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Proceedings ArticleDOI

An Independently/Electronically Controllable Schmitt Trigger Using only Single VDGA

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TLDR
This paper presents electronically tunable Schmitt trigger circuit based on voltage differencing gain amplifier (VDGA) that can be independently controlled by corresponding bias currents of the VDGA.
Abstract
This paper presents electronically tunable Schmitt trigger circuit based on voltage differencing gain amplifier (VDGA). The circuit comprises only 1 VDGA without any passive element. The threshold and output voltage levels of the proposed Schmitt trigger can be independently controlled by corresponding bias currents of the VDGA. The performance verification of proposed Schmitt trigger is depicted by PSpice simulation program with the model parameter 0.35μm CMOS process. The obtained results confirm the theoretical expectation. The total power consumption approximately 0.25mW, at ±1.5V. This proposed Schmitt trigger can further be used in control systems and signal generators.

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Citations
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Journal ArticleDOI

A fully/electronically controllable voltage-mode Schmitt trigger based on only single VDGA and its applications

TL;DR: In this article, a voltage-mode Schmitt trigger based on a modified voltage differencing gain amplifier (VDGA) was proposed, which can offer both counterclockwise (CCW) and clockwise (CW) functions, without changing circuit topology.
Journal ArticleDOI

A bulk-driven differential CMOS schmitt trigger with adjustable hysteresis for ultra-low-voltage operation

TL;DR: Although the designed circuit is designed in the subthreshold region, it has a higher speed, and the variations of the hysteresis width are considerably wider compared to the similar works, which makes it suitable for ultra-low-power applications such as biomedical devices.
Journal Article

Pulse Width Modulation Circuits Using CMOS OTAs

TL;DR: In this paper, the authors presented three pulsewidth modulation modulators using CMOS operational transconductance amplifiers, which consist of a ramp integrator and current-tunable Schmitt triggers.
Proceedings ArticleDOI

A High-gain Low-voltage BiCMOS Voltage Differencing Gain Amplifier and Application

TL;DR: In this article , the authors proposed a new structure of versatile active building block, namely BiCMOS voltage differencing gain amplifier (VDGA), which was designed using a bipolar and 0.35µm CMOS transistors technology, offering advantages from both technologies.
Proceedings ArticleDOI

A Resistorless Temperature-insensitive Electronically-adjustable Single VDGA-based Voltage-mode Instrumentation Amplifier

TL;DR: In this article , a voltage differencing gain amplifier (VDGA) is proposed to achieve high differential mode gain and common-mode rejection ratio (CMRR) with temperature insensitivity.
References
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Journal ArticleDOI

Low-voltage high-speed Schmitt trigger and compact window comparator

TL;DR: This paper describes a very simple CMOS Schmitt trigger circuit, well suited for low-voltage and high-speed applications, and allows the construction of a very compact window comparator.
Journal ArticleDOI

Pulsewidth Modulation Circuits Using CMOS OTAs

TL;DR: This paper presents three pulsewidth modulation modulators using CMOS operational transconductance amplifiers that consist of a ramp integrator and current-tunable Schmitt triggers that can be easily fabricated in a monolithic integrated circuit.
Journal ArticleDOI

Current-Mode Monostable Multivibrators Using OTRAs

TL;DR: Three nonretriggerable current-mode monostable multivibrators constructed of one operational transresistance amplifier (OTRA) and a few passive elements are presented in this brief.
Proceedings ArticleDOI

A simple current-mode Schmitt trigger employing only single MO-CTTA

TL;DR: In this paper, a new current-mode Schmitt trigger based on MOCTTA (multiple output current through transconductance amplifier) is presented, which is very suitable to realize in a monolithic chip.
Journal ArticleDOI

Fully electronically controllable Schmitt trigger circuit with dual hysteresis

TL;DR: In this paper, a Schmitt trigger circuit consisting of single multiple output current follower differential input transconductance amplifier and one grounded resistor is presented, which provides both clockwise and anticlockwise hysteresis simultaneously with independent and electronic control of threshold levels.
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