This inventor holds 1 USPTO granted patent. Top assignee: National Instruments Corporation. Active years: 2026.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 2026
Title: Siew-Leong Lam: Inventor of a Virtual Resistance Control System.
Introduction
Siew-Leong Lam is an inventor based in Bayan Lepas, Malaysia. His patent work includes a control-system approach designed to improve dynamic performance in constant-voltage operation.
Latest Patents
Lam is associated with 1 patent, titled “System and Method for Virtual Resistance.” The invention describes a control system that can improve dynamic performance in constant-voltage (CV) mode while remaining invariant to the source type and operating point. It achieves this by using a voltage-controlled resistance as the control element in the system’s feedback loop, replacing a voltage-controlled current source, potentially with few or no additional circuit components. The system measures an input voltage from a device under test, determines a feedback control voltage based at least partly on that measurement, and applies the combined voltage to operate the device in CV mode.
Career Highlights
Lam is associated with National Instruments Corporation. His patent reflects work on feedback control and voltage regulation for devices under test.
Collaborations
Lam’s listed coworker is Tatt-Wee Oong. Their association provides context for the professional environment connected with Lam’s patent work.
Conclusion
Siew-Leong Lam’s “System and Method for Virtual Resistance” presents a feedback-control technique intended to improve constant-voltage performance with minimal circuit changes.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile