Company Filing History:
Years Active: 2000-2011
Title: Innovations of John Philip Parry
Introduction
John Philip Parry is a notable inventor based in Grass Valley, CA (US). He has made significant contributions to the field of electrical engineering, particularly in the development of circuits and methods that enhance energy efficiency. With a total of 5 patents to his name, Parry continues to push the boundaries of innovation.
Latest Patents
One of his latest patents is titled "Method and circuit for charging of super capacitor as energy source for flash diodes." This invention focuses on a circuit and method for charging a super capacitor to an optimal voltage. It aims to provide a desired flash diode current value while minimizing power dissipation in circuit elements other than the flash diode. One embodiment of this patent utilizes periodic sampling of the current through the flash diode, terminating the charging process once the super capacitor reaches a voltage that produces the desired current. Another embodiment features a current regulator in the flash diode firing circuit, maintaining a substantially constant current during the firing process.
Another significant patent by Parry is the "Fractional gain circuit with switched capacitors and smoothed gain transitions for buck voltage regulation." This invention introduces a switch array circuit that enables voltage regulation by bucking a larger input voltage as it declines over time. It employs different fractional gains based on various gain phase arrangements for multiple capacitors. The design includes a common rest phase during the switching between gain phases, which conserves power and minimizes output voltage fluctuations.
Career Highlights
John Philip Parry is currently employed at National Semiconductor Corporation, where he applies his expertise in circuit design and energy efficiency. His work has been instrumental in advancing technologies that are crucial for modern electronic devices.
Collaborations
Throughout his career, Parry has collaborated with talented individuals such as William James McIntyre and Nathanael Griesert. These collaborations have contributed to the successful development of innovative technologies and patents.
Conclusion
John Philip Parry's contributions to the field of electrical engineering are noteworthy. His innovative patents reflect a commitment to enhancing energy efficiency and advancing technology. His work continues to inspire future innovations in the industry.