Patents by Inventor Wen-Han LAN

Wen-Han LAN has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • MOTOR DRIVING CIRCUIT
    Publication number: 20150303856
    Abstract: A motor driving circuit is provided. The motor driving circuit includes an else inverter and a self inverter. The else inverter includes an else-inverter rectifier and an else-inverter driving circuit. The self inverter includes a self-inverter driving circuit and a soft-start protection circuit. The soft-start protection circuit includes a first and a second protection diodes, a self-inverter capacitor and a self-inverter soft-start circuit. The first protection diode is electrically connected to a first else-inverter-rectifier output and a first self-inverter-driving-circuit input. The second protection diode is electrically connected to a second else-inverter-rectifier output and a second self-inverter-driving-circuit output. The self-inverter soft-start circuit and the self-inverter capacitor are connected in series between a first cathode and a second anode of the first and the second protection diodes.
    Type: Application
    Filed: February 4, 2015
    Publication date: October 22, 2015
    Inventors: Wen-Han LAN, Chia-Hao WU, Chih-Chung SHIH, Tsung-Yu LIN
  • Motor driving device for protecting inrush current
    Patent number: 9035586
    Abstract: A motor driving device for protecting inrush current is disclosed, where the motor driving device includes a resistor, a capacitor, an electronic switch, a rectifier and a driving circuit. The capacitor is connected to the resistor in series. The electronic switch is connected to the resistor in parallel. The rectifier is connected to the resistor and the capacitor in parallel and is electrically connected to a power source. The driving circuit is connected to the resistor and the capacitor in parallel and is electrically connected to a motor.
    Type: Grant
    Filed: February 7, 2013
    Date of Patent: May 19, 2015
    Assignee: DELTA ELECTRONICS, INC.
    Inventor: Wen-Han Lan
  • MOTOR DRIVING DEVICE FOR PROTECTING INRUSH CURRENT
    Publication number: 20130300326
    Abstract: A motor driving device for protecting inrush current is disclosed, where the motor driving device includes a resistor, a capacitor, an electronic switch, a rectifier and a driving circuit. The capacitor is connected to the resistor in series. The electronic switch is connected to the resistor in parallel. The rectifier is connected to the resistor and the capacitor in parallel and is electrically connected to a power source. The driving circuit is connected to the resistor and the capacitor in parallel and is electrically connected to a motor.
    Type: Application
    Filed: February 7, 2013
    Publication date: November 14, 2013
    Applicant: DELTA ELECTRONICS, INC.
    Inventor: Wen-Han LAN