NASA NTRS · 19870000380
Simple, Inexpensive Servoamplifier
Abstract
Circuit based on consumer-market audio-amplifier chip. Stereo audio amplifier chip, connected as servoamplifier, supplies more than 1 A to motor. Amplifier used in analog configuration to supply proportional torque to motor, simpler circuits and more efficient use of energy result when utilized in pulse-width-modulation mode. Pulse-width signals generated directly by computer software or external pulse-width-modulation generator.
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Garner, H. Douglas. 1987-09-01. Simple, Inexpensive Servoamplifier. https://ntrs.nasa.gov/citations/19870000380
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