Hirofumi Dohgome

Title: Hirofumi Dohgome: Innovator in Schmitt Trigger Circuit Technology

Introduction

Hirofumi Dohgome is a notable inventor based in Kokubu, Japan. He is recognized for his contributions to electronic circuit design, particularly in the development of the Schmitt trigger circuit. His innovative approach has led to advancements in the field of electronics.

Latest Patents

Hirofumi Dohgome holds a patent for a Schmitt trigger circuit. This circuit features a first transistor for inversion, which has a base supplied with an input voltage. A level shift diode is utilized to shift the emitter voltage of the first transistor from a reference level. Additionally, a second transistor for switching is incorporated, with its collector and emitter coupled to the anode and cathode of the level shift diode, respectively. The emitter of the second transistor is connected to a first power source voltage. A switching part is linked between the base of the second transistor and a second power source voltage, which is higher than the first power source voltage, to control the switching of the second transistor. The output circuit is connected between the first and second power source voltages and is supplied with the input voltage through the first transistor to output the output voltage. The switching part is controlled in response to a voltage from the output circuit, closing when the logic level of this voltage is high, thereby turning the second transistor ON.

Career Highlights

Throughout his career, Hirofumi Dohgome has worked with prominent companies in the technology sector. He has been associated with Fujitsu Corporation and Kyushu Fujitsu Electronics Limited, where he contributed to various projects and innovations in electronic design.

Collaborations

Hirofumi has collaborated with notable colleagues, including Hiromu Enomoto and Masao Kumagai. Their teamwork has fostered an environment of innovation and creativity in their respective fields.

Conclusion

Hirofumi Dohgome's work in the development of the Schmitt trigger circuit exemplifies his innovative spirit and dedication to advancing electronic technology. His contributions continue to influence the industry and inspire future inventors.