High Input Impedance Voltage-Mode Universal Biquadratic Filter with One Input and Five Outputs Using Current Conveyors

Horng, Jiun‐Wei; Kaewpoonsuk, Chun-Li; Chang, Chun-Ming; Chou, Hung-Pin; Lin, Chin‐Tsai

doi:10.1007/s00034-005-1227-z

Cited by 45 publications

(23 citation statements)

References 32 publications

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“…The design of biquadratic voltage-mode active filters with high-input impedance has received much interest since they can be directly cascaded to implement higher order filters without the use of additional buffer circuits [1]. Many voltage-mode universal biquadratic filters using current conveyors with multi-input/multi-output were proposed in the literature [2][3][4][5][6][7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Cascadable DDCC-Based Universal Filter Using NAM

et al. 2015

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A novel systematic approach for synthesizing DDCC-based voltage-mode biquadratic universal filters is proposed. The DDCCs are described by infinity-variables' models of nullor-mirror elements which can be used in the nodal admittance matrix expansion process. Applying the proposed method, the obtained 12 equivalent filters offer the following features: multi-input and two outputs, realization of all five standard filter functions, namely lowpass, bandpass, highpass, notch and allpass, high-input impedance, employing only grounded capacitors and resistors, orthogonal controllability between pole frequency and quality factor, and cascadable, low active and passive sensitivities. The workability of some synthesized filters is verified by HSPICE simulations to demonstrate the feasibility of the proposed method.

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Section: Introductionmentioning

confidence: 99%

Synthesis of Cascadable DDCC-Based Universal Filter Using NAM

et al. 2015

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“…The first method is based on the design of more complex filtering structures with simple active elements, for example in [2,15,16,21]. The second approach is contrary which means that the final filtering structures are simpler, but the active elements are more complex, typically in [11,20,22].…”

Section: Introductionmentioning

confidence: 99%

“…Table 1 could be summarized into the several conclusions. Some recently proposed conceptions contain too many passive elements [2,15,16,21,22,26], or maybe unreasonably many active elements [20,26] but in several cases, it is necessary for the independent ω C and Q control. However there are simpler solutions, for example [19,27] with ω C and Q control included.…”

Section: Introductionmentioning

confidence: 99%

Tunable Universal Filter with Current Follower and Transconductance Amplifiers and Study of Parasitic Influences

Jeřábek¹,

Šotner²,

Vrba³

2011

Journal of Electrical Engineering

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A universal filter with dual-output current follower (DO-CF), two transconductance amplifiers (OTAs) and two passive elements is presented in this paper. The filter is tunable, of the single-input multiple-output (SIMO) type, and operates in the current mode. Our solution utilizes a low-impedance input node and high-impedance outputs. All types of the active elements used can be realized using our UCC-N1B 0520 integrated circuit and therefore the paper contains not only simulation results that were obtained with the help of behavioral model of the UCC-N1B 0520 element, but also the characteristics that were gained by measurement with the mentioned circuit. The presented simulation and measurement results prove the quality of designed filter. Similar multi-loop structures are very-well known, but there are some drawbacks that are not discussed in similar papers. This paper also contains detailed study of parasitic influences on the filter performance.

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“…Recently new type of universal voltage mode filter using the differential voltage current conveyor (DVCC) has been introduced in [13,14]. The circuit reported in [13] employs two floating resistors and has no independent control on Q.…”

Section: Introductionmentioning

confidence: 99%

“…The circuit reported in [13] employs two floating resistors and has no independent control on Q. The circuit reported in [14] is based on three input excitations and has no independent control on Q also.…”

Section: Introductionmentioning

confidence: 99%

Generation and classification of Kerwin–Huelsman–Newcomb circuits using the DVCC

Soliman¹

2008

Circuit Theory & Apps

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SUMMARYNew circuits realizing the Kerwin-Huelsman-Newcomb (KHN) and using three or four differential voltage current conveyor (DVCC) are generated from the basic KHN and inverted KHN block diagrams. The circuits are classified into two types, type A employs three DVCC and type B employs four DVCC. Each type includes four classes of circuits depending on the four possible integrator polarities. Each class can be realized by several circuits as will be demonstrated in the paper. All the eight possible sign combinations of the output voltages polarities are obtainable from the two types; four sign combinations from each type. The eight block diagrams are included to demonstrate the difference between each class of circuits. Spice simulation results demonstrating the practicality of the proposed filters are included.

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High Input Impedance Voltage-Mode Universal Biquadratic Filter with One Input and Five Outputs Using Current Conveyors

Cited by 45 publications

References 32 publications

Synthesis of Cascadable DDCC-Based Universal Filter Using NAM

Synthesis of Cascadable DDCC-Based Universal Filter Using NAM

Tunable Universal Filter with Current Follower and Transconductance Amplifiers and Study of Parasitic Influences

Generation and classification of Kerwin–Huelsman–Newcomb circuits using the DVCC

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