VSA-H Series Switching Power Amplifier
  • Standard 8kVA module, modulated and adaptive
  • Latest IGBT technique, with high withstand voltage and power
  • Sophisticated MCU+DSP+FPGA framework
  • High efficiency D class power switching, 3-sigma peak current
  • Advanced digital loop control algorithms
  • Switching frequency up to 150kHz
  • Signal-to-noise ratio > 65dB
  • Parallel operation current imbalance < 1%
  • Energy efficiency ratio > 93%
  • Dedicated and considerable Interlocks protections

VSA-H Series Switching Power Amplifier is designed with latest IGBT technique and MCU+DSP=FPGA framework to ensure high power availability and high safety. The single power module is designed as standard 8 kVA output with large peak power margin. This feature allows VSA-H series power amplifier to be qualified in working with most kinds of electro-dynamic shakers. Different numbers of module can be combined as per-requirement of actual power capacity, without replacing the rack.
Advanced MCU+DSP+FPGA framework is used in VSA-H series power amplifier with digital control to ensure high safety of each module and the whole system, to avoid collapse of whole system due to single module failure. VSA-H series power amplifier is also designed based on integrated logical unit, power unit and control unit, with obvious advantages of reliability, flexible configuration, energy saving and easier maintenance.