Touch control supply system for an electrical device, method of implementation and applications

A feed system for at least one electric unit, comprising:

• a power line connecting the at least one electric unit to an electric power source;
• a module comprising a static switch coupled to the power line and to be selectably open or closed and an electronic control circuit, coupled to the static switch and having a detection input;
• the electronic control circuit generating control pulses of the static switch as a function of leakage currents of low intensity detected at the detection input;
• a support, comprising an electrically insulating material, coupled to the detection input;
• at least one zone formed in the support by chemical treatment to reduce an impedance of the zone to conduct leakage currents;
• the at least one zone being electrically coupled to the detection input and including an access portion to be touched by a user to generate the leakage currents;
• the electronic control circuit operating the at least one electric unit in accordance with the leakage currents generated.

A lamp controllable by touch comprising:

• a hollow base comprising an electrically insulating material, the electrically insulating material being chemically treated to form a treated zone in which an impedance over an entire interior surface except a bottom portion is reduced;
• a lighting element carried by the hollow base;
• an electrical feed cable to couple the lighting element to an electrical outlet;
• a module comprising a static switch and a power dimmer coupled to the lighting element, and an electronic control circuit, comprising a detection input, controlling the static switch and power dimmer as a function of leakage currents detected at the detection input;
• the module being electrically coupled to the treated zone;
• the detection input coupled to a leakage current variation detector that inhibits detection of leakage currents at the detection input when a leakage current variation is below a predetermined threshold.

A home automation system for feeding at least one electrical unit comprising:

• an electric feed line, coupled to the at least one electrical unit, carried by one or more walls of a building;
• each of the one or more walls of the building comprising an insulating material;
• at least one module comprising a switch and a power dimmer coupled to the at least one electrical unit, and an electrical control circuit, comprising a detection input, controlling the switch and power dimmer as a function of leakage currents detected at the detection input;
• at least one of the one or more walls of the building being chemically treated to form a treated strip having a reduced impedance to conduct the leakage currents;
• the treated strip comprising a portion adjacent the electronic circuit and electrically coupled to the detection input;
• the portion, to be touched by a user, generating the leakage currents;
• a leakage current variation detector, coupled between the portion and the detection input, detecting variations in the leakage current and inhibiting the detection of leakage current at the detection input when the leakage current variation is below a predetermined threshold.