Han-Chien Liu

Title: The Innovative Contributions of Han-Chien Liu

Introduction

Han-Chien Liu is a notable inventor based in Tainan, Taiwan. He has made significant contributions to the field of electrical engineering, particularly in the development of advanced DC-DC converter systems. His work is characterized by a focus on efficiency and stability in electronic circuits.

Latest Patents

One of Han-Chien Liu's key patents is the "Digitally controlled non-inverting buck-boost DC-DC converter system." This innovative system includes a non-inverting buck-boost DC-to-DC converter control module and a negative feedback module, making it applicable for radio frequency circuit modules. The design locks a duty cycle to two specific levels, allowing the control module to operate in a single mode to achieve the desired effects. This approach effectively avoids the pulse-skipping phenomenon. Additionally, the reference voltage is modified through a correction circuit in the negative feedback module, which eliminates errors between the previous DC output voltage and the reference voltage. As a result, the DC output voltage remains stable, reducing operational defects during mode transitions. Han-Chien Liu holds 1 patent for this invention.

Career Highlights

Han-Chien Liu is affiliated with National Cheng Kung University, where he contributes to research and development in electrical engineering. His academic background and practical experience have positioned him as a valuable asset in the field.

Collaborations

Han-Chien Liu has collaborated with colleagues such as Chien-Hung Tsai and Yu-Shin Tsai, further enhancing the innovative work being conducted in his research environment.

Conclusion

Han-Chien Liu's contributions to the field of electrical engineering, particularly through his patented innovations, demonstrate his commitment to advancing technology. His work not only addresses current challenges but also paves the way for future developments in DC-DC converter systems.