Electronically Tunable Grounded and Floating Capacitance Multipliers Using a Single Active Element
A capacitance multiplier is an active circuit designed specifically to increase the capacitance of a passive capacitor to a significantly higher capacitance level. In this paper, the use of a voltage differencing differential difference amplifier (VDDDA), an electronically controllable active device...
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| Format: | Article |
| Language: | English |
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Wiley
2024-01-01
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| Series: | Journal of Electrical and Computer Engineering |
| Online Access: | http://dx.doi.org/10.1155/2024/6628863 |
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| author | Nuttapon Seechaiya Winai Jaikla Amornchai Chaichana Phamorn Silapan Piya Supavarasuwat Peerawut Suwanjan |
| author_facet | Nuttapon Seechaiya Winai Jaikla Amornchai Chaichana Phamorn Silapan Piya Supavarasuwat Peerawut Suwanjan |
| author_sort | Nuttapon Seechaiya |
| collection | DOAJ |
| description | A capacitance multiplier is an active circuit designed specifically to increase the capacitance of a passive capacitor to a significantly higher capacitance level. In this paper, the use of a voltage differencing differential difference amplifier (VDDDA), an electronically controllable active device for designing grounded and floating capacitance multipliers, is proposed. The capacitance multipliers proposed in this study are extremely simple and consist of a VDDDA, a resistor, and a capacitor. The multiplication factor (Kc) can be electronically controlled by adjusting the external bias current (IB). It offers an easy way of controlling it by utilizing a microcontroller for modern analog signal processing systems. The multiplication factor has the potential to be adjusted to a value that is either less than or greater than one, hence widening the variety of uses. The grounded capacitance multiplier can be easily transformed into a floating one by utilizing Zc-VDDDA. PSpice simulation and experimentation with a VDDDA realized from commercially available integrated circuits were used to test the performance of the proposed capacitance multipliers. The multiplication factor is electronically adjustable, ranging in approximation from 0.56 to 13.94. The operating frequency range is approximately three frequency decades. The realization of the lagging and leading phase shifters using the proposed capacitance multiplier is also examined and proven. The results reveal that the lagging and leading phase shifts are electronically tuned via the multiplication factor of the proposed capacitance multipliers. |
| format | Article |
| id | doaj-art-7839a52f6df848709f533b1041ebbdbf |
| institution | OA Journals |
| issn | 2090-0155 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Electrical and Computer Engineering |
| spelling | doaj-art-7839a52f6df848709f533b1041ebbdbf2025-08-20T02:07:08ZengWileyJournal of Electrical and Computer Engineering2090-01552024-01-01202410.1155/2024/6628863Electronically Tunable Grounded and Floating Capacitance Multipliers Using a Single Active ElementNuttapon Seechaiya0Winai Jaikla1Amornchai Chaichana2Phamorn Silapan3Piya Supavarasuwat4Peerawut Suwanjan5Department of Engineering EducationDepartment of Engineering EducationDepartment of Engineering EducationDepartment of Electrical Engineering, Faculty of Engineering and Industrial TechnologyDepartment of Engineering EducationDepartment of Engineering EducationA capacitance multiplier is an active circuit designed specifically to increase the capacitance of a passive capacitor to a significantly higher capacitance level. In this paper, the use of a voltage differencing differential difference amplifier (VDDDA), an electronically controllable active device for designing grounded and floating capacitance multipliers, is proposed. The capacitance multipliers proposed in this study are extremely simple and consist of a VDDDA, a resistor, and a capacitor. The multiplication factor (Kc) can be electronically controlled by adjusting the external bias current (IB). It offers an easy way of controlling it by utilizing a microcontroller for modern analog signal processing systems. The multiplication factor has the potential to be adjusted to a value that is either less than or greater than one, hence widening the variety of uses. The grounded capacitance multiplier can be easily transformed into a floating one by utilizing Zc-VDDDA. PSpice simulation and experimentation with a VDDDA realized from commercially available integrated circuits were used to test the performance of the proposed capacitance multipliers. The multiplication factor is electronically adjustable, ranging in approximation from 0.56 to 13.94. The operating frequency range is approximately three frequency decades. The realization of the lagging and leading phase shifters using the proposed capacitance multiplier is also examined and proven. The results reveal that the lagging and leading phase shifts are electronically tuned via the multiplication factor of the proposed capacitance multipliers.http://dx.doi.org/10.1155/2024/6628863 |
| spellingShingle | Nuttapon Seechaiya Winai Jaikla Amornchai Chaichana Phamorn Silapan Piya Supavarasuwat Peerawut Suwanjan Electronically Tunable Grounded and Floating Capacitance Multipliers Using a Single Active Element Journal of Electrical and Computer Engineering |
| title | Electronically Tunable Grounded and Floating Capacitance Multipliers Using a Single Active Element |
| title_full | Electronically Tunable Grounded and Floating Capacitance Multipliers Using a Single Active Element |
| title_fullStr | Electronically Tunable Grounded and Floating Capacitance Multipliers Using a Single Active Element |
| title_full_unstemmed | Electronically Tunable Grounded and Floating Capacitance Multipliers Using a Single Active Element |
| title_short | Electronically Tunable Grounded and Floating Capacitance Multipliers Using a Single Active Element |
| title_sort | electronically tunable grounded and floating capacitance multipliers using a single active element |
| url | http://dx.doi.org/10.1155/2024/6628863 |
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