Mark Cobb Dahlman

Title: Mark Cobb Dahlman: Innovator in LED Power Supply Technology

Introduction

Mark Cobb Dahlman is an accomplished inventor based in Huntsville, Alabama. He is known for his innovative contributions to the field of power supply technology, particularly in the development of dimmable LED power supplies. His work has significantly impacted the efficiency and functionality of LED lighting systems.

Latest Patents

Dahlman holds a patent for an AC-powered, microprocessor-based, dimming LED power supply. This invention provides a direct current, constant current source from a conventional, phase-controlled 120 VAC, 60 Hz power source. The patent describes a system that utilizes two processes to control dimming. The first process involves using the phase angle of the input voltage to control the duty cycle of a line frequency pulse width modulation (PWM). The second process employs a proportional-current limit adjustment to manage the average current to the LED during the ON time of the line frequency by PWM. This innovative approach reduces flicker and improves audible noise levels generated by the circuit.

Career Highlights

Dahlman is currently employed at Texas Instruments Corporation, where he continues to develop cutting-edge technologies in the field of electronics. His expertise in power supply design has made him a valuable asset to the company and the industry as a whole.

Collaborations

Throughout his career, Dahlman has collaborated with various professionals, including his coworker John Charles Glenn. These collaborations have fostered innovation and contributed to the advancement of technology in their respective fields.

Conclusion

Mark Cobb Dahlman is a notable inventor whose work in LED power supply technology exemplifies innovation and efficiency. His contributions continue to influence the industry and improve lighting solutions for various applications.