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