Film Capacitors For High Temperature Switches And Power Electronics Applications Above 125°C*

Focus:

The availability of wide-bandgap semiconductors capable of high-temperature operation is creating requirements for high-temperature capacitors, particularly in emerging applications such as traction inverters for electric vehicles. After discussing the application drivers for high-temperature capacitors, this presentation provides information on the currently available capacitor dielectric options and the high-temperature dielectric materials under development by Electronic Concepts (ECI). The capabilities and limitations of the existing dielectic materials and barriers to their development are discussed. Performance of ECI’s proprietary dielectric materials is compared to that of the existing dielectrics, especially bi-axially oriented polypropylene (BOPP) which is the dominant dielectric for power capacitors. New capacitors built with ECI’s high-temp dielectrics are described and ongoing R&D efforts are outlined.

What you’ll learn:

• How to understand the power capacitor options available for high-temperature applications
• How to understand how the different film capacitor dielectric materials compare, particularly for use in high temperature applications

Notes:

*This material was originally presented at APEC 2015.

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Author & Publication:

Joe Bond, Electronic Concepts, Eatontown, NJ, How2Power Today, Oct 15 2015

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