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Method of controlling compressor speed in Variable Speed Refrigerator

IP.com Disclosure Number: IPCOM000031222D
Publication Date: 2004-Sep-17

Publishing Venue

The IP.com Prior Art Database


A variable speed refrigerator has the ability to run at multiple speeds. Some compressors run at multiple discrete (for example 30, 45, 60, 75 Hz) speeds. Others vary "infinitely" within a range of speeds (for example 30-75 Hz, in +/- 1 Hz increments). Either discrete speed variable speed compressors or infinitely variable speed compressors may be applied into a refrigerator (or other device using a compressor Le. central or room A/C or heat pump, dehumidifier, etc) as a discrete speed compressor. This disclosure tells how to control the speed of the compressor/system so that the temperature set point can be achieved.