Dong Wang

Title: Innovations by Inventor Dong Wang

Introduction

Dong Wang is a notable inventor based in Chandler, AZ (US). He has made significant contributions to the field of electrostatic discharge (ESD) protection and current sensing technologies. With a total of 3 patents to his name, Wang continues to push the boundaries of innovation in his field.

Latest Patents

One of his latest patents is a "Device and system for ESD protection." This invention involves a circuit designed to protect sensitive circuits from both positive and negative ESD events. The protection transistor is coupled to a pad, while a protection clamp is connected to the protection transistor. The design includes an isolation n-well for the protection transistor, and a current limiting resistor is coupled from the pad to the isolation n-well. This configuration effectively limits the current during negative ESD events.

Another significant patent is the "Current sense amplifier architecture and level shifter." This invention simplifies and improves upon prior art current sensing amplifier circuits by utilizing chopping without the need for auto-zeroing. It employs a simpler and faster switched capacitor filter instead of an auto-zeroing integrator filter. Additionally, the VIP (positive DC sense node) is merged with the VDDHV (power supply) node, allowing the integrated circuit package to require only a single node for both connections. A small resistor is used between VIP and VDDHV to significantly reduce offset. The invention also features a low latency time high voltage level shifter, which is essential for precise chopping operation.

Career Highlights

Dong Wang is currently employed at Microchip Technology Inc., where he continues to innovate and develop new technologies. His work has had a substantial impact on the industry, particularly in the areas of ESD protection and current sensing.

Collaborations

Wang collaborates with talented coworkers, including Jim Nolan and Kumen Blake, who contribute to the innovative environment at Microchip Technology Inc.

Conclusion

Dong Wang's contributions to the field of technology through his patents and work at Microchip Technology Inc. highlight his role as a significant inventor. His innovations in ESD protection and current sensing are paving the way for advancements in electronic circuit design.