Location History:
- Redondo Beach, CA (US) (1994 - 2001)
- Manhattan Beach, CA (US) (2003 - 2008)
Company Filing History:
Years Active: 1994-2008
Title: Innovations of David C Tam
Introduction
David C Tam is a prominent inventor based in Redondo Beach, California. He has made significant contributions to the field of motor drive systems and control technologies. With a total of 10 patents to his name, Tam has demonstrated a commitment to advancing engineering solutions that enhance performance and reduce noise.
Latest Patents
One of his latest patents is a global closed loop control system with DV/DT control and EMI/switching loss reduction. This innovative motor drive system control provides global closed loop feedback to cooperatively operate system components. It adaptively reduces noise and provides noise cancellation feedback. An active EMI filter is incorporated to reduce differential and common mode noise on an input while providing a noise level indication to a system controller. The power switches in both a power converter and power inverter are cooperatively controlled with dynamic dv/dt control to minimize switching noise according to a profile specified by the controller. Additionally, a noise extraction circuit and technique are employed to obtain fast noise sampling, allowing for effective noise cancellation and adaptive noise reduction.
Another notable patent by Tam is a gate driver for a power switch. This invention includes a gate drive circuit coupled to the gate of the power switch for turning it on and off. It features a gate voltage control circuit that manages the voltage applied to the gate during these operations. A signal indicative of the voltage rate of change per unit time is supplied to the gate voltage control circuit, enhancing the efficiency of the power switch's operation.
Career Highlights
David C Tam is currently associated with International Rectifier Corporation, where he continues to innovate and develop advanced technologies. His work has significantly impacted the field of power electronics and motor control systems.
Collaborations
Tam has collaborated with notable colleagues, including Toshio Takahashi and Chongwook Chris Choi. Their combined expertise has contributed to the successful development of various technologies in the industry.
Conclusion
David C Tam's contributions to the field of motor drive systems and control technologies are noteworthy. His innovative patents reflect his dedication to enhancing engineering solutions and reducing noise in electronic systems. His work continues to influence advancements in power electronics.