Automatic Pre-Charge Device for High Power Electronic Circuit Contactor Control

An automatic pre-charge device for a high-power contactor comprising:

• a positive supply terminal;
• a negative supply terminal;
• a main output contactor;
• a first electromagnetic contactor;
• a second electromagnetic contactor;
• a control circuit board;
• at least one digital interface;
• the main output contactor comprising a positive main input and a negative main input;
• the control circuit board comprising a positive supply input, a negative supply input, a mains signal output, at least one interface input, and at least one control output;
• the first electromagnetic contactor comprising a first induction coil;
• the second electromagnetic contactor comprising a second induction coil;
• the positive supply terminal being electrically connected to the positive supply input;
• the mains signal output being electronically connected to the positive main input through the first electromagnetic contactor and the second electromagnetic contactor;
• the negative supply terminal being electrically connected to the negative supply input and to the negative main input;
• the at least one digital interface being electronically connected to the at least one interface input;
• the at least one control output being electronically connected to the first electromagnetic contractor and the second electromagnetic contactor;
• the first induction coil and the second induction coil being electrically connected in parallel to each other;
• and
• the mains signal output being electrically connected to the positive main input through the first induction coil and the second induction coil.