Capacitor technical knowledge, principles and fundamentals
Polyester capacitor refers to the use of two pieces of metal foil as electrodes, sandwiched in an extremely thin insulating medium, and rolled into a cylindrical or flat cylindrical core. The medium is polyester, polyester film capacitor, with a high dielectric constant, small volume, and large capacity , Better stability, suitable for bypass capacitors. Outstanding advantages: [...]
Ceramic capacitors have a variety of uses, and they play different roles in different circuits.Typical ceramic capacitor applications are divided into four types, namely coupling, decoupling, smoothing, and filter. This will be explained in detail below,let us take a look. Coupling of ceramic capacitors When a ceramic capacitor is used for a coupling function, its DC component [...]
There are many reasons that affect the life of aluminum electrolytic capacitors. Overvoltage, reverse voltage, high temperature, rapid charge and discharge, etc. Under normal use, the biggest impact is temperature, because the higher the temperature, the faster the evaporation loss of the electrolyte. It should be noted that the temperature here does not refer to the [...]
The film capacitor has many excellent characteristics, so it is a capacitor with excellent performance. The characteristics of film capacitors are mainly as follows: non-polarity, high insulation resistance, excellent frequency characteristics (wide frequency response), and small dielectric loss. Based on the above advantages, film capacitors are widely used in analog circuits. Especially in the part where [...]
The CBB capacitor is a metallized polypropylene film series structure type, which can resist high voltage and large current impact, has small loss, excellent electrical performance, high reliability and self-healing performance. Features of CBB capacitor:No polarity, high insulation resistance, excellent frequency characteristics, and low dielectric loss;High dielectric constant, small size, large capacity and good stability;Small dielectric [...]