Kehua Ma

Title: Kehua Ma - Innovator in Power Adapter Technology

Introduction

Kehua Ma is a notable inventor based in Shanghai, China. He has made significant contributions to the field of power adapter technology. His innovative approach has led to the development of a unique power adapter that enhances efficiency and functionality.

Latest Patents

Kehua Ma holds a patent for a "Power adapter with limited power source function and control method thereof." This invention includes a transformer, an output terminal, a secondary side circuit, and a secondary side controller featuring an operational amplifier. The design incorporates a first switch connected to the secondary winding of the transformer and a second switch linked to the output terminal. A sampling resistor is utilized to acquire a sampling voltage, while the operational amplifier generates a voltage difference value by comparing a reference voltage with a feedback voltage. The secondary side controller manages the operation of the second switch based on specific voltage levels, ensuring optimal performance.

Career Highlights

Kehua Ma is currently employed at Delta Electronics (Shanghai) Co., Ltd. His work at this esteemed company has allowed him to further his research and development in power electronics. His expertise in this area has positioned him as a valuable asset to his team.

Collaborations

Kehua Ma collaborates with talented coworkers, including Daofei Xu and Haitao Zhang. Their combined efforts contribute to the advancement of innovative technologies within their field.

Conclusion

Kehua Ma's contributions to power adapter technology exemplify his dedication to innovation. His patent and work at Delta Electronics highlight his role as a leading inventor in the industry.