Apparatus and method for controlling a compressor, and refrigerator comprising same

摘要

The present invention relates to an apparatus for controlling a compressor, to a method for controlling a compressor and to a refrigerator comprising same. According to certain embodiments of the present invention, a compressor operates selectively in a TRIAC driving mode or in a mode in which commercial power is directly used in accordance with the quality of the electricity of the commercial power. According to certain embodiments of the present invention, the commercial power is directly applied to the compressor within the range of a predetermined voltage or frequency so as to reduce or remove losses caused by the TRIAC driving, and power consumption is reduced to improve energy efficiency.

主权项

1. A refrigerator comprising:
a commercial power source to supply power to the refrigerator and a compressor; a TRIAC driven by a gate driving signal to operate the compressor; a compressor controller opened or closed in response to a first control signal, the compressor controller driving the TRIAC by generating the gate driving signal; a switching unit to connect the TRIAC to the compressor in response to a second control signal or the commercial power source directly to the compressor; and a refrigerator controller to open or close the compressor controller by generating the first control signal, and open or close the switching unit by generating the second control signal based on an input voltage or an input frequency of the commercial power source.