Table of Contents
ISRN Electronics
Volume 2013, Article ID 390160, 8 pages
Research Article

Voltage Mode Astable Multivibrator Using Single CDBA

1Department of Electronics and Communication Engineering, Delhi Technological University, Bawana Road, Delhi 110042, India
2Department of Electronics Engineering, Indian School of Mines, Dhanbad, Jharkhand 826004, India

Received 21 January 2013; Accepted 14 February 2013

Academic Editors: H. A. Alzaher and H.-C. Chien

Copyright © 2013 Rajeshwari Pandey et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


This paper aims at presenting three voltage mode square wave generator circuits using single current differencing buffered amplifier (CDBA), a recently proposed mixed mode building block. The first proposed circuit produces a variable frequency output having fixed duty cycle, whereas the rest of the circuits have variable duty cycle. One of the circuits uses passive element adjustment to control the duty cycle, whereas electronic control is used in the other circuit. The workability of the proposed circuits is confirmed through SPICE simulations and experimental work.