DocumentCode
806205
Title
Design and Analysis of Pulsewidth-Modulated Amplifiers for DC Servo Systems
Author
Tal, Jacob
Author_Institution
Department of Electrical Engineering, University of Utah, Salt Lake City, UT 84112.
Issue
1
fYear
1976
Firstpage
47
Lastpage
55
Abstract
The use of pulse width-modulated amplifiers for dc servo systems, in order to reduce the power dissipation in the output stage is proposed. The amplifier transistors can be switched in different sequences, and the amplifier will operate accordingly in three possible modes, namely the bipolar, the unipolar, and the limited unipolar modes. The principle of operation and the mathematical model for each case are described along with the special features of this amplifier which include the power dissipation in the motor and the selection of the switching frequency.
Keywords
DC motors; Operational amplifiers; Power amplifiers; Power dissipation; Pulse amplifiers; Pulse width modulation; Servomechanisms; Space vector pulse width modulation; Switches; Voltage;
fLanguage
English
Journal_Title
Industrial Electronics and Control Instrumentation, IEEE Transactions on
Publisher
ieee
ISSN
0018-9421
Type
jour
DOI
10.1109/TIECI.1976.351347
Filename
4159192
Link To Document