Method and system for controlling input voltage in electric charges

A system for controlling input voltage (1) in electric charges (5), the electric charges (5) comprising an arrangement of coils that are selectively actuated for operation at different levels of input voltage (1), the system comprising at least:

• one processing unit (3) and
• a set of output switches (4),
• wherein the processing unit (3) is configured for detecting the input voltage (1) and actuating the set of output switches (4) to selectively modify the arrangement of the coils in the electric charges (5), so that the electric charge (5) will operate at the input voltage level (1) detected by the processing unit (3), the system further comprising:
• a protection sensor (7) capable of supplying values with information on at least one of current, voltage and temperature to the processing unit (3);
• and
• a control reference unit (8) capable of supplying references of at least one of current, voltage and temperature to the processing unit (3), the reference control values being compared to values supplied by the protection sensor (7) for protection of the electric charges (5).

A method for controlling input voltage (1) in electric charges (5), the electric charges (5) having an arrangement of coils that can be selectively actuated for operation at different levels of input voltage (1), which comprises the steps of:

• Step 1:
• detecting the input voltage (1);
• Step 2:
• actuating the set of output switches (4), as a function of the input voltage (1) detected in Step 1;
• Step 3:
• modifying the arrangement of coils in the electric charges (5), for operation at the level of input voltage (1) detected by the Step 1.