Load sharing apparatus

Load sharing apparatus for load sharing between a plurality of power supplies, the apparatus comprising one or more load sharing modules, each for association with a respective power supply, the or each load sharing module comprising:

• a load determining module for generating a signal which represents a load value corresponding to the power or current supplied by the respective power supply;
• a mode selecting module for selecting a first mode of operation when said load value is below a (first) threshold value and a second mode of operation when said load value equals or exceeds said (first) threshold value;
• and
• a voltage control module for controlling the output voltage of the respective power supply to vary inversely with said load value at a first rate when the first mode is selected, and for controlling the output voltage of the respective power supply to vary inversely with said load value at a second rate when the second mode is selected;
• wherein said second rate is greater than said first rate.