An electronically controlled current-mode triangular/square wave generator employing MO-CFTAs

Author

Inchan, Surasak ; Satthaphol, Pracharat ; Pipatthitikorn, Paisit ; Siripruchyanun, Montree

Author_Institution

Dept. of Electr. Eng., Muban Chombueng Rajabhat Univ., Ratchaburi, Thailand

fYear

2013

fDate

15-17 May 2013

Firstpage

1

Lastpage

4

Abstract

A new current-mode triangular/square wave generator based on MO-CFTAs (Multiple output current follower transconductance amplifiers) is presented in this paper. The circuit description is very simple, its construction consists of 2 MO-CFTAs and 1 grounded capacitor without any external resistor. The output frequency and triangular/square wave amplitudes can be electronically/independently tuned via corresponding input bias currents. With mentioned features, it is very suitable to realize in a monolithic chip. The PSpice simulation results are depicted, and agree well with the theoretical anticipation. The maximum power consumption is approximately 1.48mW at ±1.5V power supply.

Keywords

capacitors; current-mode circuits; electric current control; operational amplifiers; square-wave generators; MOCFTA; PSpice; current mode triangular wave generator; grounded capacitor; input bias currents; monolithic chip; multiple output current follower transconductance amplifiers; square wave generator; Capacitors; Educational institutions; Electrical engineering; Frequency control; Generators; Integrated circuits; Simulation; Current-mode; MO-CFTA; Schmitt trigger; Triangular/Square wave generator;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON), 2013 10th International Conference on

Conference_Location

Krabi

Print_ISBN

978-1-4799-0546-1

Type

conf

DOI

10.1109/ECTICon.2013.6559595

Filename

6559595