Company Filing History:
3 out of 6 
1 out of 2 Years Active: 2022-2025
Title: Innovations of Xiufeng Yu
Introduction
Xiufeng Yu is a notable inventor based in Hangzhou, China. He has made significant contributions to the field of electrical engineering, particularly in power systems and control circuits. With a total of four patents to his name, his work focuses on improving the efficiency and performance of power supply systems.
Latest Patents
Xiufeng Yu's latest patents include a bleeder current control circuit and a control method for distortion signal processing. The bleeder current control method involves several steps, including the transmission of a post-bridge input signal to the power system. A shaping circuit then transforms this signal into a bleeder current reference signal, which is inversely correlated with the initial input signal. By acquiring a current sampling signal that represents the bleeder current, the method compares the error of this signal with the reference signal to generate an error signal. This process allows for the output of a current sampling signal based on the waveform of the bleeder current reference signal, ultimately providing a reliable sine wave envelope signal to the power system and reducing losses caused by bleeder current.
Another significant patent is a control circuit designed for managing a power switch in a switching power supply circuit, aimed at improving electromagnetic interference (EMI) performance. This optimization circuit includes an adaptive amplitude jitter generating circuit, a comparison circuit, and a trigger circuit. The adaptive amplitude jitter generating circuit produces a periodic amplitude jitter signal based on feedback voltage indicative of the output of the switching power supply. The comparison circuit then compares the sampled voltage signal with this periodic amplitude jitter signal, generating an output signal with periodic fluctuations. The trigger circuit subsequently outputs a control signal for driving the power switch according to the output signal and the clock signal.
Career Highlights
Throughout his career, Xiufeng Yu has worked with several companies, including Shenzhen Kiwi Instruments Corporation and Hangzhou Kiwi Instruments Corporation. His experience in these organizations has allowed him to develop and refine his innovative ideas in the field of electrical engineering.
Collaborations
Xiufeng Yu has collaborated with notable colleagues, including Weixiang Jin and Bin Liu. These partnerships have contributed to the advancement of his projects and the successful development of his patents.
Conclusion
Xiufeng Yu's contributions to the field of electrical engineering through his innovative patents demonstrate his commitment to enhancing power systems and control circuits. His work continues to influence the industry and
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