Company Filing History:
Years Active: 2008-2011
Title: John W. Branch: Innovator in Temperature Sensing Technology
Introduction
John W. Branch is a notable inventor based in Seattle, WA, recognized for his contributions to temperature sensing technology. He holds a total of 3 patents that showcase his innovative approach to improving the accuracy and efficiency of temperature measurement systems.
Latest Patents
One of his latest patents is focused on "Beta variation cancellation in temperature sensors." This invention presents an apparatus and method for canceling variations in the beta for a bipolar junction transistor. The goal is to utilize the diode equation to accurately measure the temperature of the transistor based on a ratio of two target collector currents and two measurements of the base-emitter voltage. The process involves measuring and storing the base-emitter voltage when the determined collector current aligns with one of the target collector currents. An analog feedback circuit is employed to adjust the collector current, which may include a sample and hold component to enhance power efficiency and minimize noise. Additionally, a digital circuit can be used to achieve the same goal, allowing for the possibility of the transistor being located in a different integrated circuit.
Career Highlights
John W. Branch is currently associated with National Semiconductor Corporation, where he continues to develop innovative solutions in the field of semiconductor technology. His work has significantly impacted the way temperature sensors operate, leading to more reliable and efficient devices.
Collaborations
He collaborates with talented professionals in his field, including his coworker Mehmet Aslan, to further advance the technology and applications of temperature sensing.
Conclusion
John W. Branch's contributions to temperature sensing technology through his patents and work at National Semiconductor Corporation highlight his role as an influential inventor. His innovative methods for improving temperature measurement accuracy continue to shape the industry.