MOTOR CURRENT DETECTING DEVICE AND AIR CONDITIONING APPARATUS
First Claim
1. A motor current detecting device comprising:
- a first wire configured and arranged to carry flow ofa motor current that has been passed through a motor anda drive current that has been passed through a motor drive unit to drive the motor;
an instantaneous current detecting unit configured and arranged to detect an instantaneous value for a sum of the motor current and the drive current flowing on the first wire;
an average electric current detecting unit configured and arranged to detect an average value of the sum of the motor current and the drive current flowing on the first wire; and
a calculation unit configured to calculate the motor current on the basis of the instantaneous value detected by the instantaneous current detecting unit and the average value detected by the average current detecting unit.
1 Assignment
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Accused Products
Abstract
A motor current detecting device includes a first wire, an instantaneous current detecting unit, an average electric current detecting unit, and a calculation unit. The first wire is configured and arranged to carry flow of a motor current that has been passed through a motor and a drive current that has been passed through a motor drive unit to drive the motor. The instantaneous current detecting unit is configured and arranged to detect an instantaneous value for a sum of the motor current and the drive current flowing on the first wire. The average electric current detecting unit is configured and arranged to detect an average value of the sum of the motor current and the drive current flowing on the first wire. The calculation unit is configured to calculate the motor current on the basis of the instantaneous value and the average value.
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Citations
20 Claims
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1. A motor current detecting device comprising:
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a first wire configured and arranged to carry flow of a motor current that has been passed through a motor and a drive current that has been passed through a motor drive unit to drive the motor; an instantaneous current detecting unit configured and arranged to detect an instantaneous value for a sum of the motor current and the drive current flowing on the first wire; an average electric current detecting unit configured and arranged to detect an average value of the sum of the motor current and the drive current flowing on the first wire; and a calculation unit configured to calculate the motor current on the basis of the instantaneous value detected by the instantaneous current detecting unit and the average value detected by the average current detecting unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification