Bandwidth enhancement of an insulated voltage to voltage transducer via digital compensation for industrial applications

Author

Antona, Gabriele D. ; Ferrero, Alessandro ; Ottoboni, Roberto

Author_Institution

Dipt. di Elettrotecnica, Politecnico di Milano, Italy

Volume

1

fYear

1998

fDate

18-21 May 1998

Firstpage

380

Abstract

ΣΔ isolation linear amplifiers are an interesting alternative to more expensive transformers or Hall effect transducer for the realization of insulated high bandwidth acquisition channels for DSP-based digital control systems. In order to guarantee a good accuracy, a dynamic calibration algorithm has been developed. In this paper a methodology is proposed for the identification of a digital method for the automatic calibration of the transducer. The results of this approach are confirmed by experimental tests

Keywords

calibration; compensation; digital control; frequency response; industrial control; sigma-delta modulation; transducers; ΣΔ isolation linear amplifiers; DSP-based digital control systems; acquisition channels; automatic calibration; bandwidth enhancement; digital compensation; dynamic calibration algorithm; insulated voltage to voltage transducer; Bandwidth; Costs; Hall effect; Insulation; Linearity; Optical amplifiers; Optical distortion; Optical modulation; Transducers; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Instrumentation and Measurement Technology Conference, 1998. IMTC/98. Conference Proceedings. IEEE

Conference_Location

St. Paul, MN

ISSN

1091-5281

Print_ISBN

0-7803-4797-8

Type

conf

DOI

10.1109/IMTC.1998.679810

Filename

679810