Cautions using film capacitors

Cautions:

1. Application conditions

2. Working voltage status

3. Frequency of voltage change

4. Effective current and peak current flowing through the capacitor

The main role of film capacitors in power electronic circuits:

1. Bypass

2. Buffering and clamping

3. Resonance

4. Smoothing and DC support

5. Rapid discharge

6. Power supply electromagnetic interference suppression

Film capacitor performance requirements:

1. The lowest possible ESR

2. The capacitance that meets the requirements

3. The rated effective current and peak current that meet the requirements