Company Filing History:
2 out of 42 
2 out of 3 Years Active: 2013-2020
Title: Innovations of Quanqing Wu in LED Technology
Introduction
Quanqing Wu is a notable inventor based in Shanghai, China. He has made significant contributions to the field of LED technology, holding a total of 4 patents. His work focuses on enhancing the efficiency and power factor of LED driving circuits, which are crucial for modern lighting solutions.
Latest Patents
One of his latest patents is titled "LED driving circuit and method for balancing efficiency and power factor." This invention features a circuit that includes a voltage input module, an LED load, a constant current control module, and a current turn-off slope control module. The design allows for a balance between efficiency and power factor by adjusting the turn-off slope of the current flowing through the LED load. When the input voltage exceeds a set threshold, the current is turned off to reduce power consumption, while maintaining a constant power output across a wide range of input voltages.
Another significant patent is the "Single-segment linear constant-power LED driving circuit and method." This circuit comprises a voltage input module, an LED load, a power switch tube, a sampling resistor, and an over-voltage control module. The current control module limits the peak current of the LED load, ensuring that the average current remains constant across varying input voltage periods. This innovation also turns off the LED load when the input voltage is below a certain threshold, further optimizing power consumption.
Career Highlights
Quanqing Wu has worked with several prominent companies in the semiconductor and technology sectors. Notable among these are BCD Semiconductor Manufacturing Limited and China Resources Powtech (Shanghai) Co., Ltd. His experience in these organizations has contributed to his expertise in LED technology and circuit design.
Collaborations
Throughout his career, Quanqing Wu has collaborated with talented individuals such as Jun Hui Liu and Guocheng Li. These partnerships have likely fostered innovation and the development of advanced technologies in the field.
Conclusion
In summary, Quanqing Wu is a distinguished inventor whose work in LED technology has led to several important patents. His innovations focus on improving efficiency and power factor in LED driving circuits, making significant strides in the field. His contributions continue to influence the development of energy-efficient lighting solutions.
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