Company Filing History:
Years Active: 1987-1989
Title: Frank M. Magalhaes: Innovator in Power Conversion Technology
Introduction
Frank M. Magalhaes is a notable inventor based in Three Bridges, NJ (US). He has made significant contributions to the field of power conversion technology, holding 2 patents that showcase his innovative approach to electrical engineering.
Latest Patents
One of his latest patents is the "Zero Voltage Switching Half Bridge Resonant Converter." This invention is a DC to DC converter that combines a half-bridge inverter with a resonant rectifier through a series LC circuit, conducting power at a substantially single frequency. The energy stored in the parasitic capacitors of the two power switches is transferred from one capacitor to the other, enhancing operational efficiency. This transfer is controlled by managing the relative phase between the voltage and current in the inverter section.
Another significant patent is the "Resonant Rectifier Circuit." This self-oscillating power converter utilizes a MOSFET power transistor switch, with its output electrode coupled to a tuned network that limits the voltage waveform across the power switch to periodic unipolar pulses. The transistor switch operates at a high radio frequency, allowing its drain to gate interelectrode capacitance to serve as the sole oscillatory sustaining feedback path of the converter. A reactive network, which is inductive at the operating frequency, couples the gate to source electrodes of the transistor switch and includes a variable capacitance for adjusting the overall reactance. This adjustment helps regulate the converter's switching frequency, ensuring voltage regulation.
Career Highlights
Frank M. Magalhaes has worked at American Telephone & Telegraph Co. and AT&T Bell Laboratories, where he has been instrumental in developing advanced power conversion technologies. His work has significantly impacted the efficiency and performance of electrical systems.
Collaborations
Throughout his career, Frank has collaborated with notable coworkers, including Norman Gerard Ziesse and Roman Ostapiak. These collaborations have contributed to the advancement of innovative technologies in the field.
Conclusion
Frank M. Magalhaes is a distinguished inventor whose work in power conversion technology has led to significant advancements in efficiency and performance. His contributions continue to influence the field of electrical engineering.