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Author: search.filters.author.Kumwachara, KiattisakSubject: search.filters.subject.Current mode

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    A novel current-mode temperature-insensitive APF using a single CCCII+2 with grounded capacitor
    (2016-01-01)
    Kaewdang, Khanittha
    ;
    Kumwachara, Kiattisak
    ;
    Surakampontorn, Wanlop
    A novel first-order all-pass filter (APF) using a single positive second-generation current conveyor of current gain equal to 2 (named as CCII+2), one grounded capacitor and one resistor is proposed. From the proposed CCII+2 based filter, by replacing the CCII+2 and the resistor with a positive second-generation current-controlled conveyor of current gain equal to 2 (named as CCCII+2), a new filter which requires only a single CCCII+2 and one grounded capacitor is achieved. In order to operate in current-mode with temperature insensitive, a temperature compensation technique for the CCCII is also proposed. The experimental and PSPICE simulation results found in a good agreement with theoretical analysis are included.
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    A compounded second-generation current conveyor using only NMOS transistors
    (2004-09-27)
    Pienchob, Patra
    ;
    Kumwachara, Kiattisak
    ;
    Surakampontorn, Wanlop
    In this paper, A CMOS compounded Second-Generation Current Conveyor using only N-Channel MOSFET is introduced. The input stage of the presented circuit consists of Differential amplifier circuit and Current follower circuit and the output stage is Cascode current mirror. This structure provides the high impedance at port Y, Z <sup>+</sup> and Z <sup>-</sup>, and a low impedance at port X. Futhermore, using Differential amplifier circuit and Current follower circuit as a voltage to current converter the circuit gives low voltage offset. The performance of the proposed circuit is studied through the PSPICE simulations.