COMPRESSOR DRIVING APPARATUS AND HOME APPLIANCE INCLUDING THE SAME
First Claim
1. A compressor drive of a home appliance having a mechanical expansion valve and a compressor, the compressor drive comprising:
- a capacitor that stores a charge;
an inverter that converts direct current associated with the stored charge of the capacitor into alternating current based on a switching control signal, and outputs the alternating current toward a motor;
output current detection circuitry that generates an output current based on the alternating current flowing between the inverter and the motor; and
an inverter controller that generates the switching control signal to;
start the motor, andcontrol a speed increase of the started motor based on a slope associated with a change in the output current from the output current detection circuitry during the speed increase of the motor.
1 Assignment
0 Petitions
Accused Products
Abstract
A compressor driving apparatus, or a home appliance including the same, includes a DC terminal capacitor to store a charge, an inverter to convert direct current associated with the charge of the DC terminal capacitor into an alternating current and output the alternating current to a motor, an output current detection unit to detect an output current flowing in the motor, and an inverter controller to increase a motor speed by starting the motor, and controlling a speed increase of the motor to change based on an increasing slope of a change in an output current detected by the output current detection unit during the speed increase of the motor.
-
Citations
21 Claims
-
1. A compressor drive of a home appliance having a mechanical expansion valve and a compressor, the compressor drive comprising:
-
a capacitor that stores a charge; an inverter that converts direct current associated with the stored charge of the capacitor into alternating current based on a switching control signal, and outputs the alternating current toward a motor; output current detection circuitry that generates an output current based on the alternating current flowing between the inverter and the motor; and an inverter controller that generates the switching control signal to; start the motor, and control a speed increase of the started motor based on a slope associated with a change in the output current from the output current detection circuitry during the speed increase of the motor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
-
-
16. A home appliance comprising:
-
a mechanical expansion valve; a compressor; and a compressor drive that includes; a capacitor that stores a charge; an inverter that converts direct current associated with the stored charge of the capacitor into alternating current based on a switching control signal, and outputs the alternating current toward a motor; output current detection circuitry that generates an output current based on the alternating current flowing between the inverter and the motor; and an inverter controller that generates the switching control signal to; start the motor, and control a speed increase of the started motor based on a slope associated with a change in the output current from the output current detection circuitry during the speed increase of the motor. - View Dependent Claims (17, 18, 19, 20, 21)
-
Specification