Donald George Stupeck

Title: The Innovations of Donald George Stupeck

Introduction

Donald George Stupeck is an accomplished inventor based in Laguna Hills, California. He holds a total of four patents, showcasing his expertise in the field of technology and engineering. His innovative contributions have significantly impacted the development of disk drive systems.

Latest Patents

One of Stupeck's latest patents is the "Hardware velocity limit control system." This invention is a self-contained disk drive actuator velocity controller that operates independently of the disk drive microprocessor. It places the actuator into a velocity mode to achieve a pre-programmed velocity during various operational states, such as parking, unparking, power interruptions, or microprocessor malfunctions. The system is designed to respond to timeout signals and supply power loss, ensuring reliable actuator performance. Additionally, it monitors the back electromotive force (BEMF) generated by the actuator motor coil, adjusting the gain of the actuator motor driver to reach the target velocity accurately.

Another significant patent is the "Method and apparatus for providing thermal feedback between an analog." This invention involves a disk drive that integrates a microprocessor, a digital controller chip, and an analog power chip. The power chip operates under both gross and fine control to manage the supply voltage to the spindle motor. The microprocessor sends digital control signals to the controller chip, which in turn sends a pulse-width modulation (PWM) signal to the power chip. The power chip generates signals that represent the supply voltage magnitude and thermal conditions, allowing for efficient control of the motor's operation.

Career Highlights

Throughout his career, Stupeck has worked with notable companies, including Western Digital Corporation and Western Digital (Sea), Pte., Ltd. His experience in these organizations has contributed to his development as an inventor and innovator in the technology sector.

Collaborations

Stupeck has collaborated with several professionals in his field, including Raffi Codilian and Charles Royston Patton III. These collaborations have likely enriched his work and led to further advancements in his inventions.

Conclusion

Donald George Stupeck's contributions to technology through his patents demonstrate his innovative spirit and technical expertise. His work continues to influence the development of disk drive systems, showcasing the importance of inventors in advancing technology.