ELEVATOR CONTROL APPARATUS
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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Abstract
In an elevator control apparatus, a DC-DC converter including a first switching element and a second switching element is configured to generate 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 are configured to independently operate the first switching element and the second switching element, respectively. A first calculation unit and a second calculation unit are configured to independently control power supply voltages of the first photocoupler and the second photocoupler, respectively.
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Citations
2 Claims
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1. An elevator control apparatus, comprising:
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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. - View Dependent Claims (2)
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Specification