A Simple Schmitt Trigger Circuit with Grounded Passive Elements and Its Application to Square/Triangular Wave Generator

被引：48
|
作者：
Minaei, Shahram [1 ]
Yuce, Erkan [2 ]
机构：
[1] Dogus Univ, Dept Elect & Commun Engn, TR-34722 Istanbul, Turkey
[2] Pamukkale Univ, Dept Elect & Elect Engn, TR-20070 Kinikli Denizli, Turkey
来源：
CIRCUITS SYSTEMS AND SIGNAL PROCESSING | 2012年 / 31卷 / 03期
关键词：
Schmitt trigger; Square wave generator; Triangular wave generator; DVCC; CFOA; CURRENT CONVEYOR; RELAXATION-OSCILLATOR; FREQUENCY; INTERFACE;
D O I：
10.1007/s00034-011-9373-y
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
This paper introduces a new simple Schmitt trigger circuit using a plus-type differential voltage-current conveyor (DVCC+) and only two grounded resistors. The proposed circuit is very simple and enjoys adjustable lower and higher threshold voltages as well as the output saturation levels. The application of the proposed Schmitt trigger circuit to the square/triangular wave generator is also given. Moreover, a current feedback operational amplifier (CFOA)-based square/triangular wave generator is derived from the proposed DVCC+-based circuit. Simulation and experimental results are presented to exhibit the performance of the proposed circuits.
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页码：877 / 888
页数：12
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