Robert Wolf

Title: Innovations by Robert Wolf

Introduction

Robert Wolf is an accomplished inventor based in Nashua, NH (US). He holds 2 patents that showcase his expertise in power supply technologies. His innovative approaches have contributed significantly to the field of electrical engineering.

Latest Patents

One of Robert's latest patents is a unique method of reducing losses in circuits using V2 PWM control. This invention involves a regulated power supply where the square wave output of a switching rectifier is applied to a filter comprising a series inductor and a parallel capacitor. Notably, this filter lacks a series resistor. The ramp signal is developed across a second capacitor in series with a first resistor, and in parallel with the rectifier output. An amplifier adds the ramp signal to a signal representing the error in the DC output voltage of the power supply, producing an output that is fed to a control circuit. The control circuit generates a voltage control signal that regulates the switching of the rectifier.

Another significant patent is for an apparatus and method for parallel synchronous power converters. This invention addresses the issue of current hogging in parallel connected transformers. Current hogging occurs when synchronous power converter transformers operate in a low output current mode. The method consists of using a current sensor to detect low or negative output currents, and then driving the transistor providing the path to ground to an off state. A preferred embodiment includes a current sense inductor placed in series with the primary side of the power converter connected to an operational amplifier. This setup ensures efficient operation and prevents current hogging.

Career Highlights

Robert has worked with notable companies such as Compaq Information Technologies Group, L.P. and Compaq Computer Corporation, Inc. His experience in these organizations has allowed him to refine his skills and contribute to various innovative projects.

Collaborations

Robert has collaborated with talented individuals, including Raoji Patel and Raoji A Patel. These partnerships have fostered a creative environment that has led to the development of groundbreaking technologies.

Conclusion

Robert Wolf is a distinguished inventor whose contributions to power supply technologies have made a significant impact in the field. His innovative patents reflect his dedication to advancing electrical engineering.