Title :
Current-Mode Monostable Multivibrators Using OTRAs
Author :
Lo, Yu-Kang ; Chien, Hung-Chun
Author_Institution :
Dept. of Electron. Eng., Nat. Taiwan Univ. of Sci. & Technol., Taipei
Abstract :
Three nonretriggerable current-mode monostable multivibrators constructed of one operational transresistance amplifier (OTRA) and a few passive elements are presented in this brief. Two of these circuits are operated respectively under positive and negative triggering modes. However, the recovery time cannot be adjusted once the pulsewidth is decided. The third topology, which can work in either triggering mode, features a tunable recovery time. The proposed current-mode monostables are simpler compared to their counterparts composed of operational amplifiers. The circuit operations are described in detail. Experimental results are in good agreement with the theoretical analysis
Keywords :
current-mode circuits; multivibrators; operational amplifiers; trigger circuits; OTRA; circuit operations; current-mode monostables; monostable multivibrators; operational transresistance amplifier; passive elements; tunable recovery time; Capacitors; Circuit topology; Diodes; Electronic circuits; Operational amplifiers; Pulse amplifiers; Pulse circuits; Space vector pulse width modulation; Tunable circuits and devices; Voltage; Current-mode monostable multivibrator; nonretriggerable; operational transresistance amplifier (OTRA);
Journal_Title :
Circuits and Systems II: Express Briefs, IEEE Transactions on
DOI :
10.1109/TCSII.2006.882361
