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MOTOR DRIVING APPARATUS INCLUDING THRUST CONSTANT CALCULATION UNIT FOR CALCULATING MOTOR THRUST CONSTANT OF LINEAR VIBRATION MOTOR, AIR CONDITIONER, REFRIGERATOR, CRYOGENIC FREEZER, HOT WATER SUPPLY, AND PORTABLE PHONE
MOTOR DRIVING APPARATUS INCLUDING THRUST CONSTANT CALCULATION UNIT FOR CALCULATING MOTOR THRUST CONSTANT OF LINEAR VIBRATION MOTOR, AIR CONDITIONER, REFRIGERATOR, CRYOGENIC FREEZER, HOT WATER SUPPLY, AND PORTABLE PHONE
PURPOSE: A motor driving apparatus, an air conditioner, a refrigerator, a cryogenic freezer, a hot water supply, and a portable phone are provided to achieve improved accuracy of position calculation of a mover of a linear motor by using a motor thrust constant having an accurate value corresponding to each linear vibration motor. CONSTITUTION: A motor driving apparatus(101a) comprises a motor driver(1a) having an operation mode for applying driving voltages to a linear vibration motor(100) and a non-operation mode for applying DC voltages to the linear vibration motor such that a thrust of a mover of the linear vibration motor is generated; a thrust information output unit for outputting thrust information indicating thrust of the mover generated by the application of DC voltages to the linear vibration motor; a thrust constant calculation unit(4a) for calculating a motor thrust constant of the linear vibration motor by dividing the thrust indicated by the thrust information output unit by the DC current supplied to the linear vibration motor; and a mover position calculation unit(2a) for calculating position of the mover on the basis of the motor thrust constant calculated by the thrust constant calculation unit.
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