Company Filing History:
Years Active: 2013-2015
Title: Innovations by Inventor Nang-Ching Yeung
Introduction
Nang-Ching Yeung is a notable inventor based in Zhubei, Taiwan. He has made significant contributions to the field of LED technology, holding 2 patents that focus on improving the performance and efficiency of LED drivers.
Latest Patents
One of his latest patents is titled "Avoid audio noise of a LED driver during PWM dimming." This invention involves a LED driver that utilizes a PWM signal for dimming control. The design includes a power converter and a current regulator, which work together to provide an output voltage and load current for multiple LEDs. The current regulator generates a load current dependent signal to enhance the load transient response, reduce output voltage ripple, and eliminate audio noise during PWM dimming.
Another significant patent is "Circuit and method for controlling light emitting device, and integrated circuit therefor." This invention features a transistor switch on a light-emitting device channel, which receives a control voltage. A current source circuit regulates the current on the light-emitting device channel, requiring a minimum voltage for optimal operation. The invention also includes a dynamic headroom controller circuit that compares voltages to adjust the voltage difference accordingly.
Career Highlights
Nang-Ching Yeung is currently employed at Richtek Technology Corporation, where he continues to innovate in the field of LED technology. His work has contributed to advancements in energy efficiency and performance in lighting solutions.
Collaborations
He collaborates with talented coworkers, including Tsung-Wei Huang and Shui-Mu Lin, who contribute to the innovative environment at Richtek Technology Corporation.
Conclusion
Nang-Ching Yeung's contributions to LED technology through his patents demonstrate his commitment to innovation and improvement in the field. His work continues to influence the development of efficient lighting solutions.