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Electronically Tunable Fully-Differential Fractional-Order Low-Pass Filter
- Source :
- Elektronika Ir Elektrotechnika. 2017, vol. 23, issue 3, p. 47-54.
- Publication Year :
- 2017
- Publisher :
- Kaunas University of Technology (KTU), 2017.
-
Abstract
- The paper presents proposal of a fully-differential (1 + α)-order low-pass filter. The order of the filter and its cut-off frequency can be controlled electronically. The filter is proposed using operational transconductance amplifiers (OTAs), adjustable current amplifiers (ACAs) and fully-differential current follower (FD-CF). The circuit structure is based on well-known Inverse Follow-the-Leader Feedback (IFLF) topology. Design correctness of the proposed filter is supported by PSpice simulations with transistor-level simulation models. The ability of the electronic control of the order has been tested for five individual values of parameter α. Furthermore, the ability of the electronic control of the cut-off frequency of the filter has been also tested for five different values. Additionally, the simulation results of the proposed fully-differential (F-D) filter are compared with the results of the single-ended (S-E) equivalent of the presented filter.DOI: http://dx.doi.org/10.5755/j01.eie.23.3.18332
- Subjects :
- Active filter
low-pass filter
Engineering
Voltage-controlled filter
business.industry
Low-pass filter
05 social sciences
Electronic filter topology
Butterworth filter
020206 networking & telecommunications
02 engineering and technology
fractional-order
Filter design
frequency control
Control theory
0502 economics and business
0202 electrical engineering, electronic engineering, information engineering
Electrical and Electronic Engineering
business
High-pass filter
050203 business & management
All-pass filter
Subjects
Details
- ISSN :
- 20295731 and 13921215
- Volume :
- 23
- Database :
- OpenAIRE
- Journal :
- Elektronika ir Elektrotechnika
- Accession number :
- edsair.doi.dedup.....6a53dbbb815eb8f4807706082339c429