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Efficient Power Amplifier for Motor ControlPulse-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.
Document ID
19850000291
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Brown, R. J.
(Navtrol Co.)
Date Acquired
August 12, 2013
Publication Date
January 1, 1986
Publication Information
Publication: NASA Tech Briefs
Volume: 9
Issue: 3
ISSN: 0145-319X
Subject Category
Electronic Components And Circuits
Report/Patent Number
GSC-12807
Accession Number
85B10291
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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