Company Filing History:
10 out of 10 
2 out of 2 Years Active: 2020-2025
Title: Innovations of Yingying Feng
Introduction
Yingying Feng is a prominent inventor based in Guangdong, China. He has made significant contributions to the field of electrical engineering, particularly in power supply circuits. With a total of 12 patents to his name, his work has had a considerable impact on the industry.
Latest Patents
One of his latest inventions is a charging power supply circuit and control method. This invention includes a PFC circuit, a driver module, and both high-voltage and low-voltage output circuits connected to the PFC circuit. The PFC circuit is connected to AC mains, and the driver module sets the operation range of the PFC circuit near the zero point of AC input voltage. This technical solution helps maintain the topology on the demand for isolation while reducing the volume and cost of PFC circuits.
Another notable invention is a single-stage AC-DC converter circuit with a power factor correction function. This circuit comprises a primary-side AC-DC converter, a transformer, a secondary-side AC-DC converter, and a controller. The primary-side AC-DC converter converts AC power into DC, while the secondary-side AC-DC converter supplies power to a load. The controller manages the duty ratios of power switches and corrects the power factor, resulting in a simpler circuit with lower costs.
Career Highlights
Yingying Feng has worked with several companies, including Shenzhen Vmax New Energy Co., Ltd. and Shenzhen Vmax Power Co., Ltd. His experience in these organizations has allowed him to develop and refine his innovative ideas in power supply technology.
Collaborations
Throughout his career, Yingying has collaborated with notable colleagues, including Jun Liu and Shun Yao. These partnerships have contributed to the advancement of his projects and innovations.
Conclusion
Yingying Feng's contributions to electrical engineering through his patents and innovations demonstrate his expertise and commitment to advancing technology. His work continues to influence the industry and inspire future innovations.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.