Guoding Dai

Title: Guoding Dai: Innovator in Power Factor Correction Technologies

Introduction

Guoding Dai is a notable inventor based in Jiangsu, China. He has made significant contributions to the field of electrical engineering, particularly in power factor correction technologies. With a total of 2 patents, his work focuses on enhancing the efficiency and safety of electrical circuits.

Latest Patents

One of Guoding Dai's latest patents is an output over-voltage protection circuit for power factor correction. This innovative circuit includes a chip external compensation network, a chip external resistor divider network, a static over-voltage detection circuit, a dynamic over-voltage detection circuit, and a compare circuit. The chip external compensation network is connected between the chip external resistor divider network and the dynamic over-voltage detection circuit. It converts the dynamic over-voltage signal into a dynamic current signal, which is then conveyed to the dynamic over-voltage detection circuit. This circuit ultimately produces a dynamic over-voltage signal (DYOVP), which is inputted into the compare circuit. The compare circuit converts the DYOVP into a voltage compared with a reference voltage and outputs an over-voltage control signal (OVP), achieving a dynamic over-voltage protection function.

Another significant patent by Guoding Dai is a high-voltage heavy-current drive circuit applied in a power factor corrector. This circuit comprises a current mirroring circuit, a level shift circuit, a high-voltage pre-modulation circuit, a dead time control circuit, and a heavy-current output stage. The heavy-current output stage utilizes a Darlington output stage structure to increase the maximum operating frequency of the drive circuit. The stabilized breakdown voltage characteristic of a voltage stabilizing diode is employed to ensure the drive circuit operates within a safe voltage range. Additionally, the inclusion of dead time control in the level shift circuit prevents momentary heavy-current from a power supply to the ground during the level conversion process, while also reducing the static power consumption of the drive circuit.

Career Highlights

Guoding Dai is currently associated with CSMC Technologies Fab2 Co., Ltd. His work at this company has allowed him to focus on developing advanced technologies that improve electrical circuit performance.

Collaborations

He has collaborated with notable coworkers, including Xiaohui Ma and ChaoYao Xue, contributing to various projects in the field of electrical engineering.

Conclusion