Ryouma Matsuo

Title: Ryouma Matsuo: Innovator in Power Supply Technology

Introduction

Ryouma Matsuo is a prominent inventor based in Kyoto, Japan. He has made significant contributions to the field of electronic engineering, particularly in the development of power supply units. With a total of 2 patents, Matsuo has demonstrated his expertise and innovative spirit in creating advanced electronic solutions.

Latest Patents

Matsuo's latest patents include a switching power supply unit and an electronic apparatus having a display. The switching power supply unit is designed to provide an output voltage that is controlled to ensure that a first detection voltage matches a first reference voltage. This design incorporates a method for detecting peak voltage at a node of a serially connected coil and switch, which is crucial for over-voltage protection. Notably, this protection is achieved without requiring additional terminals on the switching control IC, even if components like the feedback circuit and rectifying diode become open.

His second patent involves a transistor output circuit and a semiconductor device that includes this circuit. The main driver, consisting of NPN and PNP bipolar transistors connected in series, is activated by a pre-driver output from a first CMOS circuit. An assist circuit, which includes a second CMOS circuit and a current limit resistor, enhances the output of the main driver. This innovation allows for the reduction of short circuit current in the transistor output circuit and facilitates smooth changes in the output signal near both the power-supply potential and ground potential. Additionally, it minimizes electromagnetic noise while providing a sufficiently large amplitude switching output.

Career Highlights

Ryouma Matsuo is currently employed at Rohm Co., Ltd., a leading company in the semiconductor industry. His work at Rohm has allowed him to focus on developing cutting-edge technologies that enhance the efficiency and reliability of electronic devices.

Collaborations

Matsuo collaborates with Taichi Hoshino, a fellow innovator in the field. Their partnership has fostered a creative environment that encourages the development of new technologies and solutions.

Conclusion

Ryouma Matsuo's contributions to power supply technology exemplify his innovative mindset and dedication to advancing electronic engineering. His patents reflect a commitment to improving the functionality and safety of electronic devices.