The above equation can be transformed into anotherequation to get a ripple current value in accordancewith the frequency of the rated ripple current, each
Some factors can cause the failure of electrolytic capacitors, such as extremely low temperature, capacitor temperature rise (welding temperature, ambient temperature, AC ripple), high voltage, instantaneous voltage, VHF or reverse bias; Among them, the temperature rise is the most important factor affecting the working life (LOP) of electrolytic capacitors.
What is the method of electrolytic capacitor withstand voltage test circuit? The withstand voltage of a capacitor indicates the voltage that the capacitor can withstand when it is used continuously under certain conditions. If the working voltage applied to the capacitor exceeds the rated voltage, the insulating medium inside the capacitor may be broken down, resulting in short circuit between electrodes or serious leakage.
Capacitors play an important role in tuning, bypass, coupling and filtering circuits. Transistor radio tuning circuit to use it, color TV coupling circuit, bypass circuit also need to use it. What are the detection methods for fixed capacitors?
There is an electrolyte material for storing electric charge inside the electrolytic capacitor, which has positive and negative polarity, similar to the battery and can not be reversed. The positive electrode is a metal substrate adhered with an oxide film, and the negative electrode is connected with the electrolyte (solid and non solid) through the metal plate. What is the use of solid state electrolytic capacitor?
The dielectric of liquid electrolytic capacitor is liquid electrolyte. The liquid particles are very active at high temperature and produce pressure inside the capacitor. Its boiling point is not very high, so slurry explosion may occur. The solid capacitor adopts polymer dielectric, and the activity of solid particles at high temperature is lower than that of liquid electrolyte, Its boiling point is also as high as 350 degrees Celsius, so it is almost impossible to have the possibility of slurry explosion. Theoretically, it is almost impossible for solid-state capacitors to explode.
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