Location History:
- Leeds, GB (1997 - 1999)
- Ilkley, GB (1997 - 1999)
- W. Yorkshire, GB (1999)
- Harrogate, GB (1999)
Company Filing History:
10 out of 119 
1 out of 2,301 
Years Active: 1997-1999
Title: The Innovative Journey of David Mark Sugden
Introduction
David Mark Sugden, an accomplished inventor based in Ilkley, GB, holds an impressive portfolio of 10 patents. His work primarily focuses on advancements in electrical engineering, particularly in the design and control of electrical machines.
Latest Patents
Two of his latest patents exemplify his innovative contributions to the field. The first is a "Commutation Controller" devised for a switched reluctance machine. This controller utilizes separate timer circuits for firing signals in both motoring and generating modes. Each timer consists of a ramp generator and comparators that define the ON- and OFF-angle based on preset thresholds. A multiplexer selects the appropriate timing output, enabling smooth transitions between operational modes without timing errors.
The second patent, a "Demodulator for a Pulse Width Modulated Signal and Method," introduces a unique approach to accurately determine the duty cycle of pulse width modulated (PWM) signals. This demodulator features a counter that counts in opposite directions depending on the signal state. Clocked by an output from a frequency multiplier, it allows for the duty ratio computation, irrespective of the PWM signal frequency.
Career Highlights
Throughout his career, Sugden has worked with prominent companies in the engineering sector, including Switched Reluctance Drives Limited and Emerson Electric Company. His role in these organizations has fostered technological advancements in electrical systems and machines.
Collaborations
David Mark Sugden has collaborated with industry professionals like Andrew Martin Roberts and Phillip G Langhorst. These collaborations have enriched his work and contributed to successful patent developments, showcasing the importance of teamwork in innovation.
Conclusion
David Mark Sugden's contributions to the field of electrical engineering demonstrate his commitment to innovation. Through his patents and career endeavors, he continues to inspire the next generation of inventors and engineers, paving the way for future technological advancements.