Company Filing History:
Years Active: 2000
Title: Yeong-Sheng Lee: Innovator in Charge Pump Technology
Introduction
Yeong-Sheng Lee is a notable inventor based in Milpitas, California. He has made significant contributions to the field of electrical engineering, particularly in the development of charge pump technology. His innovative work has led to the creation of a patent that enhances the performance of voltage-controlled systems.
Latest Patents
Yeong-Sheng Lee holds a patent for a "High speed differential charge pump apparatus and method using a replica." This invention involves a differential charge pump circuit that utilizes a replica circuit to define the common-mode voltage of the differential output voltages. The design includes a high gain operational amplifier and three MOS transistors, which are configured to replicate half of the charge pump circuit. This configuration allows for stable operation in high-frequency applications, such as phase-locked loop (PLL) and delay-locked loop (DLL) systems.
Career Highlights
Yeong-Sheng Lee is currently employed at Macronix International, where he continues to innovate in the field of charge pump technology. His work has been instrumental in advancing the capabilities of voltage-controlled oscillators and delay circuits. His expertise in high-frequency applications has made him a valuable asset to his company.
Collaborations
Yeong-Sheng Lee collaborates with his coworker, Young-Jen Sun, to further enhance the development of charge pump technologies. Their combined efforts contribute to the ongoing innovation within their field.
Conclusion
Yeong-Sheng Lee's contributions to charge pump technology exemplify the impact of innovative thinking in electrical engineering. His patent and work at Macronix International highlight his commitment to advancing technology in high-frequency applications.