Converter in the use of safety capacitors

Safety capacitors play various roles in the circuit, such as: filtering, decoupling, bypassing, coupling, tuning, compensation, frequency stabilization, etc. If the production is not good, it may cause malfunction, but If you are using some without passing the safety certification, the consequences are unimaginable. Pay attention to the following points when choosing the converter safety capacitor:

1. Whether the converter safety specification parameter (rated value, capacitance value) conforms to the circuit.

2. The converter safety gauge capacitor pitch length, need to be customized according to the board size.

3. The working temperature of the circuit is different. The temperature of different working scenes is different, and the materials used are different.

4. After selecting the type, it is necessary to look at the capacitance error and whether it meets the demand.

5. The effect of different materials is not the same.

6. Understand external factors that affect demand.

The discharge of the safety capacitor is different from the ordinary capacitor. The charge will remain for a long time after the external power supply is disconnected. If it is touched by hand, it will be charged, and the safety capacitor has no such problem. At the input of the AC power supply, it is generally necessary to add three safety capacitors to suppress EMI conduction interference.

After reading the above introduction, do you have a new understanding of the use of safety capacitors, I hope this article can help everyone!