a voltage gain-controlled modified cfoa and its application in electronically tunable four-mode all-pass filter design
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ID: 192329
2012
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Abstract
This paper presents a new active building block (ABB) called voltage gain-controlled modified current feedback amplifier (VGC-MCFOA) based on bipolar junction transistor technology. The versatility of the new ABB is demonstrated in new first-order all-pass filter structure design employing single VGC-MCFOA, single grounded capacitor, and three resistors. Introduced circuit provides all four possible transfer functions at the same configuration, namely current-mode, transimpedance-mode, transadmittance-mode, and voltage-mode. The pole frequency of the circuit can be easily tuned by means of DC bias currents. The theoretical results are verified by SPICE simulations based on bipolar transistor arrays AT&T ALA400-CBIC-R process parameters.
| Reference Key |
herencsar2012internationala
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|---|---|
| Authors | ;Norbert Herencsar;Jaroslav Koton;Abhirup Lahiri;Bilgin Metin;Kamil Vrba |
| Journal | química nova |
| Year | 2012 |
| DOI |
10.11601/ijates.v1i1.27
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| URL | |
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