David C Ullestad

Title: David C Ullestad: Innovator in Voltage Control and Environmental Systems

Introduction

David C Ullestad is a notable inventor based in Brooklyn Park, MN (US). He has made significant contributions to the fields of voltage control and environmental systems, holding a total of four patents. His work reflects a commitment to enhancing technology in ways that improve efficiency and accuracy.

Latest Patents

Ullestad's latest patents include an "Apparatus and method for range control and supply voltage compensation." This invention describes a method for controlling the range of input voltage values to be measured and compensating for changes in the supply voltage of an analog to digital dual slope converter circuit. The selection of a range for input voltage measurements allows for conversion over a longer time period, thereby increasing the resolution of the resulting conversion. Additionally, changes in the supply voltage are combined with the input analog signal during the capacitance charging period and with the reference voltage during the capacitance discharge cycle, providing compensation for the effects of time, temperature, and supply voltage tolerance.

Another significant patent is the "Distributed environmental/load control system." This system comprises a thermostat that supplies signals indicative of sensed and desired values of a parameter in an environmentally controlled space to a first controller. This controller regulates the parameter by controlling condition-changing equipment. A second controller, connected through an interface device, processes the signals produced by the thermostat and supplies them to the first controller, thereby managing energy consumption effectively.

Career Highlights

David Ullestad is currently employed at Honeywell GmbH, where he continues to innovate and develop new technologies. His work at Honeywell has allowed him to apply his expertise in creating systems that enhance energy efficiency and improve environmental control.

Collaborations

Ullestad has collaborated with notable coworkers such as Jeffrey M Hammer and Stephen J Wesoloski. These partnerships have contributed to the development of advanced technologies and solutions in their respective fields.

Conclusion

David C Ullestad is a distinguished inventor whose work in voltage control and environmental systems has made a significant impact. His patents reflect a deep understanding of technology and a commitment to innovation.