How to design a metalized film capacitor?

Proper design of metalized film capacitors requires an understanding of all parasitic parameters' sources and their impacts on the circuit operation. This paper presents a modeling approach based on the complex form of the capacitor impedance to build its equivalent electrical circuit.

What is metallized film capacitor (MFC)?

Metallized film capacitors (MFC) are widely used in pulsed power systems and power electronics applications. The pulse handling capability of MFC is one of important performances and drastically depends on the quality of contact states between the spray and metallization.

Do metallized films capacitors have parasitic parameters?

Proper design of metallized films capacitors requires an understanding of all parasitic parameters sources and their impacts on circuit operation. This paper presents a modeling approach based on the Nyquist diagram to identify different parameters of metallized films capacitors, and build an equivalent electrical circuit.

What is a film capacitor?

Film capacitors are versatile components that can be designed into power electronics for industries ranging from consumer and renewables to automotive, aerospace and military. These capacitors come with very specific advantages including non-polarity, a high insulation resistance, low dielectric losses and self-healing capability.

How is an aluminum can film capacitor made?

The process of making an aluminum (Al) can film capacitor is similar except the round capacitor is not hard pressed; instead it is left round (Figure 11). Then, depending on whether the Al can is oil-filled or dry-filled, the capacitor goes through a process to place the bound capacitor inside the Al shell and fill with oil or resin.

How can film capacitors be optimized?

Film capacitors can be optimized through diferent materials and manufacturing methods. Capacitors are all unique; their fundamentals, the manufacturing processes, advantages and even technology trends are worth highlighting. There are diferent grades and applications critical to considering before choosing the best option.