Safety-regulated capacitors are used in such occasions that the failure of the capacitor will not lead to electric shock and will not endanger life safety.
There are many main occasions for the application of safety-regulated capacitors, mainly: resistive buck circuit, EMI filtering two.
Capacitance drop circuit is to use the capacitance generated by the safety capacitor in a certain AC signal frequency to limit the larger working current.
EMI filter is the main role is to filter out the external power grid of high-frequency pulses on the power supply interference, but also play a role in reducing the switching power supply itself electromagnetic interference.
Ηλεκτρολυτικός πυκνωτής 15000uf 80v

Ηλεκτρολυτικός πυκνωτής 15000uf 80v

The general EMI filter has two sets of capacitors, namely, cross-border in the power line between the differential mode suppression role of the X capacitor and connected to the power line and ground between the common mode suppression role of the Y capacitor. For the X capacitor and its rated voltage and grid voltage equivalent, its capacity can be selected for a larger, typical value of 0.05µF ~ 1µF. For the Y capacitor value allowed the larger the better, but if the Y capacitor failure will lead to electric shock, so there is a limit to its larger leakage current current.
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