Linear compressor having a controller and method for controlling a linear compressor
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United States of America Patent
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Nov 24, 2015
Grant Date -
Sep 13, 2012
app pub date -
Nov 18, 2010
filing date -
Nov 18, 2009
priority date (Note) -
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Abstract
A linear compressor is provided that provides a greater power by changing a frequency at high load. The linear compressor includes a mechanical device having a fixed member, a movable member linearly reciprocated in the fixed member, one or more springs provided to elastically support the movable member, and a motor connected to the movable member, and an electric controller having a rectifier, an inverter that receives a DC voltage from the rectifier, converts the DC voltage to an AC voltage, and supplies the AC voltage to the motor, a voltage sensor that senses the DC voltage, a current sensor that senses a current, and a controller that calculates a required voltage for the motor, generates a control signal, and applies the control signal to the inverter, if the required voltage is greater than the DC voltage of the voltage sensor.
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