuit comprising:

  • a coil connected to an H bridge, the H bridge comprising four main switches for reversing polarity and a resulting coil current in the coil,a voltage source configured to generate a bypass current, and at least one auxiliary switch for controlling the bypass current to thereby decrease a switch current through at least one of the main switches,wherein the commutation circuit is configured to decrease the switch current through at least one of the main switches without turning on any of the remaining main switches.

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