Richard D Davis

Title: Richard D. Davis: Innovator in Power Measurement Technologies

Introduction

Richard D. Davis is a notable inventor based in Nevada City, CA (US). He has made significant contributions to the field of power measurement technologies, holding a total of 5 patents. His innovative work focuses on enhancing the accuracy and efficiency of watt-hour meters and delta-sigma modulators.

Latest Patents

One of his latest patents is a watt-hour meter with digital per-phase power factor compensation. This invention employs a power factor compensation technique that inserts a delay into the digitized current or voltage sample stream. The electronic watt-hour meter comprises a voltage sensor, a current sensor, a conversion circuit, and a processing circuit. The voltage sensor generates a voltage measurement signal responsive to a voltage provided to a load, while the current sensor generates a current measurement signal responsive to a current provided to a load. The conversion circuit includes a first converter connected to the voltage sensor for generating a sampled voltage data stream and a second converter connected to the current sensor for generating a sampled current data stream. The phase correction circuit inserts a delay into one of the sampled data streams, allowing the processing circuit to generate accurate power consumption data.

Another significant patent by Richard D. Davis addresses offset and phase correction for delta-sigma modulators. This invention provides a method and apparatus for correcting offsets and phases of input signals to multiplexed delta-sigma modulators. It utilizes a novel switching technique during different sampling periods to eliminate the effect of DC offsets present in multiplexed input signals. The invention also employs a delay introduced by a FIFO or a shift register to individually correct for phase shifts, achieving these objectives without introducing significant quantization noise.

Career Highlights

Throughout his career, Richard D. Davis has worked with several prominent companies, including Silicon Systems, Inc. and Siemens Power Transmission & Distribution, Inc. His experience in these organizations has contributed to his expertise in power measurement technologies.

Collaborations

Richard has collaborated with notable professionals in his field, including Jeff Kotowski and Gordon R. Burns. These collaborations have further enriched his work and innovations.

Conclusion

Richard D. Davis is a distinguished inventor whose contributions to power measurement technologies have made a significant impact in the industry. His innovative patents reflect his commitment to enhancing the accuracy and efficiency of power measurement systems.