Haixin Wu

Title: Haixin Wu: Innovator in Voltage Measurement and Control Systems

Introduction

Haixin Wu is a prominent inventor based in Shanghai, China, known for his contributions to electrical engineering and power management systems. With a total of three patents to his name, Wu has made significant advancements in voltage spike measurement and startup control methods for DC/DC converters.

Latest Patents

One of Wu's latest patents is the "Voltage Spike Measurement Circuit and Method." This invention features a voltage spike measurement circuit designed for power switches, which includes a rectifier unit, a capacitive divider unit, and a discharge unit. The rectifier unit receives a voltage signal from the power switch and outputs a rectified signal. The capacitive divider unit, consisting of at least two capacitors connected in series, divides the rectified signal based on the capacitance ratio and sends a divider signal to a digital signal processor for calculating the voltage spike measurement value. The discharge unit is connected in parallel to the capacitive divider unit, enhancing the circuit's functionality.

Another notable patent is the "Startup Control Method and System" for a DC/DC converter. This method facilitates the startup of the converter by transferring energy from a low-voltage side to a high-voltage side. It involves acquiring a voltage spike measurement value at the low-voltage side, determining a duty cycle or frequency of a driving signal based on this value and a preset voltage, and outputting the driving signal to the power switch at the high-voltage side. This innovative approach maximizes the reverse charging power of the converter while minimizing the charging time for a bus capacitor during the reverse startup process, all while ensuring that the voltage stress on the power switch remains within safe limits.

Career Highlights

Haixin Wu is currently employed at Delta Electronics (Shanghai) Co., Ltd., where he continues to develop cutting-edge technologies in power management. His work has significantly impacted the efficiency and reliability of electrical systems.

Collaborations

Wu collaborates with talented colleagues, including Xiaolei Wang and Peng Fei Zhu, contributing to a dynamic and innovative work environment.

Conclusion

Haixin Wu's contributions to voltage measurement and control systems exemplify his commitment to advancing electrical engineering. His innovative patents reflect a deep understanding of power management, making him a valuable asset in the field.