Tooprakai, Sirapop

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Tooprakai, Sirapop
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Tooprakai, Siraphop
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sirapop.to@kmitl.ac.th

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    A 1.2 v low-power true single-phase clock CMOS 2/3 prescalers
    (2014-11-05)
    Tooprakai, Siraphop
    ;
    Tudsorn, Apirak
    This paper presents a low-power true single-phase clock 2/3 prescalers at 1.2 V supply voltage. The true single-phase clock divider was developed to help achieve low power and highspeed. All simulation results have been carried out by using Hspice program simulator based on 0.13μm CMOS technology. The power consumption of the proposed circuit is less than that of the previous circuits. The prescaler is capable of operating from 0.5 to 9.7 GHz.
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    1V High speed E-TSPC 2/3 prescalers
    (2019-07-01)
    Lawang, Itthiphat
    ;
    Tudsorn, Apirak
    ;
    Tooprakai, Siraphop
    This paper presents a 1V High Speed E-TSPC 2/3 Prescalers. The true single-phase clock divider was developed to constitute work faster and low power. All simulation results are performed using the Hspice simulator program. And uesd CMOS technology on 45 mm. The power consumption of the proposed circuit will consume less power than other circuits previously. The maximum input frequency for simulations of the suggested prescaler reaches up to 24GHz at 1V supply voltage.
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    Development of wireless device prototype for measurement of rumen pH and temperature continuously in cattle
    (2023-01-01)
    Prasomsri, Piyanat
    ;
    Tudsorn, Apirak
    ;
    Leklerdsiriwong, Aekaluck
    ;
    Inchaisri, Chaidate
    ;
    Tooprakai, Siraphop
    This study aims to develop a prototype rumen pH and rumen temperature measuring device for continuous measurement. The benefit is for the monitoring and early diagnosis of metabolic diseases in cattle, especially rumen acidosis and subacute ruminal acidosis. The developed prototype device was approximately 50 millimeters in diameter, 145 millimeters in length and weighed 400 grams. The outer structure of the prototype was made from abs plastic made by a 3D printer, while the internal device contained pH and temperature sensors, a microcontroller and battery. The prototype was placed in the ventral sac of the rumen of fistulated cattle for three days to test the transfer of pH and temperature data. It was found that the pH drifted over time while the temperature remained stable. The pH and temperature signals showed a fast response after feeding. The rumen pH and rumen temperature measured with the prototype were 5.3 - 7.0 and 37.25 - 38.75, respectively. The pH drift over 48 and 72 hours was around 0.15 and 0.28, respectively.
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    A 1.1-V Low power true single-phase clock 2/3 prescaler
    (2017-10-19)
    Tooprakai, Siraphop
    ;
    Wisetphanichkij, Sompong
    ;
    Tudsorn, Apirak
    This paper is proposed a low-power CMOS 2/3 prescaler using true single-phase technique on 45 nm CMOS technology with 1.1 V. The true-single-phase clock divider is used to achieve low power. The prescaler is capable of operating from 1 to 16 GHz. When operating at 1 GHz, it saves more power consumption compared to that of a conventional circuit and lowpower true single-phase clock CMOS 2/3 prescalers circuit operating in divide-by-2 mode and in divide-by-3 mode, respectively.