David R Welland

Title: Innovations of David R. Welland

Introduction

David R. Welland is a notable inventor based in Boston, MA, with a significant contribution to the field of electrical engineering. He holds a total of 8 patents, showcasing his innovative spirit and technical expertise. His work primarily focuses on improving electronic systems and components.

Latest Patents

One of his latest patents is the Bias Generator, which provides a bias voltage output that is a function of an input current Iprog. This invention allows for a bias current to a preselected load that tracks the input signal independently of temperature. The bias voltage output's temperature dependency is determined by a voltage-current temperature function and a scalar ratio of two resistors. This design enables easy construction for specific circuit loads, ensuring that the biasing current remains substantially independent of temperature.

Another significant patent is the All NPN Variably Controlled Amplifier. This system comprises an operational amplifier with a feedback path between its input and output terminals. It includes variable impedance means for adjusting the output voltage and current in response to input signals and control signals. The gain of the amplifier is influenced by the control signal applied to a transistor operating in its saturated region. This system can be utilized for signal compression or expansion in various applications.

Career Highlights

David R. Welland is currently associated with Dbx Corporation, where he continues to innovate and develop advanced electronic solutions. His work has had a lasting impact on the industry, particularly in the areas of signal processing and amplification.

Collaborations

David R. Welland has collaborated with David E. Blackmer, contributing to the advancement of technology in their respective fields.

Conclusion

David R. Welland's contributions to electrical engineering through his patents and innovations highlight his role as a significant inventor. His work continues to influence the development of electronic systems, showcasing the importance of innovation in technology.