Chaiyan Chanapromma

Uttaradit Rajabhat University, Krung Thep, Bangkok, Thailand

Are you Chaiyan Chanapromma?

Claim your profile

Publications (12)0 Total impact

  • C. Chanapromma, N. Pookrongtong, J. Mahattanakul
    [Show abstract] [Hide abstract]
    ABSTRACT: This paper presents compact structure of the ladder-based upon fully-differential Log-companding filter in [14]. The proposed filter structure is based on the exponential-state-space integrators with compatible input and output voltage levels. Based upon the proposed structure, the derivation of the all NPN-only 3rd-order fully-differential Log-companding Chebyshev low-pass filter is demonstrated. Simulation results of the demonstrated filters are given.
    Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON), 2012 9th International Conference on; 01/2012
  • Phamorn Silapan, Chaiyan Chanapromma
    [Show abstract] [Hide abstract]
    ABSTRACT: This article presents a current-mode square rooting circuit employing 2 multiple output current follower transconductance amplifiers (MO-CTFAs). The features of the proposed circuit are that; the magnitude of the output current can be linearly/electronically adjusted with wide input dynamic range; the output current is temperature-insensitive; the circuit description is very simple, consisting of merely two MO-CFTAs. Without any matching conditions and external passive elements, the proposed circuit is very appropriate to further develop into an integrated circuit. The PSpice simulation results are depicted. The given results agree well with the theoretical anticipation.
    01/2011;
  • Chaiyan Chanapromma, Amnaj Prajong, Phamorn Silapan
    [Show abstract] [Hide abstract]
    ABSTRACT: This article presents a realization of a recently basic building block for analog signal processing, namely fully-differential operation transconductance amplifier (FD-OTA) using the commercially available ICs (LT1228). The proposed element has very simple internal instruction. The performances are examined through PSpice simulations. The description include example as even order fully-differential biquadratic filter topology. They show good agreement as theoretically depicted.
    01/2011;
  • C. Chanapromma, K. Daoden
    [Show abstract] [Hide abstract]
    ABSTRACT: A low-power, low-voltage CMOS fully differential operational transconductance amplifier (OTA) operating in weak inversion region is presented in this paper. The proposed element allows the use of very small current for low-power and low-voltage features. The performances are examined through PSPICE simulations, displaying usabilities of the new active element. The power consumption is about 221 nW at ±0.75 V and bias current I<sub>E</sub> is 50 nA. The description includes example as a balance output full-wave rectifier.
    Signal Processing Systems (ICSPS), 2010 2nd International Conference on; 08/2010
  • Source
    Chaiyan Chanapromma, Montree Siripruchyanun
    [Show abstract] [Hide abstract]
    ABSTRACT: A new voltage-mode Schmitt trigger based on CC-CFA (Current Controlled Current Feedback Amplifier) is presented in this article. The circuit description is very simple, its construction consists of one CC-CFA and one grounded resistor. The output hysteresis can be controlled by electronic method. With mentioned features, it is very suitable to realize in a monolithic chip. The PSPICE simulation results are depicted, and agree well with the theoretical anticipation. The maximum power consumption is approximately 4.44mW at ±3V supply voltages. An application in a square-wave generator is depicted to validate the usability of the proposed Schmitt trigger.
    01/2010;
  • [Show abstract] [Hide abstract]
    ABSTRACT: This paper presents novel structure of the ladder-based fully-differential log-companding filter with well-defined operating points. The proposed filter structure is based on the exponential-state-space integrators with compatible input and output voltage levels. Based upon the proposed structure, the derivation of the NPN-only 7rd-order fully-differential log-companding Butterworth low-pass filter is demonstrated. Simulation results of the demonstrated filters are given.
    01/2010;
  • Source
    [Show abstract] [Hide abstract]
    ABSTRACT: A low-power, low-voltage CMOS fully differential operational transconductance amplifier (OTA) operating in weak inversion region is presented in this paper. The proposed element allows the use of very small current for low-power and low-voltage features. The performances are examined through PSPICE simulations, displaying usabilities of the new active element. The power consumption is about 35.5pW at ±0.75V. The description includes examples as a current-mode full-wave rectifier and current splitter.
