Company Filing History:
Years Active: 1997-1999
Title: Innovations of Davood B Motlagh
Introduction
Davood B Motlagh is an accomplished inventor based in Arlington, TX (US). He has made significant contributions to the field of electrical engineering, particularly in the development of ballast shut-down circuits. With a total of two patents to his name, his work demonstrates a commitment to enhancing safety and efficiency in lighting systems.
Latest Patents
One of Davood B Motlagh's latest patents focuses on a ballast shut-down circuit responsive to an unbalanced load condition. This invention detects abnormal or unbalanced load operating conditions in single and two-lamp ballast circuits. It utilizes feedback voltage signals that are proportional to the flow of current through the cathodes of each lamp. The analog feedback signals are combined algebraically by a summing circuit, producing a null value for normal lamp operation and a non-zero value for abnormal cathode current flow. This non-zero value is then compared with a reference value to generate a shut-down signal. In one embodiment, the cathode currents are sensed by primary windings of a toroid transformer, with feedback signals representing the magnetic flux components generated by the cathode current flow. Another embodiment involves feedback signals derived from the positive and negative portions of an asymmetrical waveform across the power input pins of a lamp. These signals are compared and summed to produce an output voltage that triggers a shut-down signal if the energy content exceeds a predetermined threshold.
Career Highlights
Davood B Motlagh is currently employed at The Genlyte Group Incorporated, where he continues to innovate and develop new technologies. His work has been instrumental in advancing the safety and reliability of lighting systems.
Collaborations
Davood collaborates with Raymond T Griffin, contributing to the development of innovative solutions in their field.
Conclusion
Davood B Motlagh's contributions to electrical engineering, particularly in ballast shut-down circuits, highlight his innovative spirit and dedication to improving safety in lighting systems. His patents reflect a deep understanding of electrical principles and a commitment to advancing technology.