MRI Gradient Amplifier Products

QDCM2100D Gradient Amplifier

Performance Controls designs low-noise, high-power, digital 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 900A Precision Gradient Amplifier System

  • 2100 VDC High Performance Power Supply

  • 100% Digital D-SERIES™ Technology

  • Hi-Speed, Single Fiber Digital Command

  • Rear Panel Utility Access


The QDCM2100D Gradient Amplifier from Performance Controls, Inc. (PCI) is a three-axis pulse width modulated amplifier system. It is rated at 2100 V / 900 Apk / 375 ARMS / 60 kW and offers unrivaled power for the industry’s most precise and demanding gradient control applications. The QDCM2100D’s exceptionally low output noise, high bandwidth and rock-solid stability make it ideally suited for demanding power amplifier tasks found in laboratory and medical applications.

PCI’s new D-SERIES™ technology makes its debut with the QDCM2100D; it is the foundation for many new powerful features. Coupled with PCI’s new InSight™ software toolkit, D-SERIES™ technology gives systems engineers, sequence developers, and field service technicians unprecedented insight and capability for maximizing system performance, lowering overall system costs, and ensuring maximum system uptime.


The QDCM2100D Gradient Amplifier can be used in these and other applications:

  • MRI magnetic field gradient control
  • Particle beam magnetic steering control
  • Any inductive load requiring precise control of large currents across a wide frequency range

Features and Benefits

D-SERIES™ Technology

100% digital amplifier architecture, enabling Advanced System Diagnostics, Integrated Digital Storage Oscilloscope, Sequence Development Assistant and others.

Hi-Speed Fiber Digital Command

Single high-speed fiber optic cable for all 3 axes of command and synchronization. Delivers maximum performance, economy, flexibility, and ease of system integration.

Digitally Adjustable Current Command Delay

User-selectable high-resolution command delay offers independent control for each axis; delay up to 40 usec with 40 nsec delay resolution.

InSight™ Software Toolkit

Single, easy-to-use use graphical user interface for simple control of all amplifier functions.

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.