    01/2010;
  • Source
    C. Chanapromma, W. Jaikla, M. Siripruchyanun
    [Show abstract] [Hide abstract]
    ABSTRACT: This article presents a voltage-mode multi-function filter performing completely standard functions: low-pass, high-pass, band-pass, band-reject and all-pass functions, current controlled differential voltage current conveyors (CCDVCCs). The features of the circuit are that: the quality factor and pole frequency can be tuned independently via the input bias currents: the circuit description is very simple, consisting of merely 2 CCDVCCs, 1 resistor and 2 capacitors. Only one external resistor and without any component matching conditions, the proposed circuit is very appropriate to further develop into an integrated circuit. Additionally, each function response can be selected by suitably selecting input signals with digital method. The PSPICE simulation results are depicted. The given results agree well with the theoretical anticipation.
    Communications and Information Technology, 2009. ISCIT 2009. 9th International Symposium on; 10/2009
  • Source
    C. Chanapromma, N. Maneetien, M. Siripruchyanun
    [Show abstract] [Hide abstract]
    ABSTRACT: This article presents a practical realization of a recently basic building block for analog signal processing, namely current control current feedback amplifier (CC-CFA) using the commercially available ICs. It can be realized by the commercially available ICs, AD844 to perform as a current conveyor and LM13600N to function as a floating resistance simulator. The performances are examined through PSPICE simulations and experiments, displaying usabilities of the new active element. The description includes some examples as an inverting voltage amplifier and oscillator.
    Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology, 2009. ECTI-CON 2009. 6th International Conference on; 06/2009
  • Source
    [Show abstract] [Hide abstract]
    ABSTRACT: This article presents a basic current-mode building block for analog signal processing, namely current conveyor transconductance amplifier (CCTA) using the commercially available ICs. The performances are examined through PSPICE simulations and experiment, displaying usabilities of the new active element. The description includes some examples as a voltage-mode universal biquad filter, a grounded inductance, a current-mode multiplier and oscillator. They occupy only a single CCTA.
    Intelligent Signal Processing and Communications Systems, 2008. ISPACS 2008. International Symposium on; 03/2009
  • Source
    [Show abstract] [Hide abstract]
    ABSTRACT: This article describes an instrumentation amplifier circuit by using current controlled current conveyors transconductance amplifiers (CCCCTAs). The circuit provides high input impedance which is a desirable feature for instrumentation amplifier. The proposed circuit can also be electronically adjustable gain and using only active components. Furthermore, the circuit enables to operate with the low temperature-sensitive. Consequently, the proposed circuit is very suitable for further fabricating into integrated circuit (IC) form to employ in a sensitive environment system. Moreover, the proposed circuit can provide in both output voltage and current signals. Performances of the proposed circuit are confirmed through PSPICE simulation results, they are in accordant to theoretical explanations.
    01/2009;
  • Source
    [Show abstract] [Hide abstract]
    ABSTRACT: This paper introduces a modified version of current feedback amplifier (CFA), called current controlled current feedback amplifier (CC-CFA), to extend usabilities of this active element in terms of electronic control-abilities and simpler circuit description of the element's applications. This modified element was realized by using a BiCMOS standard technology to reduce offset error phenomenon, the design configuration is systematically explained. The performances have been proven through PSPICE which is accordance with theoretical anticipations. In addition, application examples for a current-mode multiplier/divider, oscillator, grounded inductance simulator, filters, and amplifiers are included. The results are confirmed that the electrical characteristics are electronically tunable.

Publication Stats

42 Citations

Top Journals

Institutions

  • 2009–2011
    • Uttaradit Rajabhat University
      Krung Thep, Bangkok, Thailand
    • Suan Sunandha Rajabhat University
      Krung Thep, Bangkok, Thailand
  • 2010
    • Nakhonphanom University
      Krung Thep, Bangkok, Thailand
  • 2009–2010
    • King Mongkut's University of Technology North Bangkok
      • Department of Teacher Training in Electrical Engineering
      Krung Thep, Bangkok, Thailand