Kumngern, Montree
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Preferred name
Kumngern, Montree
Alternative Name
KUMNGERN, Montree
Kumngern, M.
Main Affiliation
Email
montree.ku@kmitl.ac.th
26 results
Now showing 1 - 10 of 26
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Item type:Publication, 0.5-V High Linear Fully Differential Multiple-Input Bulk-Driven OTA With Effective Self-Embedded CMFB(2024-01-01); This paper presents a new fully differential multiple-input operational transconductance amplifier (FD MI-OTA) with an effective self-embedded common-mode feedback circuit (CMFB). The circuit employs several design techniques to extend the linearity to the rail-to-rail level, such as a bulk-driven, multiple-input capacitive voltage divider and source degeneration. The circuit uses self-cascode transistors to increase the gain of the OTA from one side and to create a common-mode feedback circuit, needed to control the common-mode output voltage from the other side. Thus, the CMFB is part of the OTA and as a result, its chip area and power consumption remain unchanged. The performance of the proposed circuit was simulated using TSMC s CMOS 0.18 μ m process in the Cadence Virtuoso System Design Platform to validate the performance of the topology. Intensive simulation results based on Monte Carlo and process, voltage, temperature corners were performed to confirm the OTA's performance and the robustness of the CMFB. The circuit operates with a supply voltage of 0.5 V and consumes 17.5nW of power, making it suitable for applications with extremely low voltage supply and low frequency. As an application, a second-order low-pass filter was designed based on the proposed FD MI-OTA. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, New electronically tunable current-mode universal biquad filter using translinear current conveyors(2010-05-01); - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Current-mode universal filter and quadrature oscillator using current controlled current follower transconductance amplifiers(2019-08-15); Khateb, FabianThis paper presents a new current-mode quadrature oscillator and universal filter that employs two current controlled current follower transconductance amplifiers and two grounded capacitors. The proposed circuit can be realized either as a quadrature oscillator or as a universal filter without changing circuit topology. In case the circuit works as a quadrature oscillator, the condition and the frequency of oscillation can be independently and electronically controlled. Four-phase quadrature current outputs and two-phase quadrature voltage outputs can also be obtained. In case the circuit works as a universal filter, low-pass, high-pass, band-pass, band-stop and all-pass filtering functions can be obtained simultaneously by appropriately selecting the input and output signals. The natural frequency and the quality factor of filter can also be obtained independently and electronically. PSPICE simulation results are used to verify the workability of the new topology. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Electronically tunable voltage-mode universal filter with three-input single-output(2010-08-11); Dejhan, KobchaiA new electronically tunable voltage-mode universal filter with three-input single-output using six simple CMOS operational transconductance amplifiers and two capacitors is proposed. The proposed filter provides lowpass, bandpass, highpass, bandstop and allpass voltage responses. Also, the parameters ω<inf>o</inf> and Q can be set orthogonally by adjusting the circuit components. The performances of the proposed circuit are simulated with PSPICE to confirm the presented theory. ©2010 IEEE. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Quadrature oscillator/universal filter using CCCII with adjustable gain(2018-07-02); Torteanchai, UsaThis paper presents a quadrature oscillator and universal filter using current controlled current conveyor with adjustable gain as active element. The proposed circuit combines a quadrature oscillator and a universal filter without changing the topology. In the case that the circuit works as a quadrature oscillator, two quadrature voltage outputs and four quadrature current outputs can be obtained. The condition of oscillation and frequency of oscillation can be orthogonally controlled. In the case that the circuit works as a universal filter, low-pass, band-pass, high-stop, band-stop, and all-pass filtering functions can be obtained. The natural frequency and quality factor of filters can be electronically controlled. The proposed topology is simulated using PSPICE simulators to confirm the workability of the new circuit. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Electronically tunable current-mode universal filter with three-input single-output(2010-12-01); - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Quadrature oscillator and universal filter based on translinear current conveyors(2018-09-01); - Some of the metrics are blocked by yourconsent settings
Item type:Publication, ECCCII-based current-mode universal filter with orthogonal control of ωo and Q(2014-01-01); ; ; Junnapiya, SomyotThis paper presents a new current-mode current- controlled four-input five-output universal filter employing one current-controlled current conveyor (CCCII), one electronically tunable CCCII and two grounded capacitors. The proposed configuration provides lowpass, bandpass, highpass, bandstop and allpass current responses that taken from the high-output impedance terminals, which enable easy cascadability of the current-mode operation. The filter also offers both orthogonal and electronic controls of the natural frequency and the quality factor through adjusting the bias current of the CCCIIs. For realizing all the filter responses, the proposed filter does not require passive component-matching condition and both active and passive sensitivities are low. In addition, a new current-mode current-controlled single-input five-output universal filter can be achieved by using an additional multiple-output minus-type CCCII. The proposed filter is simulated using PSPICE simulations to confirm the theoretical analysis. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Four-input one-output voltage-mode universal filter using simple OTAs(2019-05-01); - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Programmable Universal Filter and Quadrature Oscillator Using Single Output Operational Transconductance Amplifiers(2021-01-01)