Full-wave rectifiers based on operational transconductance amplifiers

The implementation of full-wave rectifiers using operational transconductance amplifiers (OTAs) as only main active circuit elements is presented in this paper. The proposed scheme makes use of the characteristic of the differential amplifier inside the OTA and avoids the use of diodes. The typical...

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Bibliographic Details
Published in:	International journal of electronics and communications Vol. 61; no. 3; pp. 195 - 201
Main Authors:	Jongkunstidchai, Chaiwat, Fongsamut, Chalermpan, Kumwachara, Kiattisak, Surakampontorn, Wanlop
Format:	Journal Article
Language:	English
Published:	Elsevier GmbH 01-03-2007
Subjects:	Bipolar-OTA Electronically tunable Full-wave rectifier Voltage-to-current Voltage-to-current Bipolar-OTA Full-wave rectifier Electronically tunable
Online Access:	Get full text
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Summary:	The implementation of full-wave rectifiers using operational transconductance amplifiers (OTAs) as only main active circuit elements is presented in this paper. The proposed scheme makes use of the characteristic of the differential amplifier inside the OTA and avoids the use of diodes. The typical problems of the OTA circuit, the input voltage swing limitation and the temperature dependence of the OTA transconductance gain, have been improved. Simulation and experimental results demonstrate the performance of the proposed rectifier are included.
Bibliography:	ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23
ISSN:	1434-8411 1618-0399
DOI:	10.1016/j.aeue.2006.04.001