Location History:
- Troy, MI (US) (1977 - 1984)
- Fort Wayne, IN (US) (1994)
Company Filing History:
2 out of 3 
2 out of 1,173 
1 out of 77 
Years Active: 1977-1994
Title: The Innovations of Chen Y Lee
Introduction
Chen Y Lee is a notable inventor based in Troy, MI (US), recognized for his contributions to the field of micromachined accelerometers and capacitive transducers. With a total of 6 patents to his name, Lee has made significant advancements in technology that enhance the functionality and accuracy of various devices.
Latest Patents
One of his latest patents is a switched capacitor transducer, which features a micromachined accelerometer. This device includes two capacitors with fixed electrodes and a movable proof mass that acts as a common electrode. The proof mass is displaced under acceleration, which differentially varies the capacitances. A circuit maintains the common electrode at a bias voltage, while a switching circuit alternates between two phases to connect the fixed electrodes to a reference voltage and ground. A charge amplifier detects capacitance changes due to acceleration, producing an output voltage, while an attenuating amplifier generates a common intermediate voltage. Additionally, a compensation servo circuit generates the bias voltage to control an electrostatic balancing force applied to the proof mass.
Another significant patent is the quad-gate demodulator circuit for capacitive transducers. This innovation replaces the diodes in a prior art diode-quad bridge circuit with analog gate devices. This improvement effectively eliminates the temperature and ratiometricity errors associated with the traditional diode-quad circuit.
Career Highlights
Throughout his career, Chen Y Lee has worked with several prominent companies, including C & J Industries, Inc. and The Bendix Corporation. His work in these organizations has allowed him to develop and refine his innovative ideas, contributing to advancements in technology.
Collaborations
Lee has collaborated with notable colleagues such as Kyong M Park and Fred Bolle, further enhancing his work through shared expertise and insights.
Conclusion
Chen Y Lee's contributions to the field of technology through his patents and collaborations highlight his innovative spirit and dedication to advancing engineering solutions. His work continues to influence the development of new technologies in the industry.