Location History:
- Mesquite, TX (US) (1996)
- Quinlan, TX (US) (2003)
Company Filing History:
1 out of 9,364 
1 out of 30 
Years Active: 1996-2003
Title: The Innovations of Robert J Murphy, Jr.
Introduction
Robert J Murphy, Jr. is an accomplished inventor based in Quinlan, TX (US). He holds a total of 2 patents that showcase his expertise in electrical engineering and power supply technologies. His innovative contributions have made a significant impact in the field.
Latest Patents
Murphy's latest patents include a bias supply circuit and a switching power supply employing the same. This invention involves a bias supply circuit designed for use with a switching power supply that features both a main switch and an auxiliary switch. The circuit is configured to provide a first voltage based on the input voltage and the voltage across a clamp capacitor during the conduction period of the switches. Additionally, it includes a bias supply storage capacitor that provides a second voltage, ultimately resulting in a bias supply voltage that enhances the efficiency of the power supply.
Another notable patent is the isolated input current sense means for a high power factor rectifier. This converter enhances power factor by utilizing a line sense winding that is magnetically coupled to sense voltage across a line inductor. The winding provides a measurement of the derivative of the line current, and a specially designed integrator accurately estimates the current, preventing mismeasurement and errors.
Career Highlights
Throughout his career, Robert J Murphy, Jr. has worked with prominent companies such as Lucent Technologies Inc. and Tyco Electronics Power Systems, Inc. His experience in these organizations has contributed to his development as an inventor and innovator in the field of electrical engineering.
Collaborations
Murphy has collaborated with notable individuals in his field, including Mark E Jacobs and Richard W Farrington. These collaborations have likely fostered an environment of innovation and creativity, leading to advancements in technology.
Conclusion
Robert J Murphy, Jr. is a distinguished inventor whose work in power supply technologies has resulted in valuable patents. His contributions continue to influence the field of electrical engineering, showcasing the importance of innovation in driving technological advancements.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.