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POWER AMPLIFIER

Power Amplifier

The purpose of power amplifier is to provide power to the vibrator's armature coil. The power is in the form of Voltage & Current. In simple terms the velocity (armature speed) is proporational to voltage and force or acceleration is proporational to current. To achieve this function it amplifies the output signal of vibration controller/sine wave generator, sufficiently to drive the exciter to the desired vibration level. The D.C. supply to create the static magnetic field is also built in.

Specifications

Model : MPA0100 to MPA 35K
Power Output : 100VA to 35 KVA
Input Impedance : 10 K ohms
Mode of coupling : Dirct
DC stability : Better than 0.2%
Input sensitivity : 1 V rms for full output%
Power Supply
  
: 220V+10% 1ø AC mains up to 1 KVA capacity
410V+10% 3ø AC mains above 1 KVA capacity

Features

  • Protection Indicators For Over Current & Over Drive
  • High-Speed Class D Switching Amplifiers
  • Rack Mounted Modular Construction
  • Low Distortion & High Power Gain
  • Safe And Relible Operation
  • Extensive Built In Protection
  • Integral Cooling