Fumiaki Miyamitsu

Title: Fumiaki Miyamitsu: Innovator in Voltage Supply Circuits

Introduction

Fumiaki Miyamitsu is a notable inventor based in Kunisaki, Japan. He has made significant contributions to the field of electrical engineering, particularly in the development of voltage supply circuits. With a total of 3 patents to his name, Miyamitsu's work focuses on enhancing the efficiency and performance of charge pump circuits.

Latest Patents

Miyamitsu's latest patents include a charge pump with reduced noise spikes. This invention aims to suppress the generation of current spikes in the power source current during operation. It reduces noise, simplifies circuit configuration, and decreases costs. The charge pump driver operates with a clock signal at a prescribed frequency, allowing current sources to output driving currents. Capacitors are alternately charged or discharged, resulting in a boosted voltage higher than the power source voltage at the output terminal. This innovation effectively reduces spike noise in the boosting operation, minimizing the influence on other analog circuits.

Another significant patent is a booster circuit designed to reduce power consumption and switching noise. This circuit features gate circuits and an auxiliary control circuit. The charging and discharging circuits can operate independently or together, enhancing the drivability of gate circuits. This design shortens the charging time of capacitors in charge-pump circuits while reducing power consumption and noise during steady-state operation.

Career Highlights

Fumiaki Miyamitsu is currently employed at Texas Instruments Corporation, where he continues to innovate in the field of voltage supply circuits. His work has been instrumental in advancing the technology used in various electronic devices.

Collaborations

Miyamitsu collaborates with Eizo Fukui, contributing to the development of cutting-edge technologies in their field.

Conclusion

Fumiaki Miyamitsu's contributions to voltage supply circuits demonstrate his commitment to innovation and efficiency in electrical engineering. His patents reflect a deep understanding of circuit design and a dedication to improving electronic performance.