This inventor holds 1 USPTO granted patent. Top assignee: Siliconsystems, Inc.. Active years: 1995.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 1995
Title: Innovations of John Parry in Current Limiting Circuits
Introduction
John Parry is an accomplished inventor based in Grass Valley, CA (US). He has made significant contributions to the field of electrical engineering, particularly in the development of current limiting circuits for IGBT spark drive applications. His innovative approach has led to the creation of a patent that enhances the performance and stability of power transistors.
Latest Patents
John Parry holds a patent for a "Current limit circuit for IGBT spark drive applications." This invention presents an improved method for current limiting applications that control the current through MOSFETs or IGBTs. The design utilizes an amplifier with a single, high-frequency pole to effectively drive the large gate capacitance of a power MOSFET or IGBT. The current flowing through the power transistor generates a negative feedback voltage in a sensing resistor. This feedback voltage is then compared with a reference voltage to determine the output voltage of the amplifier. The result is greater stability for driving IGBT transistors, with the frequency response being dependent solely on the poles generated by the power transistor and its load. The current in the transistor ramps up to a value determined by the reference voltage and settles to a constant value with minimal overshoot or oscillation. John Parry's innovative design has led to 1 patent in this area.
Career Highlights
John Parry is currently employed at Siliconsystems, Inc., where he continues to work on advancements in electrical engineering. His expertise in current limiting circuits has positioned him as a valuable asset to his team and the company.
Collaborations
One of his notable coworkers is Richard D Davis, with whom he collaborates on various projects within the company.
Conclusion
John Parry's contributions to the field of electrical engineering, particularly through his patent on current limiting circuits, demonstrate his innovative spirit and commitment to advancing technology. His work continues to influence the performance of power transistors in various applications.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile