Robert G Brown

Title: Innovations by Robert G Brown

Introduction

Robert G Brown is an accomplished inventor based in New Hartford, CT. He has made significant contributions to the field of electrical engineering, particularly in the development of brushless DC motors. With a total of three patents to his name, Brown's work showcases his expertise and innovative spirit.

Latest Patents

One of his latest patents is for a "Brushless DC motor with reduced current ripple." This invention features a commutation circuit that is controlled according to a commutation cycle composed of alternating primary steps and transitional steps. The circuit includes pairs of field effect transistors coupled in series between the high voltage and low voltage terminals of a DC power supply. The output terminals between each pair of transistors are individually coupled to the phases of a DC motor. A controller operates the commutation circuit to selectively set the phases at active and inactive states. Additionally, the controller employs various voltage control functions associated with the motor phases to modulate the voltage applied during active states, thereby reducing current ripple.

Another notable patent is for a "Sensorless drive for unipolar three phase brushless DC motors." This system controls a trapezoidally driven DC motor using a unipolar commutation circuit. The motor has three phases formed by respective stator windings coupled at a common node. The commutation circuit drives the motor according to a commutation cycle that includes three primary steps. During each primary step, one of the phases is driven while the other two are not. The system is designed to sense voltages at the remote ends of the undriven phases, generating timing signals that help determine motor position and speed.

Career Highlights

Robert G Brown is currently employed at The Bergquist Torrington Company, where he continues to innovate and develop new technologies. His work has had a significant impact on the efficiency and performance of brushless DC motors.

Collaborations

Brown collaborates with Ashit Kumar Das, leveraging their combined expertise to push the boundaries of motor technology.

Conclusion

Robert G Brown's contributions to the field of electrical engineering, particularly in brushless DC motors, highlight his innovative capabilities and dedication to advancing technology. His patents reflect a commitment to improving motor efficiency and performance, making him a notable figure in the industry.