James Zeng

Title: Innovations of James Zeng

Introduction

James Zeng is an accomplished inventor based in Cupertino, CA. He holds a total of 5 patents that showcase his expertise in the field of LED driver circuits and power supply systems. His innovative contributions have significantly impacted the efficiency and functionality of electronic devices.

Latest Patents

One of his notable patents is the "Single Inductor Serial-Parallel LED Driver." This invention discloses an LED driver circuit capable of driving multiple LED strings arranged in parallel. Each string consists of several component LEDs that are series-connected. The LED driver features a voltage control loop that dynamically regulates the output voltage across the parallel arrangement of LED strings. This design allows for the use of different types of LED strings while maintaining power efficiency. Additionally, each LED string includes its own individual current regulation loop, enabling independent adjustment of brightness.

Another significant patent is the "Voltage-Locked Loop." This system provides output voltage control in a power supply circuit. It comprises a first module that receives an input DC voltage and a voltage control signal, outputting a DC voltage based on these inputs. A second module receives a feedback signal representative of the output voltage and generates the voltage control signal accordingly. This innovative approach utilizes digital active components, transistors, and passive components to enhance voltage control.

Career Highlights

James Zeng has worked with prominent companies in the technology sector, including Fairchild Semiconductor Corporation and Broadcom Corporation. His experience in these organizations has contributed to his development as a leading inventor in the field of electronics.

Collaborations

Throughout his career, James has collaborated with talented individuals such as Sridhar Kotikalapoodi and Lajos Burgyan. These partnerships have fostered innovation and creativity in his projects.

Conclusion

James Zeng's contributions to the field of electronics through his patents and collaborations highlight his role as a significant inventor. His work continues to influence the development of efficient LED driver circuits and power supply systems.