Patents by Inventor Joonsij An

Joonsij An 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 DEVICE AND AIR CONDITIONER INCLUDING THE SAME
    Publication number: 20150180384
    Abstract: A motor driving device includes a rectifier to rectify inputted alternating current (AC) power, a boost converter to boost and to output the power rectified by the rectifier, and an inverter including a plurality of switching devices to output converted AC power to a motor using a voltage from the boost converter. Accordingly, a voltage utilization ratio of a voltage input to an inverter in the motor driving device using a low-capacitance capacitor is enhanced.
    Type: Application
    Filed: December 24, 2014
    Publication date: June 25, 2015
    Inventors: Joonsij An, Sangyoung Kim, Taeyoung Park, Kyungmin Kim