Inverter for a driving a motor
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United States of America Patent
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Mar 15, 2016
Grant Date -
Jan 30, 2014
app pub date -
Sep 30, 2013
filing date -
Mar 31, 2011
priority date (Note) -
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Abstract
An inverter for generating a plurality of alternating signals to be supplied to a motor, the motor having a plurality of phases and a plurality of coils arranged at each of the plurality of phases is provided. The inverter is a motor driving inverter characterized in including a multi-level pulse-density modulator configured to modulate a signal that fluctuates periodically and controls rotation of the motor; and a plurality of switching elements configured to generate each of the plurality of alternating signals by controlling an ON/OFF of a direct current according to selection by an output signal of the pulse-density modulator.
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