Kumngern, Montree
Loading...
Preferred name
Kumngern, Montree
Alternative Name
KUMNGERN, Montree
Kumngern, M.
Main Affiliation
Email
montree.ku@kmitl.ac.th
33 results
Now showing 1 - 10 of 33
- Some of the metrics are blocked by yourconsent settings
Item type:Publication, Electronically tunable voltage-mode SIMO OTA-C universal biquad filter(2011-12-01); ; Dejhan, KobchaiThis paper presents a new voltage-mode biquad filter with single-input multiple-output (SIMO) based on single-ended operational transconductance amplifiers (OTAs) and grounded capacitors. The proposed filter can provide lowpass, bandpass, highpass, bandstop and allpass voltage characteristics. The natural frequency can also be tuned electronically by adjusting the transconductance values of OTAs. The filter still enjoys no requirement with the component choice conditions and no requirement with the inverting-type input signal to realize specific filtering functions, high input impedance, and low active and passive sensitivities. PSPICE simulation results are provided to demonstrate the theoretical analysis. © 2011 IEEE. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, 0.5-V 281-nW Versatile Mixed-Mode Filter Using Multiple-Input/Output Differential Difference Transconductance Amplifiers(2024-01-01); Kulej, TomaszThis paper presents a new low-voltage versatile mixed-mode filter which uses a multiple-input/output differential difference transconductance amplifier (MIMO-DDTA). The multiple-input of the DDTA is realized using a multiple-input bulk-driven MOS transistor (MI-BD-MOST) technique to maintain a single differential pair, thereby achieving simple structure with minimal power consumption. In a single topology, the proposed filter can provide five standard filtering functions (low-pass, high-pass, band-pass, band-stop, and all-pass) in four modes: voltage (VM), current (CM), transadmittance (TAM), and transimpedance (TIM). This provides the full capability of a mixed-mode filter (i.e., twenty filter functions). Moreover, the VM filter offers high-input and low-output impedances and the CM filter offers high-output impedance; therefore, no buffer circuit is needed. The natural frequency of all filtering functions can be electronically controlled by a setting current. The voltage supply is 0.5 V and for a 4 nA setting current, the power consumption of the filter was 281 nW. The filter is suitable for low-frequency biomedical and sensor applications that require extremely low supply voltages and nano-watt power consumption. For the VM low-pass filter, the dynamic range was 58.23 dB @ 1% total harmonic distortion. The proposed filter was designed and simulated in the Cadence Virtuoso System Design Platform using the 0.18 µm TSMC CMOS technology. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Electronically tunable voltage-mode universal filter with single-input five-output using simple OTAs(2013-08-01); ; Dejhan, KobchaiThis article presents a new electronically tunable voltage-mode universal biquadratic filter with single-input five-output using simple operational transconductance amplifiers (OTAs) and grounded capacitors. The proposed configuration provides low-pass, band-pass, high-pass, band-stop and all-pass voltage responses at a high-impedance input terminal that enables easy cascading in voltage-mode. The natural frequency and the quality factor can be set orthogonally by adjusting the circuit components. The natural frequency can also be controlled electronically by adjusting the bias currents of the OTAs. For realising all the five standard filtering functions, no critical-matching conditions are imposed and all the incremental parameter sensitivities are low. Experimental and simulation results that confirm the theoretical predictions are given. © 2013 Copyright Taylor and Francis Group, LLC. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, 1.2 V Differential Difference Transconductance Amplifier and Its Application in Mixed-Mode Universal Filter(2022-05-01); - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Five-Input One-Output Universal Filter Using Simple CMOS OTAs(2018-07-02) - Some of the metrics are blocked by yourconsent settings
Item type:Publication, High-input impedance four-input one-output voltage-mode universal filter using OTAs(2014-01-01); - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Four-input four-output current-mode multifunction filter using CDTAs(2017-07-02); Torteanchai, UsaThis paper proposed a novel four-input four-output current-mode employing two grounded capacitors and two current differencing transconductance amplifiers (CDTAs) from a universal filter and it has been done. The filter could implement five filtering functions on a single topology. The conditions of passive component-matching and requirements of inverting-type input signal are absent in implementing of these filtering functions. The bias currents could control the natural frequency electronically meanwhile the filter passive and active sensitivities are low. To confirm between both the proposed filter and presented theory, the PSPICE simulation results were taken and carried out. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Three-input single-output current-mode universal filter using a single FDCCII and grounded passive components(2014-01-27) - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Three-input four-output voltage-mode multifunction filter using two DDCCs(2014-10-10); Torteanchai, UsaThis paper presents a new voltage-mode universal filter with three-input and four-output using two differential difference current conveyors, two grounded capacitors and two resistors. The proposed filter is suitable for integrated circuit by using only grounded capacitor. Low-pass, band-pass, high-pass and band-stop voltage responses can be obtained simultaneously into one single topology and without component-matching condition requirements. The natural frequency and the quality factor can be controlled orthogonally by setting the passive components. PSPICE simulation results using 0.5 μm CMOS technology form MIETEC are included to confirm the theoretical analysis. The simulation results can be expressed that the proposed circuit agrees well with theory. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, 0.3-Volt Rail-to-Rail DDTA and Its Application in a Universal Filter and Quadrature Oscillator(2022-04-01);