Hyunchul Eum

Title: Hyunchul Eum: Innovator in LED Technology

Introduction

Hyunchul Eum is a prominent inventor based in Seoul, South Korea. He has made significant contributions to the field of power conversion and lighting systems, holding a total of 10 patents. His work focuses on enhancing the efficiency and accuracy of light-emitting diode (LED) systems.

Latest Patents

One of his latest patents is titled "Current control for power converter." This invention addresses the need for accurate analog dimming of LEDs, which requires precise control of the power converter supplying current to the LED. The invention compensates for resonant current offsets that can affect the accuracy of the sensed LED level, particularly in discontinuous conduction mode (DCM) operations. Another notable patent is "System and method for shaping input current in light emitting diode (LED) system." This patent describes a circuit that includes a phase angle detector and a current shape controller, which adjusts the rectified input signal based on the detected phase angle, thereby optimizing the lighting system's performance.

Career Highlights

Hyunchul Eum has worked with several notable companies in the semiconductor and lighting industries. He has been associated with Semiconductor Components Industries, LLC and Fairchild Korea Semiconductor Ltd. His experience in these organizations has contributed to his expertise in power conversion technologies.

Collaborations

Throughout his career, Eum has collaborated with talented individuals such as Youngjong Kim and Kuo-Hsien Huang. These collaborations have likely enriched his work and led to innovative solutions in the field of LED technology.

Conclusion

Hyunchul Eum's contributions to LED technology and power conversion are noteworthy. His patents reflect a commitment to improving the efficiency and accuracy of lighting systems. His work continues to influence advancements in the industry.