Let China's intelligent sine wave light illuminate the world's stage

The Science and Technology Innovation Project of the Ministry of Culture "Fiber Optic, Network, Intelligent Sine Wave AC Power Supply Voltage and Dimming Controller" is undertaken by Guangzhou Siquande Lighting Co., Ltd., and aims to replace low efficiency, high energy consumption and large interference with energy-saving and environmentally friendly green products Thyristor dimmer product; develop China's intelligent sine wave dimming technology.

Aiming at the problems of waveform distortion in the traditional thyristor voltage regulator circuit and the large power consumption and complex circuit in the power switch voltage regulator circuit, a sine wave AC power supply voltage regulator driver based on integrated circuit chip control technology is designed to form The serialization of intelligent sine wave dimming projects has filled the gap in the application of intelligent sine wave dimming in domestic stage, TV station, theater, and tourist attraction projects.

        The project was established in 2010 and passed the expert appraisal in May 2012. At the appraisal and acceptance meeting, the Ministry of Culture and Science and Technology organized from the China Academy of Arts and Technology, Shanghai Theater Academy, National Theater Technology Standardization Committee, China Guangdong International Architectural Design and Research Institute, the People's Liberation Army Air Force Political Department Cultural Regiment, Anhui Radio and Television Station, etc. The acceptance expert committee composed of experts and scholars of scientific research institutes, universities and user representatives, and the expert group highly praised the achievements of the project. Conclusion: This project combines pulse width modulation (PWM) and sine wave (IGBT) time-sharing technology, which is original. The application of this technology can reduce the high loss and high temperature rise of IGBT transistors during operation, and combine the IGBT intelligent sine wave dimming technology with optical fiber/network technology to improve the advanced and practicality of the project. The research and development of the project has invention patents and independent intellectual property rights. The product performance and indicators of the project have reached the international advanced and domestic leading technical level. This project has practical significance in reducing harmonic interference, solving the problems of dimmers on sound and image systems, and promoting new dimming technology in the performing arts industry, and has broad market application prospects. The acceptance expert committee unanimously agreed that the project results passed the acceptance.