A Canonical Voltage-Controlled VM-APS with a Grounded Capacitor

Maheshwari, Sudhanshu

doi:10.1007/s00034-008-9015-1

Cited by 53 publications

(43 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…After the current-controlled conveyor (CCCII) was introduced [24], a new period has been opened with respect to electronic tunability in the analog filter design. Here the intrinsic input resistance of the CCCII and other versatile analog building blocks (ABBs) is controlled via an external current or voltage, as shown in [3][4][5][6][7][8][9][10][11]. Similarly, the output resistance control of the CMOS inverting amplifier is demonstrated in [12].…”

Section: Introductionmentioning

confidence: 99%

New resistorless and electronically tunable realization of dual-output VM all-pass filter using VDIBA

Herencsár

Mınaeı

Koton

et al. 2012

Analog Integr Circ Sig Process

113

View full text Add to dashboard Cite

In this paper, a new active element called voltage differencing inverting buffered amplifier (VDIBA) is presented. Using single VDIBA and a capacitor, a new resistorless voltage-mode (VM) first-order all-pass filter (APF) is proposed, which provides both inverting and noninverting outputs at the same configuration simultaneously. The pole frequency of the filter can be electronically controlled by means of bias current of the internal transconductance. No component-matching conditions are required and it has low sensitivity. In addition, the parasitic and loading effects are also investigated. By connecting two newly introduced APFs in open loop a novel secondorder APF is proposed. As another application, the proposed VM APF is connected in cascade to a lossy integrator in a closed loop to design a four-phase quadrature oscillator. The theoretical results are verified by SPICE simulations using TSMC 0.18 lm level-7 CMOS process parameters with ±0.9 V supply voltages. Moreover, the behavior of the proposed VM APF was also experimentally measured using commercially available integrated circuit OPA860 by Texas Instruments.Keywords Analog signal processing Á All-pass filter Á Electronically tunable circuit Á Four-phase quadrature oscillator Á Loading effect Á Resistorless filter Á Voltage-mode Á Voltage differencing inverting buffered amplifier (VDIBA)

show abstract

Section: Introductionmentioning

confidence: 99%

New resistorless and electronically tunable realization of dual-output VM all-pass filter using VDIBA

Herencsár

Mınaeı

Koton

et al. 2012

Analog Integr Circ Sig Process

113

View full text Add to dashboard Cite

show abstract

“…It may again be emphasized that, to the best knowledge of author, window comparator circuit has not been presented yet, employing current conveyor or its variants [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16]. Table 1 lists the proposed circuits' comparisons with few available circuits for this electronic function.…”

Section: Modified Circuitmentioning

confidence: 99%

“…There is an urge to develop effective circuit designs employing current-mode active elements in form of current conveyors for realizing class of linear and nonlinear circuits [5][6][7][8][9][10][11][12]. For instance, a simple comparator has been realized using current conveyors [6].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Current Conveyor Based Window Comparator Circuits

Maheshwari¹

2016

Advances in Electrical Engineering

Self Cite

View full text Add to dashboard Cite

This paper introduces a new window comparator circuit utilizing a new current conveyor and two diodes, operable at ±1.25 V and capable of accurately detecting the voltage windows. Another modified circuit with distinct binary levels suited for automatic control applications is also suggested. Exhaustive simulation results showing detection of windows, as small as 50 mV and as high as 1 V, are included. Comparisons are further drawn with the traditional operational amplifier based circuit and the new circuit is found to benefit from the use of current-mode active element, namely, Extra-X Current Controlled Current Conveyor. The proposed theory is well supported through simulation results.

show abstract

“…The VM filters in [26][27][28] use only grounded passive elements but require two differential voltage current conveyors (DVCC), and the CM circuit in [29] requires two CCIIs and employs a floating capacitor. The CM all-pass filters in [30] employ single DVCC together with three passive elements but they do not provide gain and employ at least one floating passive element.…”

Section: Introductionmentioning

confidence: 99%

Unity/Variable-gain Voltage-mode/Current-mode First-order All-pass Filters Using Single Dual-X Second-generation Current Conveyor

Mınaeı

Yüce

2010

IETE Journal of Research

View full text Add to dashboard Cite

In this paper, two new general topologies for realizing voltage-mode (VM)/current-mode (CM) first-order all-pass filter transfer functions (TFs) are presented. The proposed topologies use single dual-X second-generation current conveyor (DXCCII) and three impedances Z 1 , Z 2 and Z 3 . Based on the selection of Z 1 , Z 2 and Z 3 , new VM and CM all-pass filters with unity or variable gains are obtained. The proposed VM/CM filters have high-input/high-output impedances which provide easy cascading at their input/output terminals, respectively. Non-ideal gain and parasitic impedance effects, associated with actual DXCCII implementation, on the performance of the developed topologies are also included. Finally, simulation program with integrated circuit emphasis (SPICE) simulation results based on level 49, 0.25 µm TSMC complementary metal-oxide-semiconductor (CMOS) technology parameters are given to confirm the theory.

show abstract

A Canonical Voltage-Controlled VM-APS with a Grounded Capacitor

Cited by 53 publications

References 16 publications

New resistorless and electronically tunable realization of dual-output VM all-pass filter using VDIBA

New resistorless and electronically tunable realization of dual-output VM all-pass filter using VDIBA

Current Conveyor Based Window Comparator Circuits

Unity/Variable-gain Voltage-mode/Current-mode First-order All-pass Filters Using Single Dual-X Second-generation Current Conveyor

Contact Info

Product

Resources

About