James D Christensen

Title: Innovations by James D Christensen

Introduction

James D Christensen is a notable inventor based in Portland, OR (US). He has made significant contributions to the field of electronics, particularly through his innovative patents. With a total of 2 patents, Christensen has developed technologies that enhance the efficiency and safety of electronic devices.

Latest Patents

One of Christensen's latest patents is the "Sinusoidal Inductorless Dimmer Applying Variable Frequency Power Signal." This invention provides a control service that delivers controlled magnitude energy from a sinusoidal power source in the form of a sequence of pulses conforming to the sinusoidal envelope. The technology allows for high gate signal frequencies to deliver substantially all energy presented in the power signal, while lower frequencies enable a selected magnitude energy to be taken from the sinusoidal power signal. This innovative approach eliminates undesirable noise or radio frequency interference and does not require the use of expensive, heavy, and voluminous chokes or inductors.

Another significant patent is the "Isolated Solid State Relay." This solid state relay features a protective input stage at its control terminals, isolating the control circuit from line voltage or line current in the event of relay failure. The protective circuit includes a series combination of a voltage responsive element and a current responsive element, ensuring that the control circuit is safeguarded against potential damage caused by current flow originating from the relay line voltage terminals.

Career Highlights

Christensen is associated with Electronics Diversified, Inc., where he applies his expertise in electronics to develop innovative solutions. His work has contributed to advancements in electronic control systems, making them safer and more efficient.

Collaborations

Some of his notable coworkers include Thomas L Folsom and Greg R Allison, who have collaborated with him on various projects within the company.

Conclusion

James D Christensen's contributions to the field of electronics through his patents demonstrate his commitment to innovation and safety in technology. His work continues to influence the development of advanced electronic systems.