Aluminum electrolytic capacitors stabilize dc buses in motor drives
The KYOCERA AVX aluminum electrolytic capacitor portfolio gives motor controller designers bulk filtering, dc-link stabilization, and power buffering options across wet, conductive polymer, and hybrid constructions.
Motor controllers need a bus voltage and a clean transient response. Aluminum electrolytic capacitors are used in the KYOCERA AVX three-phase brushless dc motor controller to improve power quality. They also provide the drive voltage that the motor needs to work.
In world motor and motion control hardware capacitors do a lot more than just filter. They handle power quality and electromagnetic interference filtering. These aluminum electrolytic capacitors are good for filtering, power stabilization and peak current support, and can be used in controllers and assemblies.
The range of capacitors is very wide and is split into three groups: electrolytic, hybrid aluminum electrolytic and conductive polymer aluminum electrolytic. This can balance cost against factors such as equivalent series resistance, higher ripple current capability, longer lifetime and stronger temperature tolerance.
The size of the package is also important in drive electronics. The KYOCERA AVX aluminum chip capacitor range delivers capacitance per volume in small packages. The polymer and hybrid versions are even better and can handle higher ripple current, inrush current and high temperatures.
This means that the KYOCERA AVX portfolio can be used for power networked motors and larger inverter stages. The wet and hybrid series are used in equipment, filtering circuits and power supplies. For people who design motor drives this means they can get products for cost bulk storage and lower loss higher ripple positions around the power stage.