Title: Chengwen Yan - Innovator in Leakage Detection Technology
Introduction
Chengwen Yan is a notable inventor based in China, recognized for his contributions to the field of electrical engineering. He has developed innovative technologies aimed at enhancing safety and efficiency in electrical systems. His work primarily focuses on leakage detection circuits, which are crucial for preventing electrical hazards.
Latest Patents
Chengwen Yan holds a patent for a "Circuit For Alternating Current And Direct Current Leakage Detection." This circuit is designed to detect both AC and DC leakage currents, providing multiple functionalities such as direct current leakage detection, alternating current leakage detection, and leakage sampling link self-check. The circuit comprises several key components, including a low dropout regulator (LDO) module, a frequency divider module, a logic control module, a Metal-Oxide-Semiconductor (MOS) transistor driving module, a leakage detection coil, a sampling resistor, a programmable gain amplifier (PGA) module, an analog-to-digital conversion (ADC) module, a digital signal processing (DSP) module, and a current limiting module. The design allows for a simple structure by reusing circuits between functional modules, achieving three essential functions with a single leakage current detection coil, thus minimizing application costs.
Career Highlights
Chengwen Yan is currently employed at Qingdao Topscomm Communication Co., Ltd., where he continues to innovate in the field of communication technology. His expertise in leakage detection circuits has positioned him as a valuable asset to his company, contributing to advancements in safety and reliability in electrical systems.
Collaborations
Chengwen Yan collaborates with Jianhua Wang, a fellow innovator in the field. Their partnership enhances the development of cutting-edge technologies and fosters a creative environment for innovation.
Conclusion
Chengwen Yan's work in leakage detection technology exemplifies his commitment to improving electrical safety and efficiency. His innovative circuit design not only addresses critical safety concerns but also reduces costs, making significant contributions to the field of electrical engineering.