DocumentCode
422763
Title
Study of switching power amplifier for active magnetic bearing
Author
Liu, Shuqin ; Chen, Darong ; Liu, Shuqin ; Xu, Feng
Author_Institution
Dept. of Precision Instrum., Tsinghua Univ., Beijing, China
Volume
3
fYear
2004
fDate
14-16 Aug. 2004
Firstpage
1539
Abstract
In view of some disadvantages of the discrete component switching power amplifier for active magnetic bearing (AMB) such as troublesome debugging, low reliability and distortion of input-output curves, a new power amplifier is studied for AMB. It is designed by use of integrated pulse width modulate (PWM) switching power amplifier SA60, and the interface circuits between the control circuits and the power amplifier are designed. The experiment results showed that the integrated switching power amplifier is advantageous than the discrete component power amplifier in input-output characteristics, at last some improved methods are proposed.
Keywords
magnetic bearings; power amplifiers; pulse width modulation; switching circuits; PWM; active magnetic bearing; control circuits; discrete components; input-output characteristics; integrated pulse width modulation; interface circuits; reliability; switching power amplifier; troublesome debugging;
fLanguage
English
Publisher
ieee
Conference_Titel
Power Electronics and Motion Control Conference, 2004. IPEMC 2004. The 4th International
Conference_Location
Xi´an
Print_ISBN
7-5605-1869-9
Type
conf
Filename
1376973
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