The role of electrolytic capacitors In the power supply circuit, the rectifier circuit turns AC into pulsating DC, and a larger capacity electrolytic capacitor is connected after the rectifier circuit. Using its charge and discharge characteristics, the rectified pulsating DC voltage becomes a relatively stable DC Voltage. In practice, in order to prevent the supply voltage [...]
Capacitors are commonly used electronic components in electronic equipment. The structure and characteristics of several commonly used capacitors are briefly introduced below for your reference. 1. Aluminum electrolytic capacitor: It is made of an aluminum cylinder as the negative electrode, which is filled with liquid electrolyte, and inserted into a curved aluminum strip as the positive [...]
Varistor is the abbreviation of voltage sensitive resistor, and it is a kind of non-linear resistance element. The resistance of the varistor is related to the voltage applied at both ends. When the voltage applied to the varistor is within its nominal value, the resistance of the resistor presents an infinite state, and almost no current [...]
Aluminum electrolysis basically consists of positive electrode foil + oxide film (cannot exist independently of the positive electrode foil) + electrolytic paper (impregnated with electrolyte) + negative electrode foil + shell + rubber plug + lead + sleeve The first step: the corrosion of aluminum foil: increase the area by tens to hundreds of times, uneven [...]
Characteristics of ceramic capacitors ① Since the dielectric material of the capacitor is Taowa, it has good heat resistance and is not easy to age. ②Porcelain dielectric capacitors can withstand acid, alkali and salt corrosion, and have good corrosion resistance. ③ The low-frequency ceramic material has a large dielectric constant, so the low-frequency ceramic capacitor has [...]