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MRI Gradient Amplifier for 3.0T mainstream ultra-high field MRI systems

Product features

  • Cost effective three-axes Gradient Amplifier cabinet for mainstream MRI systems
  • 1980V / ±900Ap / 400Arms
  • Patented end stage
  • Integrated PT high precision current sensors
  • Low EMI by integrated output filter
  • Isolated power supply with PFC
  • Digital control and advanced diagnostics
  • High reliability of >30khrs.
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NG2250 2 Shadow Resized
1980V / 900Ap / 400Arms
Benchmarked top-of-market fidelity
Extreme reliable & lifetime over 10 years
Advanced control and diagnostics with NG Tool Suite


Ngtoolsuite Icon

NG Tool Suite

NG Tool Suite enables easy access across NG Series product portfolio from initial integration to in-field remote diagnostics via Ethernet connection HMI


Control Interfacing

Seamless integration into new and current systems by using our flexible control interface. Existing interface can be easily installed in the whole NG series portfolio.


White Labeling

Customer specific branding is possible, to align within customer product portfolio.


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 1200   1980 Vdc
Mains input power   90   kVA
Available power to end stage   61   kW per axis
    82   kW for three axis

Output performance

  Min Typical Max Unit
Output voltage (at Ipeak)    +/-1900    V
Output current   900   Apk
    400   Arms Continuous or DC
Load range 0.22   4.7 mH
   50   350
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  <70µs      
Linearity <100ppm      
Bandwith      >10 kHz
Total harmonic distortion <0.4% at 360Arms/200Hz  
  <0.8% at 360Arms/1kHz  
Initial offset: neglectable (auto-zero )         
High precision current sensors included        

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