Location History:
- Eastleigh, GB (1983)
- Chandlers Ford, GB (1988)
Company Filing History:
Years Active: 1983-1988
Title: The Innovations of John G Ramage
Introduction
John G Ramage is a notable inventor based in Eastleigh, GB. He has made significant contributions to the field of electrical engineering, particularly in power switching circuits and motor control systems. With a total of 2 patents, Ramage's work reflects his innovative approach to solving complex engineering challenges.
Latest Patents
One of Ramage's latest patents is the "Transformer Coupled Power Switching Circuit." This invention involves a power switching circuit designed to switch power repetitively to a load at a relatively low frequency. It utilizes a power switching device driven across an isolating transformer interface. The drive signals are high-frequency pulse signals modulated with low-frequency switching information, allowing for isolated driving with fast switching edges while requiring only a small transformer. Additionally, power for the detection circuit is derived by rectifying the high-frequency signals induced in the transformer secondary.
Another significant patent is the "Motor Control System for a Single Phase Induction Motor." This system employs power line-assisted starting and operates at a frequency higher than the power line frequency from an electronically generated inverter supply. The inverter provides an out-of-phase mains frequency signal to the run winding during starting, creating the necessary rotating magnetic field. Once the motor starts, the power line supply is disconnected from the start winding, and the inverter supply frequency is gradually increased to achieve the desired operating speed. This innovative system eliminates the need for phase-shifting capacitors, optimizing the run winding for running conditions.
Career Highlights
John G Ramage is currently associated with International Business Machines Corporation (IBM), where he continues to develop and refine his innovative ideas. His work at IBM has allowed him to collaborate with other talented engineers and contribute to cutting-edge technology.
Collaborations
Ramage has worked alongside notable colleagues such as Brian P Fenton and Robert Duncan Commander. Their collaborative efforts have further advanced the projects they have undertaken together.
Conclusion
John G Ramage's contributions to electrical engineering through his patents demonstrate his innovative spirit and technical expertise. His work continues to influence the field, showcasing the importance of creativity in engineering solutions.