Jack Daming Ma

Title: Jack Daming Ma: Innovator in Power Converter Technology

Introduction

Jack Daming Ma is a prominent inventor based in Mississauga, Canada. He has made significant contributions to the field of power converter technology, holding a total of 6 patents. His work focuses on enhancing the efficiency and safety of motor drive systems.

Latest Patents

Among his latest patents is the "Power converter controlling apparatus and method applying a fault protection scheme in a motor drive system." This invention provides a method and apparatus for controlling a power converter in a motor drive system. The power converter is managed during a first operating mode by applying a current control scheme, which sets commands to control active and reactive current components flowing from the power converter to the motor to achieve the desired motor speed. A fault protection scheme is executed during a second operating mode, generating commands to reduce the active current component flowing from the power converter to the motor to nearly zero. The first operating mode can be resumed upon receiving a restart command if the motor speed is above a pre-set shutdown threshold.

Another notable patent is the "Advanced current control method and apparatus for a motor drive system." This apparatus controls a power converter of an AC motor drive system, outputting multi-phase AC current to an AC motor. It includes a state selecting unit and an advanced controller. The state selecting unit chooses an operation mode from various options based on real-time operating conditions, including normal mode, power interruption mode, fault protection mode, and power-up/down dynamic mode. The advanced controller manages the multi-phase AC current output from the power converter to the motor according to the selected operation mode, ensuring effective current control under diverse operating conditions.

Career Highlights

Jack Daming Ma is currently employed at Honeywell International Inc., where he continues to innovate in the field of power electronics. His work has been instrumental in developing advanced technologies that improve the performance and reliability of motor drive systems.

Collaborations

Throughout his career, Jack has collaborated with notable colleagues, including Zheng Wang and George You Zhou. These partnerships have fostered a collaborative environment that enhances innovation and problem-solving in their projects.

Conclusion

Jack Daming Ma is a distinguished inventor whose contributions to power converter technology have significantly impacted the industry. His innovative patents and collaborative efforts continue to drive advancements in motor drive systems.