Kevin L Pettijohn

Title: Kevin L Pettijohn: Innovator in Integrated Circuit Technology

Introduction

Kevin L Pettijohn is a notable inventor based in Goleta, California, with a focus on advancements in integrated circuit technology. He holds a total of four patents that showcase his innovative contributions to the field. His work primarily revolves around enhancing the functionality and efficiency of electronic systems.

Latest Patents

One of Pettijohn's latest patents is for a multipurpose readout integrated circuit with in-cell adaptive capabilities. This invention features an infrared focal plane array (IR-FPA) that includes multiple radiation detectors organized in a two-dimensional array. The multipurpose readout circuit (ROIC) comprises several readout circuit unit cells, each connected to individual radiation detectors to receive electrical signals. The design allows for two operating modes: one that provides a corrected m-frame averaged output signal and another that offers a subframed averaged output signal. This innovation significantly improves the processing of signals generated by radiation detectors.

Another significant patent is the ultra-low power gain circuit (UGC), which implements a unique operational mode of a source follower circuit. This circuit enables programmable gains greater than unity, enhancing the performance of electronic devices. The UGC utilizes a MOSFET with a gate terminal connected to an input capacitance, allowing for efficient charge flow and voltage control. The feedback effect produced by this design influences the voltage transfer function of the MOSFET, achieving a minimum voltage gain of unity while allowing for greater gains through careful selection of capacitor values.

Career Highlights

Throughout his career, Pettijohn has worked with prominent companies such as Santa Barbara Research Center and Raytheon Company. His experience in these organizations has contributed to his expertise in developing cutting-edge technologies in the field of electronics.

Collaborations

Pettijohn has collaborated with notable colleagues, including John D Schlesselmann and John T Caulfield. These partnerships have fostered a creative environment that has led to significant advancements in their respective projects.

Conclusion

Kevin L Pettijohn is a distinguished inventor whose work in integrated circuit technology has made a lasting impact on the field. His innovative patents reflect his commitment to enhancing electronic systems and improving their efficiency. His contributions continue to influence the development of advanced technologies in the industry.