Technology
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Variable Capacitor
A variable capacitor allows adjustment of capacitance in much the same way that a potentiometer allows adjustment of resistance. Large variable capacitors were developed primarily to tune radio receivers, in which they were known as…
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Capacitor: The core energy storage component of modern electronic devices
A capacitor connected across a DC power source will accumulate a charge, which then persists after the source is disconnected. In this way, the capacitor stores(and can then discharge)energy like a small rechargeable battery. The…
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Discover the Benefits of Aluminum Electrolytic Capacitors
Aluminium electrolytics do not have competition from tantalum or other capacitors in highervoltages as other electrolytics are essentially for low voltage applications. Even in low voltage,they have the advantage of lower cost per unit. There…
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An introduction to the manufacturing process of aluminum electrolytic capacitors
The manufacturing process of aluminum electrolytic capacitors is mainly for the slitting, nailing, impregnation, assembly, casing, aging, testing of positive foil, negative foil, electrolytic capacitor paper, etc.
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Electrolytic capacitor paper and electrolyte
The electrolyte as the negative electrode needs to be loaded, and at the same time, it is also necessary to add a physical barrier between the positive and negative foil to prevent the collision between…
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Acquisition of cathode foil and dielectric film: formation
The positive electrode of the aluminum electrolytic capacitor is made into an uneven corrosive foil, and the dielectric film also needs to be in close contact with the uneven positive or negative foil, and there…
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The treatment process before the formation of aluminum foil
The aluminum foil must also be pre-treated before it can be anodized to form a dielectric film. One of the purposes of pre-treatment is to make the surface state of the aluminum foil as pure…
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Analysis of corrosion factors affecting aluminum electrolytic capacitors
Corrosion is essentially an electrochemical process, and the one that affects aluminum foil corrosion is an intrinsic factor related to the aluminum metal itself, such as the nature, composition, and structure of aluminum; The second…
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Precautions for the use of aluminum electrolytic capacitors
If the voltage is applied in the opposite direction, the circuit will be short-circuited and the capacitor will be damaged. In circuits with unknown or uncertain polarity, use bipolar aluminum electrolytic capacitors.
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Structural characteristics of aluminum electrolytic capacitors
The basic structure of general-purpose aluminum electrolytic capacitors is a foil-wound type. The anode is aluminum metal foil, and the medium is the valve metal oxide film Al2O3 formed on the surface of the anode metal…