Company Filing History:
Years Active: 1990-1992
Title: Innovations by Joseph H. Mulkern
Introduction
Joseph H. Mulkern is a notable inventor based in Saint Paul, MN (US). He has made significant contributions to the field of power conversion technology, holding two patents that showcase his innovative approach to electrical engineering.
Latest Patents
Mulkern's latest patents include the "Interleaved Bridge Converter" and the "Variable Resonance Regulator for Power Supply." The Interleaved Bridge Converter is a DC to DC power converter that features an input switching circuit, an input capacitor, a transformer, and an output rectifying switching circuit. This design utilizes a minimum of four transistors to create bi-directional currents in both primary windings, allowing for a reduction in the volume of the magnetic element and coils for a given output power. The converter's compact design enables it to be mounted on a circuit board, facilitating a practical embodiment of a distributed power processing system.
The Variable Resonance Regulator for Power Supply is particularly suited for A.C. distributed power systems. It provides independent voltage regulation at multiple frequency-responsive power supply modules. The regulator circuit is tuned using an LC resonant circuit, which determines its operating frequency. This innovative design allows for corrective changes in output voltage based on the sensed D.C. output voltage, ensuring both voltage and current regulation.
Career Highlights
Joseph H. Mulkern has built a successful career at Unisys Corporation, where he has applied his expertise in power systems and electrical engineering. His work has contributed to advancements in power conversion technologies, making significant impacts in the industry.
Collaborations
Mulkern has collaborated with notable colleagues, including David S. Lo and Christopher Paul Henze. Their combined efforts have fostered innovation and development in their respective fields.
Conclusion
Joseph H. Mulkern's contributions to power conversion technology through his patents reflect his dedication to innovation in electrical engineering. His work continues to influence the industry and inspire future advancements.