This inventor holds 3 USPTO granted patents. Top assignees: Bcd Semiconductor Manufacturing Limited, Bcd Semiconductor Manufacturing Co., Ltd.. Active years: 2012-2015.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
2 out of 42 
1 out of 6 
Years Active: 2012-2015
Title: Huizhen Zhu: Innovator in Power Supply Technology
Introduction
Huizhen Zhu is a notable inventor based in Shanghai, China. He has made significant contributions to the field of power supply technology, holding a total of 3 patents. His work focuses on enhancing the efficiency and functionality of switching power supplies.
Latest Patents
One of Huizhen Zhu's latest patents is a control circuit for primary side control of switching power supply. This invention involves a switched mode power supply (SMPS) that includes a transformer with a primary winding, a secondary winding, an auxiliary winding, and a power switch. During a switching cycle, the auxiliary winding provides a feedback signal that includes a first voltage pulse induced after the power switch is turned on and a second voltage pulse induced after it is turned off. The control circuit generates a sampling signal to sample the second voltage pulse at a time determined by the first voltage pulse. A sample-and-hold circuit is used to store the second voltage pulse, and a switching signal generating circuit controls the power switch based on the output of the sample-and-hold circuit.
Another significant patent by Zhu is a control circuit and method for audible noise suppression in a power converter. This control circuit regulates the output of a power converter by increasing the switching frequency of the power switch when a first signal representing the converter's magnitude is below a specified output level. This innovation aims to reduce audible noise generated by the power converter, enhancing user experience.
Career Highlights
Huizhen Zhu has worked with BCD Semiconductor Manufacturing Limited and BCD Semiconductor Manufacturing Co., Ltd. These experiences have allowed him to develop and refine his expertise in power supply technologies.
Collaborations
Throughout his career, Huizhen Zhu has collaborated with notable colleagues, including Pingan Zhao and Ruixia Fei. Their teamwork has contributed to advancements in the field of power supply technology.
Conclusion
Huizhen Zhu's innovative work in power supply technology has led to valuable patents that enhance the efficiency and functionality of power converters. His contributions continue to impact the industry positively.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile