Energy-efficient refrigerator control system

An energy-efficient refrigerator having a plurality of compartments cooled to respective temperatures, the refrigerator control system comprising:

• a refrigerator control system for generating refrigerator control signals responsive to cooling demands of the respective compartments;
• a plurality of refrigeration apparatus components, said components comprising an evaporator apparatus and a variable speed compressor, said components being respectively coupled to said control system and independently controlled thereby so as to collectively cool said plurality of compartments to said respective temperatures;
• a multiplex damper system disposed so as to direct the cooling-air flow from said refrigeration apparatus to selected refrigerator compartments, said multiplex damper system being coupled to said refrigerator control system;
• said multiplex damper system comprising a single movable control damper mounted in a refrigeration apparatus cooling-air passage such that said control damper is adapted to be selectively disposed in a plurality of respective air flow positions responsive to said refrigerator control signals for controlling cooling-air flow, said respective air flow positions further including an "off" position in which no air flow communication is provided for cooling air passing from said refrigeration apparatus to any of said compartments.