Canh Cong Duong

Title: Innovations of Canh Cong Duong

Introduction

Canh Cong Duong is an accomplished inventor based in Salem, MA (US). He has made significant contributions to the field of electrical engineering, particularly in the development of electronic ballasts.

Latest Patents

Duong holds a patent for an "Electronic ballast and method for arc straightening." This invention involves a method and apparatus for controlling a lamp ballast that utilizes a DC-DC converter. The design features first and second MOSFETs that act as switches, alternately connecting a DC power source to a power transformer. The output from the transformer is then connected to a DC-AC inverter that drives the lamp. The MOSFETs in the DC-DC converter are alternately opened and closed at a frequency that is swept repeatedly between predetermined minimum and maximum frequencies. A microcontroller-based feedback element is employed to determine the instantaneous power consumption by the lamp. This feedback mechanism controls the MOSFETs through a pulse width modulator, continuously adjusting the duty cycle of the signals driving the gates of the MOSFETs to maintain a desired level of power consumption.

Career Highlights

Duong is currently employed at Osram Sylvania Inc., where he continues to innovate and develop new technologies. His work has had a significant impact on the efficiency and functionality of lighting systems.

Collaborations

One of his notable coworkers is Ronald M. Fiorello, with whom he has collaborated on various projects within the company.

Conclusion

Canh Cong Duong's contributions to the field of electrical engineering, particularly through his patented innovations, demonstrate his commitment to advancing technology in lighting systems. His work continues to influence the industry and improve energy efficiency.