Sangbeom Lee

Title: Sangbeom Lee - Innovator in DC-DC Converter Technology

Introduction

Sangbeom Lee is an inventor based in Suwon-si, South Korea. He has made significant contributions to the field of electrical engineering, particularly in the development of direct current (DC)-DC converters. His innovative approach focuses on enhancing the efficiency and functionality of voltage conversion systems.

Latest Patent Applications

Sangbeom Lee's notable patent application is for a DC-DC converter. This invention includes a voltage conversion circuit that features an inductor and an output capacitor, which converts an input voltage to produce an output voltage. The design incorporates a current detection circuit that detects the inductor current and generates a sensing current during the on-time, energizing the inductor current flowing through the inductor. Additionally, a pulse skip reference voltage generation circuit is included, which generates a sensing voltage and a pulse skip reference voltage using the sensing current. The control circuit determines whether to skip a pulse of the voltage conversion circuit and controls the on-time, utilizing the sensing voltage, the pulse skip reference voltage, and a feedback voltage proportional to the output voltage. The pulse skip reference voltage generation circuit samples the sensing voltage during a reference on-time to generate the pulse skip reference voltage.

Conclusion

Sangbeom Lee is an innovative inventor whose work in DC-DC converter technology showcases his commitment to advancing electrical engineering. His contributions have the potential to significantly impact the efficiency of voltage conversion systems.