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- Title
Three-Input Single-Output Voltage-Mode Multifunction Filter with Electronic Controllability Based on Single Commercially Available IC.
- Authors
Klungtong, Supachai; Thanapatay, Dusit; Jaikla, Winai
- Abstract
This paper presents a second-order voltage-mode filter with three inputs and single-output voltage using single commercially available IC, one resistor, and two capacitors. The used commercially available IC, called LT1228, is manufactured by Linear Technology Corporation. The proposed filter is based on parallel RLC circuit. The filter provides five output filter responses, namely, band-pass (BP), band-reject (BR), low-pass (LP), high-pass (HP), and all-pass (AP) functions. The selection of each filter response can be done without the requirement of active and passive component matching condition. Furthermore, the natural frequency and quality factor are electronically controlled. Besides, the nonideal case is also investigated. The output voltage node exhibits low impedance. The experimental results can validate the theoretical analyses.
- Subjects
ELECTRONIC equipment; LINEAR Technology Corp.; ELECTRONIC circuits; SIGNAL processing; ELECTRIC filters
- Publication
Active & Passive Electronic Components, 2017, p1
- ISSN
0882-7516
- Publication type
Article
- DOI
10.1155/2017/5240751