Method for adapting an electrical circuit with a controlling device

An electrical circuit energized by a first voltage power supply comprising:

• a first user device having two terminals between which the first voltage is configured to be applied, the first user device being configured to switch between at least an on-state and an off-state,
• a second user device having two terminals between which a second voltage is configure to be applied, the second user device being configured to be connected in series with the first user device, the second user device comprising an actuator configured to be activated so as to make the first user device switch between the at least an on-state and an off-state;
• a controlling device intended to be connected in parallel of the first user device and configured to:
• absorb a leakage current below a first predetermined threshold flowing through the electrical circuit, and
• control the voltage between the terminals of the controlling device, so as to ensure that the second user device is supplied with the second voltage or current between its terminals.

A method for adapting an electrical circuit energized by a first voltage power supply comprising a first user device having two terminals between which the first voltage is configured to be applied, the first user device being configured to switch between at least an on-state and an off-state, the method comprising:

• switching the power supply of the electrical circuit off,
• connecting a second user device on the electrical circuit in series with the first user device and configured to be energized by a second voltage or current power supply, the second user device comprising an actuator configured to be activated so as to make the first user device switch between the at least an on-state and an off-state;
• connecting a controlling device in parallel of the first user device (12), the controlling device being configured to:
• absorb a leakage current below a first predetermined threshold flowing through the electrical circuit, and
• control the voltage between the terminals of the controlling device, so as to ensure that the second user device is supplied with the second voltage or current between its terminals,
• adapting the voltage between the terminals of the second user device,
• switching the power supply of the electrical circuit on.