Zobrazeno 1 - 10
of 269
pro vyhledávání: '"K. Vrba"'
Publikováno v:
Radioengineering, Vol 21, Iss 2, Pp 718-724 (2012)
The differential current conveyor (DCCII) is a versatile current-mode active element, which has a current differencing capability. In this study, a new CMOS DCCII implementation is introduced. As an application example, a novel voltage-mode (VM) firs
Externí odkaz:
https://doaj.org/article/226edd61830340bd8c201f97e413c60a
Publikováno v:
Radioengineering, Vol 21, Iss 1, Pp 392-402 (2012)
An idea of adjustable gain in order to obtain controllable features is very useful for design of tuneable oscillators. Several active elements with adjustable properties (current and voltage gain) are discussed in this paper. Three modified oscillato
Externí odkaz:
https://doaj.org/article/c42f2237a9a04a36972eb1e99786c942
Publikováno v:
Radioengineering, Vol 21, Iss 1, Pp 264-272 (2012)
This paper is in continuation with the very recent work of Prasad et al. [14], wherein new realizations of grounded and floating positive inductor simulator using current differencing transconductance amplifier (CDTA) are reported. The focus of the p
Externí odkaz:
https://doaj.org/article/f062ab1e863b45138ef74d06c24b775e
Publikováno v:
Radioengineering, Vol 20, Iss 2, Pp 428-432 (2011)
In addition to the recently proposed full-wave rectifier by Prommee et al. using voltage-mode (VM)two-cell winner-takes-all (WTA) circuit, we present current-mode (CM) precision full-wave rectifier using CM two-cell WTA circuit. The popular Lazzaro
Externí odkaz:
https://doaj.org/article/c0309facdd0d48889806428bf21d52e2
Publikováno v:
Radioengineering, Vol 20, Iss 1, Pp 19-24 (2011)
In this paper new versatile precision full-wave rectifiers using current and/or voltage conveyors as active elements and two diodes are presented. The performance of these circuit solutions is analysed and compared to the opamp based precision rectif
Externí odkaz:
https://doaj.org/article/c0b3d0c5b5da4596bc70b1993c89bb65
Publikováno v:
Radioengineering, Vol 20, Iss 1, Pp 317-326 (2011)
A modified conception of adjustable current conveyor transconductance amplifier (CCTA) and its interesting application in simple quadrature oscillator expandable for direct frequency modulation purposes, employing only four grounded passive elements
Externí odkaz:
https://doaj.org/article/fd07b74e94cd4600bb4c5f0132173a2a
Voltage-Mode All-Pass Filters Using Universal Voltage Conveyor and MOSFET-Based Electronic Resistors
Publikováno v:
Radioengineering, Vol 20, Iss 1, Pp 10-18 (2011)
The paper presents two novel realizations of voltage-mode first-order all-pass filters. Both circuits use single universal voltage conveyor (UVC), single capacitor, and two grounded resistors. Using the two NMOS transistors-based realizations of the
Externí odkaz:
https://doaj.org/article/9d187eb0c9c84461967062c55ccc616f
Publikováno v:
Telfor Journal, Vol 1, Iss 2, Pp 49-52 (2009)
In the article, the Generalized Current Follower Transconductance Amplifier (GCFTA) element for generalized frequency filter design and a novel active element, the Programmable Current Amplifier (PCA) for the realization of the current-mode analog bl
Externí odkaz:
https://doaj.org/article/0a1162e99afd42e6bd8461ec00a5241c
Publikováno v:
Radioengineering, Vol 11, Iss 2, Pp 14-17 (2002)
Special cells using a differential voltage current conveyor arepresented. The use of these cells for high-order lowpass filter designis described. The filters can be designed to operate in differentmodes.
Externí odkaz:
https://doaj.org/article/bd355354503e497b915107ae8fbd3452
Publikováno v:
Radioengineering, Vol 9, Iss 1, Pp 41-44 (2000)
Four types of second-generation current conveyors are shown. Therealisation of the above conveyors using differential voltage currentconveyors (VDCC) is presented. Two examples illustrate the building ofadjoint networks containing second-generation c
Externí odkaz:
https://doaj.org/article/34dd035a322a4730a8f228fb9bf5678b