This inventor holds 1 USPTO granted patent. Top assignee: Lucent Technologies Inc.. Active years: 2001.
Company Filing History:
Years Active: 2001
Title: Haoyan Chen: Innovator in Actuator Driver Circuits
Introduction
Haoyan Chen is a notable inventor based in Eagan, MN (US). He has made significant contributions to the field of actuator driver circuits, showcasing his expertise and innovative spirit. His work has led to the development of a patent that enhances the functionality of voice coil motors.
Latest Patents
Haoyan Chen holds a patent for an actuator driver circuit. This circuit includes an H-bridge featuring sense and power FETs designed to drive a voice coil motor. A differential amplifier configuration is connected to the H-bridge, while a bias circuit regulates the bias current through the FETs. The design also incorporates a common mode feedback circuit connected to the voice coil motor, providing essential feedback to the differential amplifier configuration. The FETs, which may be unmatched, are operated to achieve class AB operation. This innovative approach enhances the performance and efficiency of actuator systems.
Career Highlights
Haoyan Chen is currently employed at Lucent Technologies Inc., where he continues to develop cutting-edge technologies. His work in actuator driver circuits exemplifies his commitment to advancing engineering solutions.
Collaborations
Throughout his career, Haoyan has collaborated with esteemed colleagues, including David W Kelly and Robert Alan Norman. These partnerships have contributed to the successful development of innovative technologies in their field.
Conclusion
Haoyan Chen's contributions to actuator driver circuits demonstrate his innovative capabilities and dedication to engineering excellence. His patent reflects a significant advancement in the technology of voice coil motors, showcasing the impact of his work in the industry.