Current-Mode Monostable Multivibrators Using OTRAs

Lo, Yu‐Kang; Chien, Heng-Chieh

doi:10.1109/tcsii.2006.882361

Cited by 45 publications

(26 citation statements)

References 9 publications

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“…1(b). The OTRA may also be implemented by using commercially available BJT based current-feedback operational amplifier (CFOA) IC AD844AN [28][29][30] as in Fig. 1(c).…”

Section: The Proposed Circuitmentioning

confidence: 99%

Voltage mode third order quadrature oscillators using OTRAs

Nagar

Paul

2016

Analog Integr Circ Sig Process

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In this paper, the authors present two topologies of voltage mode third order quadrature oscillator circuit using operational transresistance amplifier (OTRA). The first circuit is based on low-pass filter and integrator combination, whereas the second one is high-pass filter and differentiator combination. Both the circuits utilize two OTRAs and three resistors and capacitors each. The frequency of oscillation and condition of oscillation can be adjusted independent of each other in both the circuits. The non-ideality analysis of the circuits are also included. The PSPICE simulation and experimental results verify the theoretical proposition.

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“…1(b). The OTRA may also be implemented by using commercially available BJT based current-feedback operational amplifier (CFOA) IC AD844AN [28][29][30] as in Fig. 1(c).…”

Section: The Proposed Circuitmentioning

confidence: 99%

Voltage mode third order quadrature oscillators using OTRAs

Nagar

Paul

2016

Analog Integr Circ Sig Process

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“…After substituting (18) into (16) and (17), the pulse widths for the VCM and RCM were derived using (19) and (20), respectively…”

Section: Non-ideality and Design Considerationsmentioning

confidence: 99%

Dual-Mode Controlled Pulse Width Monostable Multivibrator Using DVCCs

Chien

2015

J CIRCUIT SYST COMP

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This paper proposes a dual-mode controlled pulse width monostable multivibrator used for analogue signal processing applications that employs two di®erential voltage current conveyors (DVCCs), four passive components and an analogue switch. Unlike the traditional operational-ampli¯er-based monostable multivibrators, the proposed circuit contributes a dual-mode controlled scheme for adjusting the output pulse width through a voltage source and a grounded resistor. This paper discusses several previous designs and presents the circuit operations, related governing formulas, non-ideal e®ect problems, design considerations, and experimental examples of the proposed circuit. A prototype circuit was implemented, and commercially integrated circuits and discrete passive components were used to execute the experimental tests. The features of the proposed circuit are discussed, and the experimental results indicated that the circuit is feasibly used in dual-mode controlled pulse width for the output pulse and were consistent with those of the theoretical analyses.

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“…Hence, several distinct OTRAs have been proposed in the literature since 1992 [2][3][4][5][6]. There have also have been many different kinds of analog circuits, such as integrators [7], immittance simulators [8], oscillators [9][10][11][12], square/triangular waveform generators [13,14], monostable [15,16] and bistable [17] multivibrators, first-order [12,[18][19][20] and second-order [21] all-pass filters, other second-order single-function and multifunction [22][23][24][25][26] and high-order [27,28] filters, and Schmitt trigger [29]. However, none of the elliptic Cauer filters using OTRAs has been presented.…”

Section: Introductionmentioning

confidence: 99%

Analytical synthesis of odd/even‐nth‐order elliptic Cauer filter structures using OTRAs

Chang

Swamy

2012

Circuit Theory & Apps

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SUMMARY The operational transresistance amplifier (OTRA), the dual of the well‐known operational transconductance amplifier, is an attractive element for use in circuit design. One odd‐nth‐order and two even‐nth‐order OTRA‐R‐C or OTRA‐MOS‐C elliptic Cauer filter structures are presented using new analytical synthesis methods (ASMs). Because it is assumed in the synthesis procedure that the transresistance Rm → ∞, but in view of the fact that Rm is finite in practice, the more the number of OTRAs employed, the worse the precision of the output signals. By studying the sensitivity of the output to component variations, more precise output may be obtained by selecting one or two appropriate capacitance(s)/resistance(s) and adjusting their values suitably. H‐spice simulations are given to validate and demonstrate the theoretical predictions. Copyright © 2012 John Wiley & Sons, Ltd.

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Current-Mode Monostable Multivibrators Using OTRAs

Cited by 45 publications

References 9 publications

Voltage mode third order quadrature oscillators using OTRAs

Voltage mode third order quadrature oscillators using OTRAs

Dual-Mode Controlled Pulse Width Monostable Multivibrator Using DVCCs

Analytical synthesis of odd/even‐nth‐order elliptic Cauer filter structures using OTRAs

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