Eitaro Oyama

Title: Eitaro Oyama: Innovator in Power Supply Technology

Introduction

Eitaro Oyama is a prominent inventor based in Kyoto, Japan. He has made significant contributions to the field of power supply technology, holding a total of 5 patents. His innovative designs focus on enhancing the efficiency and reliability of switching power supplies.

Latest Patents

One of Oyama's latest patents is a "Step-up switching regulator with soft start circuits." This invention features a switching transistor with a source connected to the ground and a drain linked to the first terminal. An inductor is utilized to connect the second terminal, while an input voltage is applied to the third terminal. The design includes an auxiliary transistor positioned between the second and third terminals, along with two soft start circuits that generate voltages increasing over time. An error amplifier regulates the gate voltage of the auxiliary transistor based on the error voltage between the output voltage and the first soft start voltage.

Another notable patent is the "Switching power supply unit and controller IC thereof." This invention involves a low-voltage operating block and a high-voltage operating block that are controlled at the same soft start voltage during startup. Once the output DC voltage reaches the expected value, the control signal transitions smoothly from the low-voltage to the high-voltage operating block. This design effectively prevents rush current and startup failures associated with switching operations.

Career Highlights

Eitaro Oyama is currently employed at Rohm Co., Ltd., where he continues to develop innovative solutions in power supply technology. His work has significantly impacted the efficiency and performance of electronic devices.

Collaborations

Oyama collaborates with talented coworkers, including Taichi Hoshino and Shinya Karasawa. Their combined expertise fosters a creative environment that drives innovation within their projects.

Conclusion

Eitaro Oyama's contributions to power supply technology through his patents demonstrate his commitment to innovation and excellence. His work continues to influence the industry, paving the way for more efficient electronic solutions.