Company Filing History:
Years Active: 1992-1999
Title: Tim M Ng: Innovator in Feedback Amplifiers and DAC Technology
Introduction
Tim M Ng is a notable inventor based in Monterey Park, CA (US). He holds 2 patents that showcase his contributions to the field of electrical engineering, particularly in feedback amplifiers and digital-to-analog converters.
Latest Patents
One of Tim's latest patents is the "Overdrive protection clamp scheme for feedback amplifiers." This invention presents a low-noise, low-distortion clamping scheme that includes a bootstrapped voltage clamp and an R.sub.gm current clamp. These components work together to provide superior overdrive protection in Class-AB feedback amplifiers. The bootstrapped voltage clamp utilizes a transistor connected to a circuit node, maintaining a constant V.sub.be to minimize the adverse effects of junction capacitance. The R.sub.gm current clamp limits the current through the resistor R.sub.gm, ensuring that it does not exceed a predetermined limit, thus preserving the integrity of the amplifier's input stage.
Another significant patent is the "Two quadrants high speed multiplying DAC." This invention is a multiplying digital-to-analog converter designed to multiply a bipolar input current by a digital word. It features a current adder, first and second current mirrors, and current selection circuits that work together to produce a bipolar output current representative of the product of the input bipolar current and the digital word.
Career Highlights
Tim has had a distinguished career, working with prominent companies such as Raytheon Company and Hughes Aircraft Company. His experience in these organizations has contributed to his expertise in developing innovative technologies.
Collaborations
Throughout his career, Tim has collaborated with talented individuals, including Khanh Lam and Lloyd Frederick Linder. These collaborations have likely enriched his work and led to advancements in his projects.
Conclusion
Tim M Ng is a remarkable inventor whose work in feedback amplifiers and digital-to-analog converters has made a significant impact in the field of electrical engineering. His patents reflect his innovative spirit and dedication to advancing technology.
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