MRI Gradient Amplifier Products

GA-150, 1-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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  • 1-Axis Gradient Amplifier: 150 Volt, 150 Amp


The GA150 is a 150 VDC, 75 Arms, 150 Apk pulse width modulated power amplifier, intended for use in precision applications such as MRI scanning and others. The amplifier operates from a single source of power and provides a precisely controlled, high fidelity output current. The amplifier is packaged to fit in a standard 19” rack width with a 5.25” height (3U) and 25.75” depth penetration into the rack. This power amplifier has been designed to operate in a controlled environment and to be enclosed within the overall system enclosure.

Control Electronics

  • Command processing
  • Current loop and modulation control
  • Synchronization
  • Analog and digital I/O
  • Controls and status indicators
  • Pre-set and 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 the high voltage DC Bus
  • Provides all housekeeping power supplies
  • Provides fan power +24V
  • Provides isolation from high voltage DC bus

Power Interface

  • EMI / RFI suppression
  • Linear current sensing
  • Optional 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.