DocumentCode
1134572
Title
Multi-Level Balanced Isolated Floating Difference Amplifier
Author
Tung, Yung-Cheng ; Jeng, Shyr-Long ; Chieng, Wei-Hua
Author_Institution
Dept. of Mech. Eng., Nat. Chiao-Tung Univ., Hsinchu
Volume
55
Issue
10
fYear
2008
Firstpage
3016
Lastpage
3022
Abstract
An innovative amplifier is proposed for applications involving high capacitive load and large voltage output swing, such as piezoelectric (PZT) actuator drivers. This amplifier is configured in a multi-level arrangement with floating amplifiers, yielding a high voltage gain as a sum of all individual gains from its operational amplifiers. The merits of such an amplifier also include a wide bandwidth and high potential power. Experiments using a six-level arrangement demonstrate a 100 kHz bandwidth with plusmn200 V output swing for different capacitive loadings.
Keywords
differential amplifiers; operational amplifiers; wideband amplifiers; PZT actuator driver; amplifier configuration; bandwidth 100 kHz; capacitive loading; multilevel balanced isolated floating difference amplifier; operational amplifiers; piezoelectric actuator driver; six-level arrangement; voltage output swing; Floating power supplies; Piezoelectric (PZT) actuator,; floating power supplies; piezoelectric (PZT) actuator;
fLanguage
English
Journal_Title
Circuits and Systems I: Regular Papers, IEEE Transactions on
Publisher
ieee
ISSN
1549-8328
Type
jour
DOI
10.1109/TCSI.2008.923283
Filename
4490317
Link To Document