Fred T Cheng

Title: The Innovations of Fred T Cheng

Introduction

Fred T Cheng is a notable inventor based in Cupertino, CA. He has made significant contributions to the field of electrical engineering, particularly in the development of voltage reference systems. With a total of 4 patents to his name, Cheng's work has had a lasting impact on the industry.

Latest Patents

One of his latest patents is the "Switchable Current-Reference Voltage Generator." This innovative system operates in either a current-controlled mode or a voltage-controlled mode and includes a power-down circuit connected to the operational amplifier. This feature allows the operational amplifier to be powered down when the reference generator is switched to the current-controlled mode. Another significant patent is the "Bandgap Voltage Reference Using Bipolar Parasitic Transistors." In this CMOS bandgap reference circuit, the collectors of two lateral parasitic NPN transistors are connected to the nodes of a current mirror. The design ensures that the base-emitter junction current densities of the parasitic NPN transistors are maintained at a preselected ratio, providing a stable reference voltage.

Career Highlights

Throughout his career, Fred T Cheng has worked with prominent companies such as National Semiconductor Corporation and Samsung Semiconductor Inc. His experience in these organizations has allowed him to refine his skills and contribute to groundbreaking technologies in the semiconductor industry.

Collaborations

Cheng has collaborated with several talented individuals, including Don Roy Sauer and Wei-Chan Hsu. These partnerships have fostered innovation and have led to the successful development of various technologies.

Conclusion

Fred T Cheng's contributions to electrical engineering and his innovative patents demonstrate his expertise and commitment to advancing technology. His work continues to influence the field and inspire future inventors.