Company Filing History:
Years Active: 1988-1999
Title: **Innovator Spotlight: William J Scheraga**
Introduction
William J Scheraga, based in Warwick, Rhode Island, is an accomplished inventor with a notable portfolio of four patents. His innovative contributions focus primarily on advancements in circuit design, particularly relating to PNP transistors.
Latest Patents
Among his most recent innovations are two significant patents:
1. **Lateral PNP Fast Turn-Off Circuit** - This control circuit is designed to provide expedited turn-off of a PNP transistor while offering output transient protection. One embodiment of this invention features a current amplifier connected to a positive voltage supply line, which supplies the necessary current to the base of a PNP switching transistor. This current amplifier works efficiently by producing a transitory reverse current, aided by transient blocking junctions that prevent undesired current flow caused by voltage transients.
2. **Lateral PNP Fast Turn-On Circuit** - This invention aims at enhancing the turn-on speed of a PNP transistor. It incorporates a current amplifier in parallel with a current source that boosts the charging current delivered to the transistor's base. The design includes an NPN transistor for providing the drive current boost, ensuring that the charging process is both fast and efficient through well-integrated capacitor and diode mechanisms.
Career Highlights
William J Scheraga is currently associated with Cherry Semiconductor Corporation, where he leverages his expertise in electronic circuit innovations. His role has involved significant contributions to enhancing semiconductor technologies, particularly focusing on improving the performance of PNP transistors through his patented designs.
Collaborations
While specific collaborations have not been detailed, working at Cherry Semiconductor Corporation suggests that Scheraga is likely engaged with other talented professionals in the field of semiconductor technology. His patents indicate a collaborative environment where innovative ideas are fostered and brought to fruition.
Conclusion
William J Scheraga exemplifies the innovative spirit of modern engineering, significantly impacting the field of semiconductor technology through his advanced circuit designs. His continued work is expected to push the boundaries of what is possible with PNP transistors, showcasing his dedication to driving technological progress.