Pukkalanun, Tattaya
Loading...
Preferred name
Pukkalanun, Tattaya
Alternative Name
Pukkalanun, T.
Main Affiliation
Email
tattaya.pu@kmitl.ac.th
13 results
Now showing 1 - 10 of 13
- Some of the metrics are blocked by yourconsent settings
Item type:Publication, Grounded Parallel RL, RC, and LC Immittance Simulators Using VDBAs and Passive Elements(2022-01-01); ; This communication suggests a grounded parallel RL, RC, and LC immittance simulator. In this circuit, two voltage differencing buffered amplifiers (VDBAs) with two passive components are proposed. The VDBA device's transconductance gain can be used to electronically adjust the realized equivalent resistance (Req), inductance (Leq), and capacitance (Ceq), which is conditional on the choice of the passive element. The effect of the VDBA's non-idealities on the realized simulator is studied in this research. The second order voltage mode bandpass filter is realized using the proposed active LC parallel simulator, which is simulated using the PSPICE simulation program to ensure that it operates as desired. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Grounded lossy parallel inductance simulation using voltage differencing buffered amplifier(2017-11-03); ; An actively lossy parallel RL-type inductance simulation employing voltage differencing buffered amplifier (VDBA) as an active component is presented. The proposed grounded inductance simulator is realized with a single VDBA, one grounded capacitor and one floating resistor. The equivalent inductance value of the simulator can be adjusted electronically through the transconductance parameter of the VDBA. The effect of the VDBA non-idealities on the realized simulator is analyzed in detail. As an application, active second-order current-mode highpass/bandpass filter is designed using the proposed variable lossy inductance simulator. The PSPICE simulation results using TSMC 0.25-μm CMOS technology demonstrate a close agreement with the theory, and also verify the usefulness of the proposed simulator and its filter design application. - 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, SFG realization of general nth-order allpass voltage transfer functions using VDBAs(2015-08-17); A synthesis procedure of general n<sup>th</sup>-order allpass voltage transfer functions using solely voltage differencing buffered amplifiers (VDBAs) and capacitors with the signal-flow-graph design method is described. It has been shown that the proposed structure employs n VDBAs and n capacitors for the realization of any n<sup>th</sup>-order voltage transfer function. As an illustrative example, the third-order voltage-mode allpass filter has been designed and simulated using PSPICE. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Three-Input One-Output Voltage-Mode Biquadratic Filter Using Single VDBA(2020-03-01); ; In this article, a voltage-mode universal biquadratic filter with triple inputs and single output (TISO) is presented. The circuit consists of only one voltage differencing buffered amplifier (VDBA) along with two capacitors and one resistor. The proposed circuit can realize all five standard biquadratic filter functions namely, lowpass (LP), highpass (HP), bandpass (BP), bandstop (BS) and allpass (AP) without disturbing the circuit structure. The quality factor (Q) and the natural angular frequency (ωo) of the proposed circuit can be controlled by means of the transconductance gain of the VDBA. The circuit also provides low sensitivity performance. The potentiality of the proposed TISO biquadratic filter has been proved by PSPICE program based on TSMC 0.25-μm CMOS technology. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, SFG synthesis of general nth-order allpole voltage transfer functions using VDBAs and grounded capacitors(2014-01-01); - 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, Linearly tunable CMOS VDBA design(2018-06-08); ; A CMOS voltage differencing buffered amplifier (VDBA), whose transconductance gain can be varied linearly by the external DC bias current, is described in this paper. A current squaring circuit is used for biasing the transconductance amplifier with improved wide-input dynamic range, yielding electronically and linearly tunable transconductance. The application of the proposed VDBA in realizing a phase shifter circuit is also suggested. Simulations on the circuits are performed using PSPICE program to confirm the theory and demonstrate the circuit performances. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Resistorless realization of grounded lossy series inductor with two VDBAs and a grounded capacitor(2017-11-24); ; An active simulation of a grounded lossy series RL-type inductor with voltage differencing buffered amplifier (VDBA) is proposed. The proposed inductor is simulated using only two VDBAs, and one grounded capacitor, without any external passive resistors. Also, the simulator requires no critical element matching conditions and cancellation constraints. The realized equivalent resistance and inductance values can be adjusted electronically by means of the VDBA transconductances. The effect of the non-ideal gains of the VDBA on the simulated element values is also discussed in detail. As an application, an active current-mode RLC bandpass filter is designed and simulated using the proposed inductance simulator. The feasibility of the proposed simulator and its filter application has been demonstrated by PSPICE simulations based on TSMC 0.25-?m CMOS technology. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Practical realization of electronically adjustable universal filter using commercially available IC-based VDBA(2021-01-01); ; This paper describes the practical realization of electronically adjustable voltage-mode universal filter with three inputs and single output (TISO) using the commercially available integrated circuit (IC)-based voltage differencing buffered amplifiers (VDBAs). The realization is resistor-less and contains only two VDBAs and two capacitors. The described filter structure can realize all the five standard biquadratic filter functions from the same configuration without needing any component matching criterions. It also exhibits low-output impedance, which enables for easy cascading in voltage-mode operation. Owing to practical VDBA realization, the filter circuit can be easily made electronically tunable with orthogonal ω<inf>o</inf>-Q tuning. The effects of the VDBA non-idealities on the filter performance have been analyzed in detail. To prove the theoretical finding, the performance of the studied circuit was also experimentally measured using the operational transconductance amplifier CA3080 and the operational amplifier LF356 ICs.