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introduction When it comes to the production of mobile phone lithium-ion batteries, the first thing that comes to mind is Japan's industrialized mechanical assembly line, NOKIO, MOTOLROLA's st...[Details]

 In view of the chaotic market competition in the LED lighting market, many businesses have adopted a vicious price war. It is also very difficult for consumers to understand LED chips as they hav...[Details]

　    The first trick to low noise system design is to apply as much gain as possible in the first stage. The figure below shows two examples of an amplifier front end with a gain of 10. It can be s...[Details]

    Nowadays, white light LED lighting has been put into practical use and industrialized, and its light efficiency has surpassed that of traditional incandescent lamps and fluorescent lamps, fully d...[Details]

LED backlights are becoming more common than CCFLs. LCD display panels with RGB LED backlights can achieve excellent color reproduction, enhancing the viewing experience. Unlike regular CCFLs, RGB ...[Details]

The main circuit of the power supply is shown in Figure 1. It is divided into two parts, the upper part is the voltage source part, and the lower part is the current source part. Each part adopts a...[Details]

　　At present, China's switching power supplies account for 80% of the world market, but we have almost no share in the high-end market. my country is currently short of energy, and the power supply i...[Details]

Assuming that the capacity of capacitor C1 is very large, when the converter is working in the 2nd state, the voltage on capacitor C1 basically remains at UC1. 1) Switching mode 1 (0～TON, see ...[Details]

1. IGBT model 　　The model of IGBT can be found in textbooks. Its gate G is equivalent to a small capacitor of several nanofarads (nF) (temporarily considered), which is similar to MOS tube; its col...[Details]

Figure 1: Typical power architecture for new energy vehicle applications (Source: RECOM) Non-passenger electric vehicles (EVs) range from electric forklifts to tractors to excavators...[Details]

DIGITIMES Research points out that OLED has the advantages of being light, thin, evenly distributed, flexible, and colorful in lighting applications, breaking the impression of traditional ...[Details]

　　The nine-speed adjustable DC power supply is mainly composed of a voltage-stabilized three-terminal adjustable integrated circuit (m31) as the core component. The LM317 adjustable terminal is con...[Details]

According to media reports, the world's fifth largest MLCC manufacturer, Huaxin Technology, recently raised the ex-factory price of MLCC by 20% to cope with tight supply and rising costs. Last month,...[Details]

Forward voltage reduction, dim light (1) One is that the electrode and the light-emitting material are in ohmic contact, but the contact resistance is large, which is mainly caused by low concentrat...[Details]

November 18, 2021 ROHM develops wireless charging modules "BP3621" and "BP3622" that easily enable wireless power supply for small and thin devices ~Using optimized ante...[Details]