US Patent No. 11,114,257

METHODS AND APPARATUS FOR DC ARC DETECTION/SUPPRESSION


Patent No. 11,114,257
Issue Date September 07, 2021
Title Methods And Apparatus For Dc Arc Detection/suppression
Inventorship Yuanyuan Wu, Canton, MI (US)
Assignee YAZAKI NORTH AMERICA, INC., Canton, MI (US)

Claim of US Patent No. 11,114,257


11. A method for detecting and suppressing DC electric arcs at a component that connects an electric power source to a load and that is configured to be actuable between an open position that impedes flow of electricity and a closed position that enables flow of electricity, the method comprising:electrically connecting an input terminal to a power source side of the component;
electrically connecting an output terminal to a load side of the component;
electrically connecting a detector circuit to the input and output terminals so as to be electrically connected in parallel to the component, the detector circuit being configured to detect a significant voltage spike across the component upon the component actuating between open and closed positions, the detector circuit also being configured to transmit a control signal upon detecting the significant voltage spike, the detector circuit including multiple circuit elements including a diode and a Zener diode, enabling both the detection of the significant voltage spike and the transmission of the control signal, that are directly electrically connected to each other, wherein the Zener diode is directly electrically connected to the diode; and
conducting electricity from the power source side of the component to the load side of the component upon a switching circuit receiving the control signal, wherein
the detector circuit includes a capacitor that is directly electrically connected to the input terminal, and a resistor that is directly electrically connected to the capacitor at a side opposite from the input terminal, the resistor also being directly electrically connected to the output terminal, and
the diode is directly electrically connected to the capacitor at the side opposite from the input terminal.