Yi-Cheng Liu

Title: **Yi-Cheng Liu: Innovator in Light Source Driving Technology**

Introduction

Yi-Cheng Liu is a notable inventor based in Taipei Hsien, Taiwan, recognized for his contributions to light source driving technology. With a total of three patents to his name, Liu has demonstrated a commitment to advancing electrical engineering innovations, particularly in the field of lighting systems.

Latest Patents

Among his most recent patents, Liu has developed a **Device for Driving Light Sources**. This innovative device comprises several key components: a power stage circuit, a transformer circuit, a voltage dividing circuit, an inrush current sensing circuit, and a controller circuit. The power stage circuit effectively converts a received direct current (DC) signal into an alternating current (AC) signal. The transformer circuit then takes this AC signal and modifies it to an appropriate signal for lamp operation. Additionally, the voltage dividing circuit monitors and divides the voltage output from the transformer circuit, while the inrush current sensing circuit detects inrush currents. The controller circuit regulates the output of the power stage circuit based on feedback from the inrush current sensing circuit.

Another significant patented invention by Liu is the **Input Current Limiting Circuit and Driving Device Using the Same**, which features an input current limiting circuit designed to keep the input power signal within a predetermined range. This circuit incorporates an input current sensing mechanism and a feedback compensation setup that work together to monitor and adjust the current flow. The inverter integrated into this system ensures that the light source module receives stable and controlled power input, enhancing efficiency and performance.

Career Highlights

Liu is currently affiliated with Hon Hai Precision Industry Co., Ltd., a global leader in electronics manufacturing. His role at this esteemed company has allowed him to refine his expertise and push the boundaries of innovation in light source technology.

Collaborations

Throughout his career, Liu has collaborated with notable colleagues, including Chen-An Chiang and Chih-Chan Ger. Together, they have contributed to the development and enhancement of technologies that have the potential to transform the industry.

Conclusion

With his impressive patent portfolio and collaborative spirit, Yi-Cheng Liu continues to be a pivotal figure in the field of electrical engineering, particularly in the realm of light source driving technologies. His innovative approaches are likely to influence future advancements and applications, ensuring his place in the ever-evolving landscape of technology.