Cheng-chieh Liu

Title: Innovations by Cheng-Chieh Liu in Fan Motor Technology

Introduction

Cheng-Chieh Liu, an innovative inventor based in Taichung County, Taiwan, has made a significant contribution to the field of electronic devices. His work primarily revolves around enhancing the efficiency and control mechanisms of fan motors. With a strong foundation in electrical engineering, Liu signifies the spirit of innovation that drives advancements in technology.

Latest Patents

Cheng-Chieh Liu holds a patent for a unique fan motor speed control circuit. This innovative circuit integrates a digital/analog converting unit with a driving unit. The digital/analog converting unit receives a pulse width modulation (PWM) signal, converting it into a voltage signal. The driving unit, connected in series, utilizes this voltage signal to modulate the fan motor's speed. Specifically, when the voltage signal exceeds a certain threshold, the fan maintains a low constant rotation speed. Conversely, when the voltage signal drops below another threshold, the fan can operate at full speed or adjust to a variable speed, depending on the voltage levels. This patent marks a crucial improvement in energy efficiency and operational versatility for fan motors.

Career Highlights

Cheng-Chieh Liu is currently employed at Delta Electronics, Inc., a renowned company known for its innovations in power and thermal management, automation and control, and renewable energy solutions. His role at Delta Electronics highlights his commitment to advancing electronic technologies and reflects the company's dedication to fostering innovation in engineering.

Collaborations

Throughout his career, Cheng-Chieh Liu has collaborated with esteemed colleagues, including Wen-Shi Huang and Ming-shi Tsai. Together, they contribute to a culture of innovation, exchanging ideas and expertise to develop cutting-edge solutions for complex electrical engineering challenges.

Conclusion

Cheng-Chieh Liu's contributions to fan motor technology exemplify the importance of innovation in the ever-evolving electronics field. His patent not only highlights his technical skill but also signifies a step forward in the quest for energy-efficient technology. As he continues to work at Delta Electronics, Liu is poised to make even more groundbreaking advancements in the industry, inspiring future generations of inventors.