Filters
Possibilities of electronic tuning of the KHN filters with commercially available active blocks
There are discussed different variants of the electronically tunable KHN filters in voltage and current mode. The structures contain commercially available and electronically adjustable active elements (CCII, OTA, DT, multipliers,.....
JA - Elektronika a optoelektronika, elektrotechnika
- 2009 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
A Novel Current-Mode KHN-Equivalent Biquad Using Three CFTAs
In this paper a novel current-mode KHN-equivalent (Kerwin-Huelsman-Newcomb) circuit structure using CFTAs (Current Follower Transconductance Amplifier) is presented. Possible internal structure of the CFTA is illustrated. T...
JA - Elektronika a optoelektronika, elektrotechnika
- 2012 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Current-Mode KHN Equivalent Frequency Filter Using ECCIIs
In this paper we present a current-mode electronically tunable multifunction frequency filter that behavior is equivalent to the well known KHN filter. The proposed structure has one low-impedance input with zero potential and three...
JA - Elektronika a optoelektronika, elektrotechnika
- 2010 •
- D
Rok uplatnění
D - Stať ve sborníku
KHN-equivalent voltage-mode filters using universal voltage conveyors
The analog circuit design is very often focused on the design of frequency filters employing different types of active elements. In this paper we present the universal voltage conveyor that is used for the design of the KHN-equivalent filter...
JA - Elektronika a optoelektronika, elektrotechnika
- 2011 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Variable Q and w0 Multifunction Filter Using Universal Voltage Conveyors
This paper presents the universal voltage conveyor and its usage for the design of KHN-equivalent filter working in the voltage-mode. Compared with the known solution using operational amplifiers the proposed structure embodies new ...
JA - Elektronika a optoelektronika, elektrotechnika
- 2009 •
- D
Rok uplatnění
D - Stať ve sborníku
Current-mode KHN filter employing current differencing transconductance amplifiers
This study proposes a current mode (CM) Kerwin-Huelsman-Newcomb (KHN) filter employing only two current differencing transconductance amplifiers (CDTA) and two grounded capacitors. It is concluded that the circuit described here offers a sim...
JA - Elektronika a optoelektronika, elektrotechnika
- 2006 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
CDTA-C current-mode universal 2nd order filter.
Transformation of the classical KHN (Kerwin-Huelsman-Newcomb) 2nd-order filter into the current mode structure containing the CDTA (Current-Differencing Transconductance Amplifier) active elements is described. The resulting str...
JA - Elektronika a optoelektronika, elektrotechnika
- 2005 •
- D
Rok uplatnění
D - Stať ve sborníku
Realization of Current-Mode KHN-Equivalent Biquad Using Current Follower Transconductance Amplifiers (CFTAs)
-Newcomb (KHN) structure working in the current mode. The frequency filter using the CFTA elements has been designed using the signal-flow graphs. The circuit structure Transconductance Amplifier (BOTA). Possible internal <...
JA - Elektronika a optoelektronika, elektrotechnika
- 2010 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
VDTA-C current-mode universal 2nd-order filter
Transformation of the classical KHN (Kerwin-Huelsman-Newcomb) 2nd-order filter into the current-mode structure containing the VDTA (Voltage-Differencing Transconductance Amplifier) active elements is described. The resulting str...
JA - Elektronika a optoelektronika, elektrotechnika
- 2011 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Universal Current-Mode OTA-C KHN Biquad
A universal current-mode biquad is described which represents an economical variant of well-known KHN (Kerwin, Huelsman, Newcomb) voltage-mode filter. The circuit consists of two multiple-output OTAs and of two grounded capacitors. Utilizing...
JA - Elektronika a optoelektronika, elektrotechnika
- 2007 •
- D
Rok uplatnění
D - Stať ve sborníku
- 1 - 10 out of 140 428