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NG500 1.2

Cost effective MRI Gradient Amplifier for 1.5T high field MRI systems

Product features

  • Cost effective three-axis Gradient Amplifier cabinet
  • 990V / ±630Apk / 230Arms
  • Immune to condensation
  • Integrated high precision current sensors
  • Low EMI by integrated output filter
  • Isolated power supply with PFC
  • Digital control and advanced diagnostics
  • Auto-tuning
  • High reliability of >50khrs.
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NG500 Edit No Wheels Resized1
990V / 630Ap / 230Arms
Best in class price / performance
Extreme reliable & lifetime over 10 years
Advanced control and diagnostics with NG Tool Suite


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Isolated power supply

  Min Typical Max Unit
Mains 380   480 VAC +/- 10%
  50   60 Hz
Mains switch included        
Power Factor Correction (PFC):     Unity power factor & low harmonics 
Programmable bus voltage 600   990 Vdc
Mains input power   32   kVA
Available power to end stage   14   kW per axis
    28   kW for three axis

Output performance

  Min Typical Max Unit
Output voltage (at Ipeak)    +/-940    V
Output current    630   Apk
    230   Arms Continuous or DC
Load range 0.22   4.7 mH
   50   200
Patented end stage included        
Integrated output filter (fcorner<switching frequency)         

Output accuracy

  Min Typical Max Unit
Settling time   error<1% after 100µs     
    error<0.4% after 150µs
    error<0.1% after 250µs
Drift offset typical    5mA/°C    
Drift gain typical    10ppm/°C    
Propagation delay  <70     µs
Linearity <100     ppm
Bandwith      >10 kHz
Total harmonic distortion <0.4% at 230Arms/200Hz  
  <0.8% at 230 Arms/1kHz  
Initial offset: neglectable (auto-zero )         
High precision current sensors included