Yifei Qian

Title: Yifei Qian: Innovator in Voltage Detection and Power Management

Introduction

Yifei Qian is a prominent inventor based in Shanghai, China. He has made significant contributions to the field of electrical engineering, particularly in voltage detection and power management systems. With a total of 5 patents to his name, Qian's work showcases his innovative approach to solving complex electrical challenges.

Latest Patents

One of Yifei Qian's latest patents is a "Multilevel Voltage Detector Circuit." This invention discloses a multi-level voltage detector circuit that includes a voltage dividing circuit formed by a first resistor string and a second circuit. The first resistor string consists of n+1 voltage dividing resistors connected in series, which outputs n divisional voltages. The second circuit provides n lower voltage dividing resistors, allowing for the detection of kth rise and fall detection points of a power supply voltage. This innovative design enhances the efficiency of voltage detection in various applications.

Another notable patent is the "System for Turning Off Power Consumption of Auxiliary Startup Circuit." This application describes a system that generates a switch control signal based on a reference current output by a circuit to be started up. The system effectively manages power consumption by controlling the auxiliary startup circuit, ensuring that power is turned off after the circuit is powered on. This invention is crucial for improving energy efficiency in electronic devices.

Career Highlights

Yifei Qian has worked with notable companies such as Shanghai Huali Microelectronics Corporation and Shanghai Huali Integrated Circuit Corporation. His experience in these organizations has allowed him to develop and refine his innovative ideas, contributing to advancements in microelectronics and integrated circuits.

Collaborations

Throughout his career, Qian has collaborated with talented individuals, including Yu Jia and Haifeng Wang. These partnerships have fostered a creative environment that encourages the exchange of ideas and the development of groundbreaking technologies.

Conclusion

Yifei Qian's contributions to the field of electrical engineering through his patents and collaborations highlight his role as an influential inventor. His innovative solutions in voltage detection and power management continue to impact the industry positively.