LED display module power supply topology of the traditional full-color LED display module power supply topologies (without PFC correction), harmonic distortion is very serious impact on the grid. By the engineering department of the observed number of practical projects, the impact of LED display systems for power networks are: 1) The main harmonic currents 3/5/7/9/11 times; 2) superimposed harmonics, causing the system Integrated power factor is low, usually less than 0.75, Hebei led module, far below the national standards; 3) voltage and current waveform distortion serious, is not a standard sine wave. Harmonic distortion may cause adverse effects on the electricity grid and other sensitive equipment, and even to make it work properly, bring legal liability issues associated, for example, lead to the same building in harmonics of a company network server due to a sudden power failure, led module Manufacturers , resulting in losses. Jinan led module manufacturers of full-color LED module uses a power supply topology, led module board production, and so the use of PFC technology is the trend, is the inevitable result of the technological upgrading of the entire industry. led module light source manufacturer of lighting products based on the standard design, and led module production standard, factory direct supply led module, can greatly facilitate the back-end application vendor. Since the light source module already has the desired optical array structure and circuit arrangement, so it can save directly to a terminal at the rear lighting manufacturers of certain key materials and equipment, such as PCB, and SMD aluminum plate welding material (such as solder paste), etc. Since the light source modular, chip equipment will also become a non-mainstream production facilities in the future LED lighting era. Hebei led module, Gao Jin photoelectric, led module manufacturers to provide wholesale from Jinan Optoelectronics Technology Co., Ltd. Gao Jin. Hebei led module, Gao Jin photoelectric, led module manufacturers wholesale Jinan Gao Jin Optoelectronics Technology Co., Ltd. (www.gjlled.cn) this year introduced a new upgrade, the above picture is for reference only, please call the contact or pictures on this page phone, for the latest information, contact: high total.