Abstract
In order to make cutoff frequency of filter that can be changed automatically with the time-varying signal, this chapter presents a new self-tracking filter structure which is based on frequency to voltage conversion. Input signal is converted into voltage signal through the F/V circuit. The output voltage of F/V is used to control cutoff frequency of the filter which is constituted of analog multiplier MLT04, current feedback amplifier AD844, a few resistors and capacitors. The design principle is introduced in detail, the design formulas are derived, and the circuit of self-tracking one-order low-pass and high-pass filter are given. When the input signal’s frequency is in the range of 10–100 kHz, the simulated and measured results show the effectiveness of this new method. The cutoff frequency of the filter can be adjusted automatically by the voltage which is proportional to frequency of input signal. So it realizes the frequency self-tracking.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Similar content being viewed by others
References
Gao MF, Yang Y, Kong LB (2010) Design of low-pass filter of second-order voltage-controlled voltage source. Electron Technol 47(411):73–75
Zhang WZ, Ma SQ, Ran XP (2011) Design of the broadband programmed second-order lower-pass filter. Appl Electron Tech 7(37):97–100
Jiraseree-amornkun A, Surakampontorn W (2008) Efficient implementation of tunable ladder filters using multi-output current controlled conveyors. Int J Electron Commun 62:11–23
Prommee P, Somdunyakanok M (2011) CMOS-based current-controlled DDCC and its applications to capacitance multiplier and universal filter. Int J Electron Commun 65:1–8
Kumngern M, Knobnob B, Dejhan K (2010) Electronically tunable high-input impedance voltage-mode universal biquadratic filter based on simple CMOS OTAs. Int J Electron Commun 64:934–936
Sa-Ngiamvibool W, Srisuchinwong B (2007) A10.7-MHz fully balanced, high-Q, 107-dB-dynamic-range current-tunable bandpass filter. Int J Electron Commun 61:307–313
Yu WW, Yan DT, Yang Y (2008) Research on an automatic tracking filter based on MAX260 and its application. Mod Electron Tech 5(268):76–77
Chen ZZ (2002) Development of programmable band width and high speed following up band pass filter. Signal Process 5(518):456–458
Chen ZZ (2001) Development of follow-up filter and its application. Chin J Sci Instr 3(22):244–246
Wu XM (1995) Application of analog multiplier MLT04. Appl Electron Tech 10:41–42
Acknowledgments
The author would like to acknowledge the support of the National Natural Science Foundation of China under Grant No. 61162017, No. 20927004 and the Postgraduate Tutor Project of Universities of Gansu Province: No. 1101-03.
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2014 Springer Science+Business Media New York
About this paper
Cite this paper
Ran, X., Ma, S., Liu, J., Zhang, W. (2014). Design of the Self-Tracking Filter Based on Frequency to Voltage Conversion. In: Xing, S., Chen, S., Wei, Z., Xia, J. (eds) Unifying Electrical Engineering and Electronics Engineering. Lecture Notes in Electrical Engineering, vol 238. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-4981-2_190
Download citation
DOI: https://doi.org/10.1007/978-1-4614-4981-2_190
Published:
Publisher Name: Springer, New York, NY
Print ISBN: 978-1-4614-4980-5
Online ISBN: 978-1-4614-4981-2
eBook Packages: EngineeringEngineering (R0)