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A dual translinear-based true RMS-to-DC converter

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2 Author(s)
V. Surakampontorn ; Fac. of Eng., Res. Center for Commun. & Inf. Technol., Bangkok, Thailand ; K. Kumwachara

A new design technique for a true rms-to-dc converter is implemented around a dual translinear-based squarer circuit. A dual translinear loop and current mirrors are the basic building blocks in this realization scheme, and the computation is carried in current-mode. The conversion circuit consists of a squarer, a low-pass filter and a square-root circuit. Since no rectifier function is required, this converter configuration enables us to obtain a wideband frequency response. The input signal can he voltage or current. In addition, the modification of the converter to construct a vector summation computing circuit is also discussed

Published in:

IEEE Transactions on Instrumentation and Measurement  (Volume:47 ,  Issue: 2 )