Akira Haraguchi

Title: Akira Haraguchi: Innovator in Charge Control and DC/DC Converter Technologies

Introduction

Akira Haraguchi is a notable inventor based in Kasugai, Japan. He has made significant contributions to the field of electrical engineering, particularly in charge control systems and DC/DC converters. With a total of 10 patents to his name, Haraguchi's work has had a substantial impact on battery management and power conversion technologies.

Latest Patents

One of Haraguchi's latest patents is a charge control system that maintains a constant input voltage supplied to a battery pack. This innovative circuit includes a transistor positioned on the charging path between the charging terminal and the battery. It features an input voltage detecting circuit that monitors the potential at a point on the charging path, allowing for precise control of the transistor's ON resistance. This ensures efficient charging by toggling between conductive and non-conductive states based on the detected voltage.

Another significant patent is a control circuit for a DC/DC converter. This circuit is designed to regulate the output voltage of the converter effectively. It incorporates a pulse signal generation circuit that produces a pulse signal for output voltage control. Additionally, a drive signal generation circuit creates first and second drive signals, enabling the main and synchronous switching elements to operate alternately at different timings. This design enhances the ON-duty characteristics of the main switching element, improving overall efficiency.

Career Highlights

Throughout his career, Akira Haraguchi has worked with prominent companies such as Fujitsu Corporation and Fujitsu Microelectronics Limited. His experience in these organizations has allowed him to develop and refine his innovative technologies, contributing to advancements in the industry.

Collaborations

Haraguchi has collaborated with several talented individuals, including Takashi Matsumoto and Kyuichi Takimoto. These partnerships have fostered a creative environment that has led to the development of groundbreaking technologies.

Conclusion

Akira Haraguchi's contributions to charge control and DC/DC converter technologies highlight his role as a leading inventor in the field. His innovative patents and collaborations with industry professionals underscore his commitment to advancing electrical engineering. Haraguchi's work continues to influence the development of efficient power management solutions.