Petchmaneelumka, Wandee

Loading...
Thumbnail Image
Preferred name
Petchmaneelumka, Wandee
Alternative Name
Petchmaneelumka, W.
Main Affiliation
Email
wandee.pe@kmitl.ac.th

Settings

Now showing 1 - 4 of 4
  • Loading...
    Thumbnail Image
    Some of the metrics are blocked by your 
    consent settings
    Item type:Publication,
    Power monitoring circuit using operational amplifiers
    (2010-12-01)
    Rerkratn, Apinai
    ;
    Petchmaneelumka, Wandee
    ;
    Julsereewong, Prasit
    ;
    Riewruja, Vanchai
    In this paper presents a power monitoring circuit for battery energy management system using operational amplifiers. The proposed scheme consists of a current sensing circuit with voltage output and an analog multiplier. The voltage output of current sensing circuit is directly proportional to load current. The multiplying result of the load current in the form of voltage signal and the load voltage becomes the load power in term of output voltage of analog multiplier. The configuration of the proposed power monitoring circuit is simple and economically attractive. Simulation and experimental results confirming the performance of the proposed circuit are agreed with the expected values. ©ICROS.
  • Loading...
    Thumbnail Image
    Some of the metrics are blocked by your 
    consent settings
    Item type:Publication,
    Positive/negative floating resistor using OTAs
    (2008-12-01)
    Petchmaneelumka, Wandee
    ;
    Julsereewong, Prasit
    ;
    Riewruja, Vanchai
    A method for realizing a floating resistor based on operational transconductanee amplifiers (OTAs) is presented in this paper. The proposed design is composed of only OTAs without any external resistor. The magnitude of the obtained resistance is electronically varied by adjusting the external bias currents of OTAs. Both a positive and a negative resistance can be achieved in the same circuit. The proposed scheme provides the simple configuration and low cost. The circuit performances based on the use of the commercially available OTAs are confirmed by the experimental results.
  • Loading...
    Thumbnail Image
    Some of the metrics are blocked by your 
    consent settings
    Item type:Publication,
    Temperature compensation of CMOS translinear current conveyor and OTA
    (2001-12-01)
    Chaikla, Amphawan
    ;
    Julsereewong, Prasit
    ;
    Petchmaneelumka, Wandee
    ;
    Kamsri, Thawatchai
    ;
    Riewruja, Vanchai
    In this article, an integrable temperature compensation scheme for CMOS translinear second generation current conveyor (TCCII) and OTA is presented. The proposed scheme makes use of the new bias circuit, which has a current that is inversely proportional to the absolute temperature. The transconductance of both TCCII and OTA can also be linearly varied with the bias current. Performance of the proposed scheme is confirmed through PSPICE simulation program.
  • Loading...
    Thumbnail Image
    Some of the metrics are blocked by your 
    consent settings
    Item type:Publication,
    Simple interface circuit with lead-wire-resistance compensation for single resistive sensors
    (2012-12-01)
    Petchmaneelumka, Wandee
    ;
    Julsereewong, Prasit
    ;
    Julsereewong, Amphawan
    ;
    Tongpakpanang, Jaturon
    A simple interface circuit for single resistive sensor-based remote measurements is presented. The realization method using commercially available devices provides not only the output signal linearly related to resistive sensor changes but also the compensation of effect due to lead-wire resistances. Performance of the proposed circuit is confirmed through experimental results. © 2012 ICROS.