Patents Assigned to DELTA ELECTRONICS COMPONENT (WU JIANG) LTD.
  • Patent number: 9327939
    Abstract: An elevator electricity feedback device includes a sampling unit, a transmitting unit, and a central processing unit. The sampling unit is electrically connected with an energy supply network of the elevator and the CPU, the transmitting unit is electrically connected with a motor driver of the elevator and electrically connected with the energy supply network through an AC resistor; and the CPU is electrically connected with the transmitting unit. The transmitting unit is electrically connected with the motor driver of the elevator to feed back an energy of the motor driver to the energy supply network when the motor driver is in an energy generating state so that an effect of conserving energy is achieved. In the energy generating state, a DC current produced by the motor driver is converted into AC current which is transmitted to the energy supply network.
    Type: Grant
    Filed: March 18, 2013
    Date of Patent: May 3, 2016
    Assignee: DELTA ELECTRONICS COMPONENT (WU JIANG) LTD.
    Inventors: Liangyi Yen, Shifeng Shao