Otward M Mueller

Title: Innovations by Otward M Mueller

Introduction

Otward M Mueller is a notable inventor based in Shrewsbury, MA (US). He has made significant contributions to the field of electronic power conversion, holding a total of 5 patents. His work primarily focuses on cryogenically cooled power electronics, which have applications in various energy systems.

Latest Patents

One of his latest patents is for a cryogenically-cooled switching circuit. This electronic power conversion circuit utilizes cryogenically cooled MOSFET power switching devices arranged in a switch-mode configuration. It responds to control signals to reduce capacitive discharge and commutation losses by managing the deadtime of the MOSFET devices. When one MOSFET is switched off, the opposing MOSFET is activated after a brief deadtime, serving as a commutating device rather than relying on the intrinsic drain-source diode. This innovation can include a half-bridge circuit or combinations thereof.

Another significant patent involves a control circuit for cryogenically-cooled power electronics. This control circuit generates signals to manage the sequence of selected input signals across the terminals of a polyphase switching conversion circuit. It features switching elements that are galvanically isolated from the input signals, ensuring that control signals remain electrically isolated from the switching devices. The control circuit is designed to have a topology similar to that of the switching converter and includes conventional switching diodes along with a light-generating device that is optically coupled to a light sensor. This setup allows for effective control of the switching devices.

Career Highlights

Otward has worked with prominent companies in the field, including American Superconductor Corporation and American Superconducting Corporation. His experience in these organizations has contributed to his expertise in cryogenic technologies and power conversion systems.

Collaborations

Some of his notable coworkers include Calman Gold and Ellery F Schempp. Their collaboration has likely fostered innovative ideas and advancements in the field of superconducting technologies.

Conclusion

Otward M Mueller's contributions to cryogenically cooled power electronics and his innovative patents highlight his significant role in advancing electronic power conversion technologies. His work continues to influence the industry and pave the way for future innovations.