MRI Gradient Amplifier Products

QDCM2100, 3-Axis Gradient Amplifier

Performance Controls designs low-noise, wide bandwidth MRI gradient amplifiers.

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PCI specializes in tackling unique power amplifier challenges. We do that by customizing existing products or by creating completely new designs, always in collaboration with our customers.

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  • 3-Axis Gradient Amplifier System: 2100 Volt, 700 Amp


The QDCM2100 is a pulse width modulated, digitally controlled gradient amplifier system that contains three 2100 VDC, 220 Arms, 700 Apk amplifiers and a mains isolated power supply, intended for use in precision control systems. The amplifier operates from 380-480 VAC, 50-60 Hz three phase mains connected power and provides a precisely controlled, high fidelity output current. The amplifier and power supply are water cooled and packaged in a cabinet 27.5 inch (700 mm) wide with a 74.4 inch (1890 mm) height and 37.4 inch (950 mm) depth. This power amplifier has been designed to operate in a control room environment and has been tested for EMC compliance when operated as part of an imaging system.

As with all of the PCI products, we will partner with our clients to customize the QDCM2100 to meet the requirements for form, fit and function.

Control Electronics

  • Command processing
  • Current loop and modulation control
  • Synchronization
  • Analog and digital I/O
  • Controls and status indicators
  • RS-232 adjustable tuning

Power Electronics

  • Power stage topology
  • Power management
  • Electrical isolation
  • System capacitance
  • Thermal management
  • Instantaneous power device protection

Internal Power Supply

  • Input powered directly from AC Mains
  • 380-480VAC 3 Phase
  • Provides all housekeeping power supplies
  • Labeled compliant to UL60601

Power Interface

  • EMI / RFI suppression
  • Full galvanic isolation to chassis
  • Load and amplifier protection

PCI has a policy of continuous improvement and therefore reserves the right to update this information without notice to correct mistakes or to reflect specification changes. Please contact PCI to ask questions about this product or to confirm its specifications.