On the design of active inductors with current-controlled voltage sources

Fakhfakh, Mourad; Pierzchala, Marian; Rodanski, Benedykt

doi:10.1007/s10470-011-9798-z

Cited by 13 publications

(6 citation statements)

References 26 publications

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“…As we know, the practical inductor is usually a spiral inductor and its miniaturization is very difficult [ 36 , 37 , 38 , 39 , 40 , 41 , 42 ]. Unlike a practical inductor, the miniaturization of the components (resistors, capacitances and operational amplifiers) used in a simulated inductor are easy to implement [ 36 , 38 , 39 , 40 ]. This work actually indirectly verifies the possibility and feasibility of the miniaturization of the C 4 D sensor by using the simulated inductor technique and lays a good foundation for future research work.…”

Section: Resultsmentioning

confidence: 99%

“…As we know, according to the current technique level, it is relatively simple to reduce the dimensions of resistors, capacitances and operational amplifiers, while it is difficult to reduce the size of practical inductors [ 36 , 37 , 38 ]. Meanwhile, it is difficult to implement large-valued inductors [ 38 , 39 , 40 , 41 , 42 ]. The simulated inductor is developed and studied to satisfy the need for small-size inductors in integrated circuits.…”

Section: Introductionmentioning

confidence: 99%

“…A simulated inductor is implemented by using active and/or passive components (such as resistors, capacitances and operational amplifiers) and it can function effectively to replace a practical inductor in a circuit [ 36 , 37 , 38 ]. Compared with the practical inductor, the advantages of the simulated inductor are adjustable inductance value, small size, wider range of inductance values and so on [ 36 , 37 , 38 , 39 , 40 , 41 , 42 , 43 , 44 , 45 ]. Currently, the simulated inductor is mainly studied and applied in integrated circuits.…”

Section: Introductionmentioning

confidence: 99%

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New C4D Sensor with a Simulated Inductor

Lyu

Yang

et al. 2016

Sensors

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A new capacitively coupled contactless conductivity detection (C4D) sensor with an improved simulated inductor is developed in this work. The improved simulated inductor is designed on the basis of the Riordan-type floating simulated inductor. With the improved simulated inductor, the negative influence of the coupling capacitances is overcome and the conductivity measurement is implemented by the series resonance principle. The conductivity measurement experiments are carried out in three pipes with different inner diameters of 3.0 mm, 4.6 mm and 6.4 mm, respectively. The experimental results show that the designs of the new C4D sensor and the improved simulated inductor are successful. The maximum relative error of the conductivity measurement is less than 5%. Compared with the C4D sensors using practical inductors, the measurement accuracy of the new C4D sensor is comparable. The research results also indicate that the adjustability of a simulated inductor can reduce the requirement for the AC source and guarantee the interchangeableness. Meanwhile, it is recommended that making the potential of one terminal of a simulated inductor stable is beneficial to the running stability. Furthermore, this work indirectly verifies the possibility and feasibility of the miniaturization of the C4D sensor by using the simulated inductor technique and lays a good foundation for future research work.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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New C4D Sensor with a Simulated Inductor

Lyu

Yang

et al. 2016

Sensors

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“…The simulated inductor technique was developed and studied to replace a practical inductor effectively in the research field of integrated circuits [3,4,5,6,7,8,9,10,11,12,13,14]. A simulated inductor is an active circuit for generating an equivalent inductive reactance, which is implemented with active and passive components (such as resistors, capacitors and operational a mplifiers) [6].…”

Section: Introductionmentioning

confidence: 99%

On the Design of a New Simulated Inductor Using a Contactless Electrical Tomography System as an Example

Wang

Tang

et al. 2019

Sensors

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This work reports a new simulated inductor which is suitable for a Contactless Electrical Tomography (CET) system and can effectively overcome the unfavorable influence of coupling capacitance on the measurement results. By detailed analysis and comparison, it is found that the grounded simulated inductor has a simple circuit construction but its output current is not equal to its input current, while the floating simulated inductor can be used as an independent inductor module but its circuit structure is relatively complex. A new simulated inductor is designed by compensating the currents from the common node of an introduced independent power source to the main circuit. The new simulated inductor combines the advantages of the grounded simulated inductor and the floating simulated inductor. It has the simple construction similar to that of the grounded simulated inductor and its input current is equal to the output current, which means it can be used as an independent module. The impedance measurement and practical image reconstruction experiments were carried out to verify the effectiveness of the new simulated inductor. The experimental results show that the design of the new simulated inductor is successful, and the performance of the impedance measurement is satisfactory. The signal-to-noise ratio of the CET system is improved. Meanwhile, the research work also indicates that in the case when the independent power source is not available, the new simulated inductor is also an effective alternative method. But the phase difference between input signal and output signal is approximately 90° when the elimination principle is realized.

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“…So far, some alternative methods based on passive LC ladder prototype have been presented. Designing active filters based on passive LC ladder prototype are mostly partitioned to integrator-based analysis [6], using the simultaneous single and double passive elements [7][8][9][10], symbolic analysis and graph-based techniques [11][12][13][14][15][16][17][18]. Among these approaches, the graph-based technique has not received enough attention.…”

Section: Introductionmentioning

confidence: 99%

New systematic two‐graph‐based approach of active filters employing multiple output current controlled conveyors

Fani

Farshidi

2013

IET Circuits, Devices & Systems

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A new method for the synthesis of active RC circuits employing multiple output current controlled conveyors (Mo-CCCIIs) is presented here. A new graph is proposed for Mo-CCCII and the application of this graph in active filter design is studied. The obtained active filter uses Mo-CCCIIs as active devices and only capacitors as passive elements without the need of passive resistors. To generalise the proposed method, an algorithm is presented, which converts the loop-cut-set matrices of the passive LC filter prototypes to the proper matrices for Mo-CCCII-based active filters. The new matrices characterise the connections of the equivalent Mo-CCCII-based active filter. The presented algorithm is programmed in MATLAB, so the matrix manipulation is done very quickly. Also, Hspice simulation result of the synthesised active filter is given to confirm the viability of this approach.

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On the design of active inductors with current-controlled voltage sources

Cited by 13 publications

References 26 publications

New C4D Sensor with a Simulated Inductor

New C4D Sensor with a Simulated Inductor

On the Design of a New Simulated Inductor Using a Contactless Electrical Tomography System as an Example

New systematic two‐graph‐based approach of active filters employing multiple output current controlled conveyors

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