John A Bassett

Title: Innovations by John A. Bassett: Pioneering Boost Converter Technologies

Introduction

John A. Bassett, an accomplished inventor based in Pleasanton, California, holds a significant footprint in the field of power electronics with a total of three patents to his name. His work primarily focuses on innovations that enhance the efficiency and performance of boost converter power supply systems.

Latest Patents

Among his latest contributions are two groundbreaking patents:

1. **Boost Converter Power Supply with Reduced Losses** - This invention revolves around a boost converter power supply circuit that optimizes energy use by utilizing the energy from a diode recovery current. This current flows in the blocking diode during diode commutation, discharging capacitance linked to the main switch of the boost converter to achieve zero voltage switching. Initial capture of the diode recovery current energy occurs in an inductor, which is then transferred to a capacitor and subsequently back to the inductor prior to the main switch activation. Additionally, he presents a control circuit that facilitates power factor correction without employing a high gain input current feedback loop, allowing for a quick response to output load changes and eliminating the need for an X-Y multiplier.

2. **DC/DC Converter Switching at Zero Voltage** - This patent describes a two-switch DC/DC converter that effectively manages inductive energy storage at the end of each switch's 'on' period. This process alters the charge on the switches' intrinsic and stray capacitance, allowing for zero voltage across the alternate switch before its activation. The devised short dead-band between turn-on pulses facilitates this transition, enhancing overall converter efficiency and minimizing energy dissipation in switching devices. Its unique topology supports additional features, including constant frequency operation with pulse-width modulation for regulation, quasi-square wave output current, and the option to integrate magnetic elements with or without coupling.

Career Highlights

John A. Bassett has made significant strides in his career while working at Computer Products, Incorporated. His innovative approach in the field of power electronics has earned him recognition as a valuable contributor to advancements in boost converter technologies.

Collaborations

Throughout his career, John has collaborated closely with his coworker, Arthur Brian Odell, leveraging their combined expertise to push the boundaries of current electrical engineering practices.

Conclusion

With a keen focus on enhancing the efficiency of power supplies through innovative designs, John A. Bassett continues to be a noteworthy figure in the world of inventions. His patents reflect a profound understanding of electrical systems and a commitment to advancing technology in significant ways.