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ELEVATOR CONTROL APPARATUS

  • US 20160194180A1
  • Filed: 09/27/2013
  • Published: 07/07/2016
  • Est. Priority Date: 09/27/2013
  • Status: Active Grant
First Claim
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1. An elevator control apparatus, comprising:

  • a DC-DC converter comprising a first switching element and a second switching element, for generating power for driving an elevator brake by alternately operating each of the first switching element and the second switching element;

    a first photocoupler and a second photocoupler for independently operating the first switching element and the second switching element, respectively; and

    a first calculation unit and a second calculation unit for independently controlling power supply voltages of the first photocoupler and the second photocoupler, respectively.

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