3 research outputs found
āļ§āļāļāļĢāļāļĢāļāļāļāđāļēāļāļāļļāļāļāļ§āļēāļĄāļāļĩāđāđāļŦāļĄāļāđāļĢāļāļāļąāļāļāļąāļāļāļąāļāļāļĩāđāļŦāļāļķāđāļāļāļĩāđāļŠāļēāļĄāļēāļĢāļāļāļĢāļąāļāļāđāļēāļāļ§āļēāļĄāļāļĩāđ āđāļāđāļāđāļ§āļĒāļ§āļīāļāļĩāļāļēāļāļāļīāđāļĨāđāļāļāļĢāļāļāļīāļāļŠāđāđāļāļĒāđāļāđāļ§āļāļāļĢ DDCCTA āļ§āļāļāļĢāđāļāļĩāļĒāļ§
āļāļāļāļąāļāļĒāđāļāļāļāļāļ§āļēāļĄāļāļĩāđāļāļģāđāļŠāļāļāļ§āļāļāļĢāļāļĢāļāļāļāđāļēāļāļāļļāļāļāļ§āļēāļĄāļāļĩāđāļāļąāļāļāļąāļāļāļĩāđāļŦāļāļķāđāļāļāļĩāđāļāļģāļāļēāļāđāļāđāļŦāļĄāļāđāļĢāļāļāļąāļāđāļāļĒāđāļāđāļ§āļāļāļĢ DDCCTA āļŦāļāļķāđāļāļ§āļāļāļĢ āđāļĨāļ°āļāļąāļ§āđāļāđāļāļāļĢāļ°āļāļļāļŦāļāļķāđāļāļāļąāļ§ āļŠāļēāļĄāļēāļĢāļāļāļĢāļąāļāļāđāļēāļāļ§āļēāļĄāļāļĩāđāđāļāļīāļāļĄāļļāļĄāđāļāđāļāđāļ§āļĒāļ§āļīāļāļĩāļāļēāļāļāļīāđāļĨāđāļāļāļĢāļāļāļīāļāļŠāđāđāļāļĒāļāļēāļĢāļāļĢāļąāļāļāđāļēāļāļĢāļēāļāļŠāđāļāļāļāļāļąāļāđāļāļāļāđāļāļāļāļ§āļāļāļĢ DDCCTA āļāđāļēāļāļāļĢāļ°āđāļŠāđāļāļāļąāļŠ āļāļēāļĢāļŠāļĢāđāļēāļāļāļĨāļāļēāļĢāļāļāļāļŠāļāļāļāđāļāļāļāđāļēāļāļāļļāļāļāļ§āļēāļĄāļāļĩāđāđāļĄāđāļāđāļāļāļāļēāļĢāļāļ§āļēāļĄāļŠāļĄāļāļāļĐāđāļāļąāļāļāļāļāļāđāļēāļāļļāļāļāļĢāļāđ āļāļļāļāļŠāļĄāļāļąāļāļīāļāļāļāļ§āļāļāļĢāļāļĩāđāļāļģāđāļŠāļāļāļŠāļēāļĄāļēāļĢāļāđāļŠāļāļāđāļāđāđāļāļĒāļāļēāļĢāļāļģāļĨāļāļāļāļēāļĢāļāļģāļāļēāļāļāđāļ§āļĒāđāļāļĢāđāļāļĢāļĄ PSPICE āđāļāļ·āđāļāļĒāļ·āļāļĒāļąāļāļāļĪāļĐāļāļĩāļāļĩāđāļāļģāđāļŠāļāļāļāļģāļŠāļģāļāļąāļ: āļ§āļāļāļĢāļāļĢāļāļāļāđāļēāļāļāļļāļāļāļ§āļēāļĄāļāļĩāđāļāļąāļāļāļąāļāļāļĩāđāļŦāļāļķāđāļ āļ§āļāļāļĢāđāļŦāļĄāļāđāļĢāļāļāļąāļ āļ§āļāļāļĢ DDCCTAAbstractThis paper presents a new voltage-mode, firstorder, all-pass filter using one differential difference current conveyor transconductance amplifier and one capacitor. The pole frequency of the filter can be controlled electronically by adjusting the transconductance value through the biasing current. For realizing a first-order all-pass response, no component-matching condition is required. The characteristics of the proposed filter can be confirmed by using PSPICE simulators.Keywords: First-order, All-pass Filter, Voltage-mode Circuit, Differential Difference Current Conveyor Transconductance Amplifier (DDCCTA
High Input Impedance Voltage-Mode Biquad Filter Using VD-DIBAs
This paper deals with a single-input multiple-output biquadratic filter providing three functions (low-pass, high-pass and band-pass) based on voltage differencing differential input buffered amplifier (VD-DIBA). The quality factor and pole frequency can be electronically tuned via the bias current. The proposed circuit uses two VD-DIBAs and two grounded capacitors without any external resistors, which is suitable to further develop into an integrated circuit. Moreover, the circuit possesses high input impedance, providing easy voltage-mode cascading. It is shown that the filter structure can be easily extended to multi-input filter without any additional components, providing also all-pass and band-reject properties. The PSPICE simulation and experimental results are included, verifying the key characteristics of the proposed filter. The given results agree well with the theoretical presumptions
FULLY INTEGRATED MULTIFUNCTION TRANS-IMPEDANCE MODE BIQUAD FILTER
This paper presents a new trans-impedance-mode biquad filter which simultaneously, realizes the multifunction filtering outputs such as low pass (LP), band pass (BP), high pass (HP) and band reject (BR). The presented filter topology consists of only single active element as voltage differencing transconductance
amplifier (VDTA) along with two grounded capacitors and two
MOS implemented grounded resistors. So, the proposed TIM filter structure is fully integrable and canonical in nature. Apart from these, the proposed filter also enjoys the desirable features such as low active and passive sensitivities, low power consumption and orthogonal tunability of pole frequency and quality factor by electronic means. The presented filter is simulated using PSPICE in 0.18 Âĩm CMOS process