Current-controllable monostable multivibrator with retriggerable function

Authors:
Yu-Kang Lo;Hung-Chun Chien
Affiliations:
Department of Electronic Engineering, National Taiwan University of Science and Technology, No. 43, Sec. 4, Keelung Road, Taipei 10607, Taiwan, R.O.C.;Department of Electronic Engineering, Jinwen University of Science and Technology, No. 99, Anchung Road, Hsintien City, Taipei 23154, Taiwan, R.O.C.
Venue:
Microelectronics Journal
Year:
2009

Citing 1
Cited 3

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Abstract

This paper presents a novel current-controllable monostable multivibrator, which is composed of three operational transconductance amplifiers (OTAs), two grounded resistors, and one grounded capacitor. The pulse width and height of the output signal can be adjusted through the bias currents of OTAs and external resistors. In addition, this new monostable circuit features a retriggerable function that can efficiently overcome the problem of the recovery time. The proposed retriggerable monostable multivibrator including the parasitics and slew rate (SR) effect is analyzed in detail. A prototype circuit is built to conduct tests. Experimental results are shown to confirm the theoretical analysis. The presented current-controllable monostable circuits displays good linearities of current-to-pulse width and current-to-pulse height. Also the temperature stabilities are acceptable.