Capacitors for Power Electronics
Power electronics is the technology used for the
efficient conversion, control and conditioning of electric
power, from its input into the system to the desired
electrical power output form.
The power levels encountered in this field vary from less
than one watt in supplies for battery-operated portable
equipment, to thousands of watts in office equipment
power units, to the megawatt range for variable speed
motor drives, and for rectifiers and inverters connected
to local transmission lines in power systems.
FILM AND FOIL CAPACITORS 9
Capacitors in these systems must meet many different
technical requirements, and exhibit various capacitance,
ESR and other characteristics to suit the application.
Our materials for protecting power electronic capacitors
feature:
· Very good electrical insulation
· Stable permittivity over a wide range of frequency
and temperature
· Excellent chemical and thermal aging resistance