Roger Van Brunt

Title: The Innovations of Roger Van Brunt

Introduction

Roger Van Brunt is an accomplished inventor based in Santa Cruz, CA. He has made significant contributions to the field of phase-locked loops and synthesizers, holding a total of 3 patents. His work has advanced the technology used in various electronic devices, showcasing his expertise and innovative spirit.

Latest Patents

One of Roger's latest patents is titled "Apparatus and methods for fractional-N phase-locked loops with multi-phase oscillators." This invention provides a fractional-N PLL that includes a time-to-digital converter, a digital loop filter, a multi-phase oscillator, and fractional division circuitry. The multi-phase oscillator generates multiple clock signal phases, which help reduce quantization error. Additionally, the inclusion of a tap error correction circuit enhances the phase noise and jitter performance of the PLL.

Another notable patent is "Apparatus and methods for phase-locked loops." This invention features a PLL that includes a voltage-controlled oscillator with first and second frequency control circuits. The design also incorporates a loop filter and both high and low-frequency pole circuits, optimizing the PLL's performance.

Career Highlights

Throughout his career, Roger has worked with prominent companies such as Analog Devices, Inc. and RF Micro Devices, Inc. His experience in these organizations has allowed him to refine his skills and contribute to groundbreaking technologies in the field of electronics.

Collaborations

Roger has collaborated with several talented individuals, including Mark Alexander, John Moffat, and Steve Picken. These partnerships have fostered innovation and creativity in his projects.

Conclusion

Roger Van Brunt's contributions to the field of phase-locked loops and synthesizers demonstrate his innovative capabilities and commitment to advancing technology. His patents reflect a deep understanding of electronic systems and a drive to improve their performance.