Performance Controls, Inc. PWM, pulse width modulation, pulse width modulated, amp, amplifier, power amplifier, MRI, magnetic resonance image, MRI scan, gradient amplifier, shim amplifier, motor drive, motor controller, servo amplifier, motion control, agv, vehicle, radar, antenna, downhole, down-hole, beam, beam steer, scan amp, ion implanter, semiconductor device manufacture, particle accelerator, particle steer Performance Controls, Inc. (PCI) designs PWM amplifiers and motor drives for high precision, high power, and high reliability applications.