Electronically tunable OTA-C mutually coupled circuit

Higashimura, Masami; Fukui, Yasuhito

doi:10.1049/el:19910784

Cited by 16 publications

(8 citation statements)

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“…Also, there exists a possibility of tunability of inductance values along with the coupling coefficient. Considering this, some MCC simulators have recently been reported in literature that uses different active building blocks [1][2][3][4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

“…The study of MCC simulators [1][2][3][4][5][6][7][8] shows that the circuits reported in [1,2,7] are based on operational transconductance amplifier (OTA), [2][3][4] that uses second-generation current conveyors (CCII), [5,6] employ second-generation current-controlled conveyors (CCCII), [7] uses differential voltage current conveyors (DVCC) and CCIIs, [8] and utilizes current-controlled current backward transconductance amplifier (CC-CBTA). Some of these implementations [1][2][3][4][5][6][7] realize grounded MCC whereas a floating MCC realization is reported in [8].…”

Section: Introductionmentioning

confidence: 99%

“…Some of these implementations [1][2][3][4][5][6][7] realize grounded MCC whereas a floating MCC realization is reported in [8]. The OTA-based MCC [1,2] employs eight OTAs and two grounded capacitors. The CCII-based structures [2][3][4] use four to eight active elements, four to six resistors, and two to four capacitors.…”

Section: Introductionmentioning

confidence: 99%

“…The recently reported MCC [8] uses three CCCBTAs and three capacitors. The circuits reported in [1,[5][6][7][8] are electronically tunable MCC parameters.…”

Section: Introductionmentioning

confidence: 99%

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DVCCCTA-Based Implementation of Mutually Coupled Circuit

et al. 2012

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This paper presents implementation of mutually coupled circuit using differential voltage current-controlled conveyor transconductance amplifier (DVCCCTA). It employs only two DVCCCTAs, one grounded resistor, and two grounded capacitors. The primary, secondary, and mutual inductances of the circuit can be independently controlled and tuned electronically. The effect of non-ideal behaviour of DVCCCTA on the proposed circuit is analyzed. The functionality of the proposed circuit is verified through SPICE simulation using 0.25 μm TSMC CMOS technology parameters.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…The recently reported MCC [8] uses three CCCBTAs and three capacitors. The circuits reported in [1,[5][6][7][8] are electronically tunable MCC parameters.…”

Section: Introductionmentioning

confidence: 99%

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DVCCCTA-Based Implementation of Mutually Coupled Circuit

et al. 2012

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“…Several studies are proposed in the literature for simulating a mutually coupled circuit using operational amplifiers [2,7,23], bipolar junction transistors [8,21], second-generation current conveyors (CCII) [1,9,28], and the operational transconductance amplifier (OTA) [8,10]. However, current conveyor and current-conveyorbased active component realizations are more attractive due to the already mentioned properties, namely, higher signal bandwidth, greater linearity, wider dynamic range, simple circuitry, and low power consumption [24].…”

Section: Introductionmentioning

confidence: 99%

Realization of New Mutually Coupled Circuit Using CC-CBTAs

Köksal

Ayten

Sağbaş

2011

Circuits Syst Signal Process

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A novel circuit for the realization of the mutually coupled circuit using three current-controlled current backward transconductance amplifiers (CC-CBTAs) as active components is proposed. The active mutually coupled circuit structures are also called the synthetic transformers. The circuit is derived by using three floating simulated inductors that are connected as the T-type transformer model. The circuit has the following attractive advantages: (i) The values of a primary self-inductance, a secondary self-inductance and a mutual inductance can be independently tuned by the transconductance gain of the CC-CBTAs; (ii) The circuit uses three grounded capacitors that are suitable from the point of integrated circuit implementation; (iii) It uses only three active components; (iv) It has a good sensitivity performance with respect to the tracking errors; (v) Both positive and negative couplings are achieved and the coupling coefficient is not limited by 1 in magnitude; (vi) Symmetrical coupling is achieved without necessitating any matching condition; (vii) The proposed circuit has a floating structure.

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A new electronically tunable mutually coupled circuit using current conveyor transconductance amplifiers (CCTAs)

Özer

2022

Circuit Theory & Apps

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This paper presents a novel mutually coupled circuit (MCC) based on the current conveyor transconductance amplifier (CCTA). The proposed MCC includes two CCTAs, three resistors, and two grounded capacitors. The mutual and the self‐inductances can be controlled independently and electronically. There is a single matching condition for satisfying symmetrical coupling. The simulation results have been obtained with the LTspice program using 0.13 μm IBM CMOS technology parameters. As an application example, a double‐tuned band‐pass (DTBP) filter is provided to demonstrate the workability of the proposed MCC. An experimental study is conducted to confirm the time‐domain and frequency domain performance of the DTBP filter by utilizing commercially available integrated circuits (ICs).

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Electronically tunable OTA-C mutually coupled circuit

Cited by 16 publications

References 0 publications

DVCCCTA-Based Implementation of Mutually Coupled Circuit

DVCCCTA-Based Implementation of Mutually Coupled Circuit

Realization of New Mutually Coupled Circuit Using CC-CBTAs

A new electronically tunable mutually coupled circuit using current conveyor transconductance amplifiers (CCTAs)

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