Fast RMS-to-DC measuring converter




RMS-to-DC converter, absolute-value circuit, iterative integrating conversion method, conversion equation, convergence condition, absolute and relative conversion errors


Error analysis of the fast AC voltage RMS measuring converter which uses iterative integrating conversion method is described. Basic equations for the determining were obtained to determine the convergence condition for the error correction process and the process of establishing the converter output voltage, the absolute and relative conversion errors, as well as the number of conversion cycles at which the conversion error becomes less than the specified one. The possibility of achieving a high conversion speed of the considered converter just due to the use of an iteratively integrating average voltage converter as a low-pass filter is shown.


RMS to Digital Conversion Application Guide. 2th Edition by Charles Kitchin and Lew Counts. 1986 by Analog Devices, Inc. Printed in U.S.A.

Clarke B., Fazio M., Scott D. RMS-to-DC Converters Ease Measurement Tasks. Analog Devices. AN-268. Application note.

Sergeyev I. Structural Scheme of the Measurement Converter which Uses an Iteratively Integrating Conversion Method. IEEE: 2016 4nd International Conference. – October 18–20, 2016: abstracts. – K., 2016. – P. 210-213.

Sergeyev I. Measurement Converter which Uses an Iteratively Integrating Conversion Method. XIII Int. Conf. AVIA-2017, 19-21 April 2017. – К., 2017. – Р. 3.18-3.23.

Sergeyev I. Analysis of the Generalized Structural Scheme of the Iterative-Integrating Measuring Convertor. Electronics and Control Systems. – No. 2(52). – K.: NAU, 2017. – P. 52-57.

Sergeyev I. On the Question of Analyzing of the Interatively Integrating Measuring Converter. IEEE: 2017 4nd International Conference (APUAVD). – October 17–19, 2017: abstracts. – K., 2017. – P. 259-261.