Ying-Ping Liu

Title: Innovations by Ying-Ping Liu

Introduction

Ying-Ping Liu is an accomplished inventor based in Bedford, MA (US). He has made significant contributions to the field of electrical engineering, particularly in the development of precision current sources. His innovative work has led to the granting of a patent that showcases his expertise and creativity.

Latest Patents

Ying-Ping Liu holds a patent for an "Analog bipolar current source." This invention discloses a precision current source that includes a voltage setting circuit. The circuit precisely sets the voltage across a range setting resistor to control the current flowing in a load resistance connected in series with the range setting resistor. The voltage setting circuit operates as a function of an input reference voltage. It features an instrumentation amplifier that determines the voltage across the range setting resistor. The difference between this voltage and the reference voltage drives a voltage amplifier, which adjusts to minimize the difference. Other embodiments of the invention include the use of a DC blocking capacitor for AC coupling and various nulling circuits to eliminate charge buildup on the capacitor.

Career Highlights

Ying-Ping Liu is currently employed at Innersea Technology, where he continues to innovate and develop new technologies. His work at the company reflects his commitment to advancing electrical engineering solutions.

Collaborations

Throughout his career, Ying-Ping Liu has collaborated with notable colleagues, including David J Edell and Sean V Sexton. These collaborations have contributed to the success of various projects and innovations.

Conclusion

Ying-Ping Liu's contributions to the field of electrical engineering, particularly through his patent for an analog bipolar current source, highlight his innovative spirit and technical expertise. His work continues to influence advancements in precision current sources and related technologies.