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In recent years, with the rapid development of LED lighting, the market share of LED capacitors has also increased, but due to the different product characteristics of various companies, the design of LED capacitors has changed frequently. It is understood that the current aluminum electrolytic capacitors are commonly used in lead-type, patch-type and conductive polymer type only a small number of enterprises in the application, and considering the limitation of the board area, the miniaturization of the capacitor is considered to be an inevitable trend of future development. .jpg)
Liu Yongzhen, general manager of Emerald, believes that the breakthrough in the capacitor industry is reflected in how to use less in quantity and in size. Therefore, the future of capacitor products must be in the direction of safety, longer life and smaller size.
Liu Yongwei introduced that the company's solid-state capacitors have excellent frequency characteristics, and the rate of change from 120HZ to 100KHZ is extremely small. In the greatly improved filter high-frequency filtering effect, the company's capacitor products can be replaced with the original liquid capacitor 1/3 or lower capacity, laying the foundation for the realization of circuit miniaturization.
However, Liu Yongyan said frankly that after the miniaturization of the capacitor, the improvement of the upstream material end must be considered, because the miniaturization requires higher and higher performance of the product capacitor, and the fluidity and impurity content are the most stringent tests for the upstream material supplier.
He also said, "With the miniaturization of capacitor products, the matching equipment and processes must be further improved, especially the degree of automation and precision, and the challenges of product reliability will become increasingly prominent."
However, there are also opinions on the development trend of miniaturization of capacitor products. Shen Dalin, director of electronic products of Fujian Yunxing, revealed that with the rapid replacement of LED products, the time for experimental verification of LED products is extremely short, so that LED engineers have reduced the cycle of product verification, and even simplified the use of aluminum electrolytic capacitors. Detection or miniaturization is the standard theory, which is a great risk and challenge for the application of electrolytic capacitors.
"The life of electrolytic capacitors determines the life of LED lamps, so the choice of electrolytic capacitors should be very cautious. The size of the capacitors cannot be cut across the board. On the contrary, it is important to increase the volume to the heat dissipation and ripple resistance of the electrolysis. Help." Shen Dalin said. 
LED capacitor miniaturization
[Text / Gan Qin] Capacitor as a kind of energy storage and filter components, is the core component of the entire LED power supply. It mainly has functions such as bypass, decoupling, filtering and energy storage. Among many functions, the most important function of the capacitor is to maintain a stable voltage. Therefore, for a long-term stable operation of the power supply, the capacitor plays an irreplaceable role.