This inventor holds 2 USPTO granted patents. Top assignee: Samsung Electronics Co., Ltd.. Active years: 1997-1999.
Company Filing History:
Years Active: 1997-1999
Title: Hee Chun: Innovator in Proportional Solenoid Valve Control Systems
Introduction
Hee Chun is a notable inventor based in Seoul, South Korea. He has made significant contributions to the field of hydraulic systems and vehicle technology. With a total of 2 patents, his work focuses on enhancing the efficiency and functionality of solenoid valve control systems.
Latest Patents
One of Hee Chun's latest patents is a proportional solenoid valve control system designed for hydraulic systems in heavy equipment, automatic transmission systems, and fuel injectors in vehicles. This innovative system includes a main circuitry composed of a switching element, proportional solenoid valves, and a current detection resistor. Additionally, it features a control circuit that consists of a current command detection circuit, a rectifier, an offset circuit, a current command adding and limiting circuit, a current detection circuit, a proportional integrator-controller, a pulse width modulation comparator, and an output circuit. This system precisely controls the load currents flowing in the proportional solenoid valves according to the current command.
Another patent by Hee Chun focuses on limiting the current flowing in a solenoid valve when the command current exceeds a user-defined fixed value. The current command limiting circuit ensures that the output remains within predetermined levels, enhancing the reliability and safety of the system.
Career Highlights
Hee Chun is currently employed at Samsung Electronics Co., Ltd., where he continues to innovate and develop advanced technologies. His work has been instrumental in improving the performance of hydraulic systems and vehicle components.
Collaborations
Hee Chun collaborates with talented colleagues, including Yong-ho Kim and Young-sik Lee, who contribute to the innovative environment at Samsung Electronics.
Conclusion
Hee Chun's contributions to the field of proportional solenoid valve control systems demonstrate his commitment to innovation and excellence. His patents reflect a deep understanding of hydraulic technology and its applications in modern vehicles.