This inventor holds 4 USPTO granted patents and 4 published patent applications and 1 EPO patent. Top assignee: Intersil Americas Inc.. Active years: 2013-2014.
Company Filing History:
Years Active: 2013-2014
Title: Jifeng Qin: Innovator in Power Conversion Technologies
Introduction
Jifeng Qin is a notable inventor based in San Jose, CA, who has made significant contributions to the field of power conversion technologies. With a total of 4 patents to his name, he has developed innovative solutions that enhance the efficiency and functionality of electrical systems.
Latest Patents
One of Jifeng Qin's latest patents is focused on controlling a bidirectional DC-to-DC converter. This invention provides a system and method for regulating power flow and limiting inductor current in a bidirectional direct current (DC)-to-DC converter. The feedback circuit he developed controls power flow and limits inductor current based on input/output voltage and current conditions. During the boost mode of operation, the duty cycle of a low-side switch is reduced based on an analysis of the high-side voltage and positive inductor current. Conversely, during the buck mode, the duty cycle is increased based on the low-side voltage and negative inductor current. This innovation ensures that the high-side voltage, low-side voltage, and inductor current do not exceed preset thresholds, allowing the converter to return to a steady state.
Another significant patent involves a bidirectional signal conversion controller. This controller regulates a first signal at a first converter node and operates with switch timing that is independent of the direction of power transfer between two converter nodes. This design improves conversion efficiency and reduces the size and component count compared to conventional multidirectional voltage converters. The controller allows for a common switching scheme regardless of the direction of power transfer, eliminating the need for an indicator of the instantaneous direction of power flow.
Career Highlights
Jifeng Qin is currently employed at Intersil Americas Inc., where he continues to innovate in the field of power electronics. His work has been instrumental in advancing technologies that are crucial for modern electrical systems.
Collaborations
Throughout his career, Jifeng has collaborated with talented individuals such as Zaki Moussaoui and Joseph C Buxton, contributing to a dynamic and innovative work environment.
Conclusion
Jifeng Qin's contributions to power conversion technologies demonstrate his commitment to innovation and excellence. His patents reflect a deep understanding of electrical systems and a drive to improve their efficiency and functionality.