Kee-Chee Tiew

Title: Kee-Chee Tiew: Innovator in Power Supply Systems

Introduction

Kee-Chee Tiew is a notable inventor based in Richardson, TX (US). He has made significant contributions to the field of power supply systems, holding a total of 2 patents. His work focuses on enhancing the efficiency and control of electrical systems.

Latest Patents

One of Kee-Chee Tiew's latest patents is related to inrush current control. This invention includes a power supply system that comprises a variable voltage source, which is configured to provide and incrementally increase a control voltage associated with a pass-transistor. The system also features an inrush current monitor that tracks the current flow through the pass-transistor. Additionally, a voltage control circuit is included to halt the incremental increase of the control voltage when the current flow exceeds a predetermined limit.

Another significant patent by Tiew involves self-oscillating boost DC-DC converters with current feedback and a digital control algorithm. This method and system for controlling a DC-DC converter includes an inductor that receives a voltage input at an input terminal. A diode is placed in series between the inductor and the output terminal of the converter. A switch is connected between the inductor and a ground reference, receiving a control signal from a controller to adjust the duty cycle of the converter. This duty cycle is crucial for controlling the output voltage at the output terminal.

Career Highlights

Kee-Chee Tiew is currently employed at Texas Instruments Corporation, a leading company in the semiconductor industry. His work at Texas Instruments has allowed him to develop innovative solutions that enhance power supply systems.

Collaborations

Throughout his career, Tiew has collaborated with notable colleagues, including H Pooya Forghani-zadeh and William Aubrey Mayfield. These collaborations have contributed to the advancement of technology in their respective fields.

Conclusion

Kee-Chee Tiew is a distinguished inventor whose work in power supply systems has led to significant advancements in the industry. His patents reflect a commitment to innovation and efficiency in electrical engineering.