Moonmuang, Pitchayanin
Loading...
Preferred name
Moonmuang, Pitchayanin
Alternative Name
Moonmuang, P.
Main Affiliation
Email
pitchayanin.mo@kmitl.ac.th
7 results
Now showing 1 - 7 of 7
- Some of the metrics are blocked by yourconsent settings
Item type:Publication, Simple current-controlled VDTA-R schmitt trigger circuit(2019-07-01); ;Unhavanich, SumaleeA simple current-controlled Schmitt trigger circuit employing single voltage differencing transconductance amplifier (VDTA) and only two grounded resistors is presented. The proposed Schmitt trigger circuit offers independent electronic adjustability of its threshold voltage levels and output voltage amplitudes by the help of corresponding VDTA bias currents. In addition, both clockwise and counter-clockwise hystereses are also achievable. To justify the theoretical predictions, the verification of the proposed Schmitt trigger circuit is performed by PSPICE simulation software using TSMC 0.25μm CMOS technology. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Voltage differencing buffered amplifier-based electronically tunable grounded capacitance multiplier(2019-03-16); ; A minimal realization of electronically adjustable capacitance multiplication topology with voltage differencing buffered amplifier (VDBA) is proposed. The proposed capacitance multiplier circuit is designed by means of two VDBAs and one floating capacitor. A capacitance multiplication factor is adjusted electronically through the ratio of two transconductances. The effect of the non-ideal gains of the VDBA is also taken into account and carried out. As an analog application example, the proposed capacitance multiplier circuit is utilized in the design of an electronically tunable first-order low-pass filter. PSPICE simulations with TSMC 0.25-µm CMOS technology are included to support the theoretical analysis. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Electronically tunable resistorless capacitance multiplier employing VDBAs(2017-11-24); This work focuses on a circuit configuration for the simulation of the resistorless tunable grounded capacitance multiplier using the recently introduced active building block called voltage differencing buffered amplifier (VDBA). The proposed capacitance multiplier circuit consists of only two VDBAs, and one floating capacitor, without requiring critical matching conditions. The realized equivalent capacitance value can be tuned electronically through the ratio of the transconductance gain of the VDBA. The effect of the VDBA non-idealities on the realized equivalent capacitance has also been investigated in detail. As an application, an illustrative RLC low-pass filter using the proposed tunable capacitance simulator has been provided. In order to demonstrate the behavior of the circuit and confirm the theory, PSPICE simulation results with TSMC 0.25-µm CMOS technology are included. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Actively simulated floating lossless inductor for short range wireless communication(2019-01-01); ; ;Unhavanich, SumaleeThis communication describes the resistorless simulation of the floating lossless inductor using three voltage differencing buffered amplifiers (VDBAs) and one grounded capacitor. The circuit employs only a grounded capacitor, and no other extra resistor element is employed. Thus, it is suitable for further communication integrated front-end circuit design in short-range wireless and application. The realized equivalent inductance value of the simulated inductor can be changed electronically via the external biasing currents of the VDBAs. Sufficient simulation results with the PSPICE program are provided to validate the functionality of the realized inductor. In addition to establishing the practical operation of the simulator, the measured test results obtained from hardware implementation using readily available integrated chips (ICs) are also included. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, VDBA-based electronically tunable capacitance multiplier with a grounded capacitor(2018-07-02); ; This work presents an electronically tunable grounded capacitance multiplier circuit based on the voltage differencing buffered amplifier (VDBA), a recently introduced active building block. The proposed capacitor circuit requires only two VDBAs, one floating resistor, and one grounded capacitor. The circuit can be tuned electronically via the VDBA transconductance ratio. The effect of the VDBA non-idealities on the simulated capacitance value has also been discussed in detail. The usability of the proposed tunable capacitance simulator has been verified by realizing the fourth-order low-pass filter application with a Butterworth approximation. In order to verify the theory, the behavior of the circuits is evaluated with PSPICE simulation program using TSMC 0.25-µm CMOS process parameters. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, VDBA-Based series RC impedance simulator using single grounded capacitor(2018-08-13); ; This work presents an electronically tunable series RC impedance simulator circuit by means of the recently introduced active element, called voltage differencing buffered amplifier (VDBA). The proposed circuit employs only two VDBAs and one grounded capacitor, which is canonic in the number of components. The simulated equivalent element values can be tuned electronically through the VDBA transconductance gain. The circuit also does not require any component-matching conditions. The non-ideal gain effects of the VDBA on the simulated capacitance value are also evaluated and discussed. PSPICE simulations, which are in a close agreement with the analytical calculations, are included. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Two-input two-output current-mode universal biquad using only VDTAs and grounded capacitors(2018-06-08); ;Mongkolwai, PratyaA two-input two-output current-mode universal biquad employing only two voltage differencing transconductance amplifiers (VDTAs) and two grounded capacitors is introduced. By appropriately connecting the input and output terminals, the proposed circuit can realize lowpass, bandpass, highpass, bandstop and allpass current responses. It also exhibits an independent electronic control of the natural angular frequency (ω<inf>o</inf>) and the quality factor (Q) by properly setting the transconductance values of the VDTAs. No critical component matching choices are imposed for generating all the filter functions, and all incremental parameter sensitivities are low.
