Title :
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
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;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 1998. IMTC/98. Conference Proceedings. IEEE
Conference_Location :
St. Paul, MN
Print_ISBN :
0-7803-4797-8
DOI :
10.1109/IMTC.1998.679810
