Company Filing History:
3 out of 792 
1 out of 9,172 
Years Active: 1996-2008
Title: Chean-Lung Tsay: Innovator in Power Factor Correction Technology
Introduction
Chean-Lung Tsay is a prominent inventor based in Hsinchu, Taiwan. He has made significant contributions to the field of power factor correction technology, holding a total of 4 patents. His innovative work has paved the way for advancements in electrical engineering and power management systems.
Latest Patents
One of his latest patents is the "Piecewise on-time modulation apparatus and method for a power factor corrector." This invention involves a power factor corrector that utilizes a PWM switch to manage line current generated from a line voltage. The method compares a line voltage dependent voltage with an output voltage dependent voltage to generate a comparison signal, which determines the on-time of the PWM switch. This innovation allows for variable on-time based on line voltage conditions, enhancing efficiency in power management.
Another notable patent is the "Two-phase driver and driving method." This invention features a two-phase driver that includes two H-bridge circuits, each equipped with a transformer and switch assemblies. The design allows for modulation of loading currents supplied to two loading loops, optimizing performance in various applications.
Career Highlights
Chean-Lung Tsay has worked with reputable organizations such as Richtek Technology Corporation and the Industrial Technology Research Institute. His experience in these companies has contributed to his expertise in power electronics and circuit design.
Collaborations
Throughout his career, Tsay has collaborated with notable colleagues, including Khang-Shen Kwan and Li-Ming Wu. These partnerships have fostered innovation and development in their respective fields.
Conclusion
Chean-Lung Tsay's contributions to power factor correction technology and his innovative patents demonstrate his significant impact on the field of electrical engineering. His work continues to influence advancements in power management systems, showcasing the importance of innovation in technology.