Patents by Inventor Sang-Keun Jl

Sang-Keun Jl 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).

  • POWER CONTROL METHOD AND APPARATUS FOR TRACKING MAXIMUM POWER POINT IN A PHOTOVOLTAIC SYSTEM
    Publication number: 20120176102
    Abstract: A power control method for tracking a Maximum Power Point (MPP) in a photovoltaic system including a solar cell and a boost converter. The power control method includes finding the MPP by applying a continuous ON/OFF signal to the boost converter as a first control signal for controlling a duty ratio of the boost converter, and maintaining an operating point of the photovoltaic system at the MPP by applying a second control signal for controlling the duty ratio to the boost converter depending on a constant-voltage command. In tracking an MPP in a photovoltaic system, an MPPT algorithm may remain at the MPP, without self oscillation, improving fast dynamic characteristics upon a change in solar radiation.
    Type: Application
    Filed: July 8, 2011
    Publication date: July 12, 2012
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Yong-Woo KIM, Sang-Keun Jl, Sung-Soo Hong, Chung-Wook Roh, Sang-Kyoo Han