Boyd N Shelton

Title: Innovations of Boyd N Shelton

Introduction

Boyd N Shelton is a notable inventor based in Boise, ID (US), recognized for his contributions to the field of electrical engineering. He holds a total of 5 patents, showcasing his innovative spirit and technical expertise. His work primarily focuses on advancements in motor control systems and methods for improving performance in various applications.

Latest Patents

Among his latest patents, Shelton has developed a PWM controller and method for reducing torque ripple in multiphase DC motor apparatuses. This invention features a multiphase DC motor equipped with a current sensor and a PWM controller. The controller utilizes a PWM signal at a selected frequency with a variable duty cycle to maintain approximately constant torque by adjusting the duty cycle based on feedback from the current sensor. Additionally, Shelton's soft switching circuit manipulates voltage to generate a controlling PWM signal, which results in linear current slewing during commutation, significantly reducing torque ripple.

Another significant patent involves a bi-polar disk torquing system for a disk drive to free stuck transducers. This system employs a sensorless DC disk spindle motor that is powered by direct current. When the motor is hindered by the stiction bond of transducers, the direct current is reversibly commutated among the motor phases to produce sinusoidal, bi-polar motor torques. This innovative approach amplifies torque to break the stiction bonds, allowing the motor to rotate the disks at a constant speed.

Career Highlights

Boyd N Shelton has made substantial contributions to the field while working at Hewlett-Packard Company. His innovative work has not only advanced technology but has also paved the way for improved efficiency in motor control systems. His patents reflect a deep understanding of electrical engineering principles and a commitment to solving complex problems.

Collaborations

Throughout his career, Shelton has collaborated with notable colleagues, including Charles E Hessing and Robert K Barnes. These collaborations have likely contributed to the development of his innovative patents and have fostered a creative environment for technological advancements.

Conclusion

Boyd N Shelton's contributions to the field of electrical engineering through his patents demonstrate his innovative mindset and technical prowess. His work continues to influence advancements in motor control systems, showcasing the importance of creativity and collaboration in driving technological progress.