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Company Filing History:
35 out of 1,901 
21 out of 5,162 
2 out of 22 
Years Active: 2013-2022
Title: Innovator Spotlight: Wanfeng Zhang
Introduction
Wanfeng Zhang is a prominent inventor based in Palo Alto, California, with an impressive portfolio of 58 patents. His work primarily focuses on advancements in power conversion technology, which have significant implications for energy efficiency and performance in electronic devices.
Latest Patents
Zhang's latest innovations include two notable patents that enhance the operation of active clamp switching power converter circuits. The first patent details a voltage sensing mechanism that utilizes an auxiliary winding with an opposite polarity to the primary winding. This system generates a sensed auxiliary winding voltage, allowing a controller to manage the switching of a power switch to effectively control current through the primary winding. The innovation aims to achieve a zero voltage switching condition before activating the power switch, thus promoting energy-efficient operation.
The second patent continues this theme by focusing on controlling an active clamp switching power converter circuit based on a sensed voltage drop on an auxiliary winding. Similar to the first, the primary side controller oversees the switching process, ensuring that leakage energy is managed when the power switch is off, again emphasizing the importance of zero voltage switching for improved power efficiency.
Career Highlights
Throughout his career, Wanfeng Zhang has contributed to prominent companies, including Marvell World Trade Ltd. and Marvell International Limited. His role in these organizations has facilitated essential advancements in power management technologies, showcasing his expertise in electrical engineering and innovation.
Collaborations
Zhang has collaborated with esteemed professionals in his field, including Jinho Choi and Hao Peng. These partnerships have not only strengthened his patent portfolio but also fostered an environment of creativity and innovation within the technology sector.
Conclusion
Wanfeng Zhang's remarkable contributions to the field of power conversion technology underscore his status as a leading inventor in the industry. With 58 patents to his name and a commitment to enhancing energy efficiency, Zhang continues to influence the future of electronics through his innovative designs and collaborations.
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