Vadim Dubov

Title: Vadim Dubov: Innovator in Frequency Synthesis and Phase Lock Loop Technology

Introduction

Vadim Dubov is a notable inventor based in Boca Raton, FL (US). He has made significant contributions to the field of frequency synthesis and phase lock loop technology. With a total of 3 patents to his name, Dubov's work has had a considerable impact on the industry.

Latest Patents

One of Vadim Dubov's latest patents is titled "Method and apparatus for spur reduction in a frequency synthesizer." This invention involves a frequency synthesizer that includes a frequency source generating a reference signal with a plurality of pulses based on a reference frequency. The synthesizer features a feedback loop that consists of a phase detector circuit, a loop filter, a controlled oscillator, and a loop divide circuit. A non-linear circuit element generates intermodulation distortion, causing spurious signals at the output. The invention also includes a dither circuit that adjusts the timing of some pulses of the reference signal to attenuate these spurious signals.

Another significant patent is "System and method for reducing transient responses in a phase lock loop with variable oscillator gain." This system aims to minimize transient responses in a phase lock loop (PLL) with variable oscillator gain. It includes a charge pump with adapt and normal modes of operation, controlled trickle currents, and a programmable delay configured by a controller based on the variable oscillator gain. This innovative approach enhances the performance of PLL systems.

Career Highlights

Vadim Dubov has worked with prominent companies such as Motorola Corporation and Motorola Solutions, Inc. His experience in these organizations has contributed to his expertise in developing advanced technologies in frequency synthesis and phase lock loops.

Collaborations

Throughout his career, Dubov has collaborated with talented individuals, including Armando J Gonzalez and Joseph A Charaska. These partnerships have fostered innovation and the development of cutting-edge technologies.

Conclusion

Vadim Dubov is a distinguished inventor whose work in frequency synthesis and phase lock loop technology has led to valuable patents and advancements in the field. His contributions continue to influence the industry and inspire future innovations.