Company Filing History:
Years Active: 2011-2012
Title: Innovations of Run Qin Tan
Introduction
Run Qin Tan is a notable inventor based in Shenzhen, China. He has made significant contributions to the field of power factor correction devices. With a total of 2 patents, his work focuses on enhancing the efficiency and performance of electrical systems.
Latest Patents
One of his latest patents is a transition mode power factor correction device with a built-in automatic total harmonic distortion reduction feature. This innovative controller is designed to reduce harmonic content in AC-to-DC converters. It minimizes total harmonic distortion (THD) caused by crossover distortion. The controller approximates the current shape running through the boost inductor to the sinusoidal waveform of the rectified line input voltage. It also ensures that the valley of the rectified sinusoidal waveform line voltage remains close to the local ground value. This device is suitable for a wide range of AC line input voltage and output loading applications.
Another significant patent is related to a clamp protection circuit and a PFC control circuit employing such a clamp protection circuit. This invention includes a high voltage isolation module that receives power from a high voltage power supply. It also features a voltage clamp module that receives low voltage output from the high voltage isolation module to realize clamp protection. Additionally, a low voltage bias module provides bias voltage to both the high voltage isolation module and the voltage clamp module. This design improves the precision of the clamp voltage, simplifies the design, and reduces the silicon area. The transient response is also enhanced, making it a valuable addition to PFC control circuits.
Career Highlights
Run Qin Tan is currently employed at Evergreen Micro Devices Co., Ltd. His work at this company has allowed him to focus on developing innovative solutions in power electronics. His contributions have been instrumental in advancing the technology used in power factor correction devices.
Collaborations
He collaborates with talented coworkers, including Matthew Man Ho Ku and Li Fang Guo. Their combined expertise fosters a creative environment that drives innovation.
Conclusion
Run Qin Tan's contributions to the field of power electronics are noteworthy. His patents reflect a commitment to improving the efficiency and performance of electrical systems. His work continues to influence the industry positively.