Compressor driving apparatus and refrigerator including the same
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United States of America Patent
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Jun 13, 2023
Grant Date -
N/A
app pub date -
Apr 4, 2018
filing date -
Apr 4, 2017
priority date (Note) -
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Abstract
Described are a compressor driving apparatus and a refrigerator including the same. The compressor driving apparatus includes: switching elements; an inverter; an output current detector for detecting an output current flowing through a motor; and an inverter controller for controlling the inverter. The inverter controller controls the piston so that one end of the piston is fixed at a first position spaced apart from the discharge unit at stroke of the piston during a first period, controls the piston to collide with the discharge unit when a change rate in an operation rate or a position error of the compressor is equal to or greater than a predetermined value, and controls the piston so that the one end of the piston is fixed at a second position spaced apart from the discharge unit at stroke of the piston during a second period after the collision of the piston.
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