Gary Wing-Kei Wong

Title: Gary Wing-Kei Wong: Innovator in Charge Pump Technology

Introduction

Gary Wing-Kei Wong is a notable inventor based in Hong Kong, CN. He has made significant contributions to the field of charge pump technology, particularly in the calibration of currents for phase-locked loops (PLLs). His innovative approach has led to the development of a patent that enhances the accuracy and efficiency of charge pumps.

Latest Patents

Gary Wong holds a patent titled "Calibration of up and down charge-pump currents using a sample-and-hold circuit during idle times." This invention focuses on a charge pump for a phase-locked loop (PLL) that ensures accurate matching of charge and discharge currents applied to the PLL's loop filter. The technology involves a variable current-sink transistor whose gate-to-source voltage is adjusted to match a source current from a fixed current source. An intermediate node between series transistors is sampled by a sampling transistor that connects to a sampling capacitor. The voltage on the sampling capacitor represents the gate-to-source voltage of the variable current-sink transistor. During calibration periods, the variable current-sink transistor's gate and drain are coupled together through the sampling transistor, allowing for precise current matching.

Career Highlights

Gary Wong is currently employed at Pericom Technology Inc., where he continues to innovate in the field of electronic components. His work has been instrumental in advancing technologies that rely on precise current management in charge pumps.

Collaborations

Gary collaborates with Vincent Sin-Luen Cheung, contributing to the development of cutting-edge technologies in their field.

Conclusion

Gary Wing-Kei Wong's contributions to charge pump technology exemplify the impact of innovative thinking in electronics. His patent reflects a commitment to enhancing the performance of phase-locked loops, showcasing his expertise and dedication to the field.