Electronically Tunable Dual-Input Integrator Employing a Single CDBA and a Multiplier: Voltage Controlled Quadrature Oscillator Design
A new dual-input differential input active integrator using a current differencing buffered amplifier (CDBA) is proposed. A multiplier element is appropriately used in the circuit whose control voltage (Vc) tunes the integrator time constant (τ) electronically. The design of a voltage controlled q...
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| Format: | Article |
| Language: | English |
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Wiley
2009-01-01
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| Series: | Active and Passive Electronic Components |
| Online Access: | http://dx.doi.org/10.1155/2009/835789 |
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| _version_ | 1832547509570895872 |
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| author | R. Nandi Mousiki Kar Sagarika Das |
| author_facet | R. Nandi Mousiki Kar Sagarika Das |
| author_sort | R. Nandi |
| collection | DOAJ |
| description | A new dual-input differential input active integrator using a current differencing buffered amplifier (CDBA) is proposed. A multiplier element is appropriately used in the circuit whose control voltage (Vc) tunes the integrator time constant (τ) electronically. The design of a voltage controlled quadrature oscillator (VCQO) based on the proposed integrator had been satisfactorily implemented. A new type of measurement for the tuning error of the oscillator based on the Nyquist plot is presented that shows an error of only 2% at fo≈ 1 MHz with Total Harmonic Distortion (THD) less than 3%. |
| format | Article |
| id | doaj-art-5ee7fce789904bb38d08de008e875f92 |
| institution | Kabale University |
| issn | 0882-7516 1563-5031 |
| language | English |
| publishDate | 2009-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Active and Passive Electronic Components |
| spelling | doaj-art-5ee7fce789904bb38d08de008e875f922025-02-03T06:44:27ZengWileyActive and Passive Electronic Components0882-75161563-50312009-01-01200910.1155/2009/835789835789Electronically Tunable Dual-Input Integrator Employing a Single CDBA and a Multiplier: Voltage Controlled Quadrature Oscillator DesignR. Nandi0Mousiki Kar1Sagarika Das2Department of Electronics & Telecommunication Engineering, Jadavpur University, Kolkata-700032, IndiaDepartment of Electronics & Communication Engineering, Heritage Institute of Technology, Kolkata-700107, IndiaDepartment of Electronics & Communication Engineering, B.P. Poddar Institute of Management & Technology, Kolkata-700052, IndiaA new dual-input differential input active integrator using a current differencing buffered amplifier (CDBA) is proposed. A multiplier element is appropriately used in the circuit whose control voltage (Vc) tunes the integrator time constant (τ) electronically. The design of a voltage controlled quadrature oscillator (VCQO) based on the proposed integrator had been satisfactorily implemented. A new type of measurement for the tuning error of the oscillator based on the Nyquist plot is presented that shows an error of only 2% at fo≈ 1 MHz with Total Harmonic Distortion (THD) less than 3%.http://dx.doi.org/10.1155/2009/835789 |
| spellingShingle | R. Nandi Mousiki Kar Sagarika Das Electronically Tunable Dual-Input Integrator Employing a Single CDBA and a Multiplier: Voltage Controlled Quadrature Oscillator Design Active and Passive Electronic Components |
| title | Electronically Tunable Dual-Input Integrator Employing a Single CDBA and a Multiplier: Voltage Controlled Quadrature Oscillator Design |
| title_full | Electronically Tunable Dual-Input Integrator Employing a Single CDBA and a Multiplier: Voltage Controlled Quadrature Oscillator Design |
| title_fullStr | Electronically Tunable Dual-Input Integrator Employing a Single CDBA and a Multiplier: Voltage Controlled Quadrature Oscillator Design |
| title_full_unstemmed | Electronically Tunable Dual-Input Integrator Employing a Single CDBA and a Multiplier: Voltage Controlled Quadrature Oscillator Design |
| title_short | Electronically Tunable Dual-Input Integrator Employing a Single CDBA and a Multiplier: Voltage Controlled Quadrature Oscillator Design |
| title_sort | electronically tunable dual input integrator employing a single cdba and a multiplier voltage controlled quadrature oscillator design |
| url | http://dx.doi.org/10.1155/2009/835789 |
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