Company Filing History:
Years Active: 1987-1990
Title: **John Murphy: Innovator in Control Systems and Power Supply Technologies**
Introduction
John Murphy, an accomplished inventor based in Bishopstown, Ireland, has made significant contributions to the field of electrical engineering. With three patents to his name, he has focused on developing innovative control systems and power supply solutions.
Latest Patents
One of Murphy's latest patents is for **Control Systems for Variable Reluctance Electrical Machines**. This patent outlines a control system designed for reluctance motors that drive a load. The system utilizes a reference waveform generator whose output is influenced by rotor position, as detected by a sensor. The generator provides a relative magnitude for the motor phase current during energization, potentially using sinusoidal reference waveforms. Additionally, a method for determining suitable reference waveform configurations has been proposed, involving monitoring motor operation parameters during testing.
Another notable patent is for **Power Supply Systems for Inductive Elements**. In this system, an inductance is positioned between a voltage rail and earth through a switch. When the switch opens, the current flowing from the inductance is redirected through a diode to a third rail, resulting in a rise in voltage. This system serves as a DC to DC converter and can also be applied to reluctance motor drives by incorporating additional components to manage voltage levels.
Career Highlights
Throughout his career, John Murphy has worked with renowned companies such as Kollmorgen Technologies Corporation and Kollmorgen Corporation. His experience at these organizations has allowed him to hone his skills and contribute meaningfully to various innovative projects.
Collaborations
Murphy has collaborated with several talented professionals, including Francis McMullin and Michael Egan. These partnerships have fostered the exchange of innovative ideas and techniques, enhancing the development of advanced technologies in electrical engineering.
Conclusion
John Murphy's remarkable achievements in the form of multiple patents highlight his dedication to innovation in the fields of control systems and power supply technologies. His work continues to influence the industry and paves the way for future advancements in electrical engineering.