A major problem of our time concerns electrical energy. If the industry represents a large part of electricity consumption, the domestic sector is no exception. The appliance industry is developing in the country at the rate of increase in living standards of residents. Appliances integrate more and more electronic functions both consuming energy in active mode than in "sleep" mode. In an effort to reduce the energy consumed by appliances, it is important to use all the possibilities that can provide the electronics to develop new products with low energy consumption, while providing added value in terms protective and cost reduction of a household equipment. We focused on finding solutions to minimize the energy of the switches AC type triacs or thyristors. We analyzed all solutions for controlling a triac and reduce its energy control. From these analyzes, we developed a bidirectional structure for current and voltage TRIAC type, controlled by means of a voltage. The second solution implemented to reduce consumption control, is to use two thyristors sensitive (low energy control) connected in antiparallel while solving the reference problem with an innovative solution. The third solution was to study a bidirectional switch current and voltage from which the state is self perpetuating (Bistable). Finally, we quantified the energy savings that could be made by introducing electronics to reduce power consumption in a refrigerator.
