The ATC capacitor is a capacitor connected across the FireWire – ZeroWire, which is usually used only for the filtering role in the anti-interference circuit, mainly for the differential mode interference to play a filtering role. It can be divided into X1 capacitor, X2 capacitor, X3 capacitor. It has the following main considerations.
1. the capacitor before the AC rectification should use X capacitor.
2. the capacitor must meet the voltage requirement of use, if it exceeds the nominal voltage, it needs to be used in series with exactly the same capacitor (pay attention to the equalization voltage)
3. the capacitor must meet the temperature requirement, that is, the whole machine must meet the working temperature of its X capacitor under the specified working environment, and must not exceed the normal temperature range.
4. need to consider the size of the possible pulse voltage at the input of the circuit, different capacitors bear different size of the pulse voltage, the withstand voltage of the capacitor cannot be less than the peak of the pulse voltage in the circuit.
Elementų apsaugos plokštės elektrolitinis superkondensatorius

Elementų apsaugos plokštės elektrolitinis superkondensatorius

5. When the capacitor is used in the input terminal, it is necessary to prevent the power cord plug from being charged and discharged for a long time due to the charging and discharging process of the capacitor when the power cord is unplugged.
6. Due to the manufacturing process of the capacitor, it often generates a large audio noise, which needs to be combined with the design of the product to choose the noise reduction capacitor.
7. According to the certification standard of the whole machine, choose the X capacitor that meets the certification standard of the whole machine.
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