NASA NTRS · 19850000291
Efficient Power Amplifier for Motor Control
Abstract
Pulse-width-modulated amplifier supplies high current as efficiently as low current needed for starting and running motor. Key to efficiency of motor-control amplifier is V-channel metal-oxide/semiconductor transistor Q1. Device has low saturation resistance. However, has large gate input capacitance and small margin between its turn-on voltage and maximum allowable gate-to-source voltage. Circuits for output stages overcome limitations of VMOS device.
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Brown, R. J.. 1986-01-01. Efficient Power Amplifier for Motor Control. https://ntrs.nasa.gov/citations/19850000291
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