Company Filing History:
Years Active: 2009-2014
Title: Innovations of Hong Liang Zhang
Introduction
Hong Liang Zhang is a prominent inventor based in Singapore, SG. He has made significant contributions to the field of electrical engineering, particularly in power factor correction and flyback converter design. With a total of 10 patents to his name, Zhang continues to push the boundaries of innovation.
Latest Patents
One of his latest patents is titled "Adaptive current limit for power factor correction." In this invention, an apparatus for performing power factor correction is provided. A power factor corrector includes an input configured to sense a current from an input circuit. A reference generator generates a current limit based on an input voltage. The current limit reference is dynamically changed based on the input voltage. A control signal generator controls the current in the input circuit based on a comparison of the current and the generated current limit.
Another notable patent is "Reducing voltage stress in a flyback converter design." This invention discloses a flyback converter having a controller that performs a startup switching process when the flyback converter is powered up, and then performs normal switching afterward. The controller includes a pulse generator to generate a control signal for normal switching. During startup switching, the controller may generate a control signal by outputting every N pulse from the pulse generator. In another embodiment, the controller may generate pulses based on a sense signal provided from an input section of the flyback converter.
Career Highlights
Throughout his career, Hong Liang Zhang has worked with notable companies such as Marvell International Limited and Marvell World Trade Ltd. His experience in these organizations has allowed him to refine his skills and contribute to various innovative projects.
Collaborations
Zhang has collaborated with several talented individuals in his field, including Ravishanker Krishnamoorthy and Wanfeng Zhang. These collaborations have fostered a creative environment that has led to the development of groundbreaking technologies.
Conclusion
Hong Liang Zhang is a distinguished inventor whose work in power factor correction and flyback converter design has made a significant impact in the field of electrical engineering. His numerous patents and collaborations highlight his dedication to innovation and excellence.