Results 71 to 80 of about 1,826 (183)

Voltage-Mode Multifunction Biquad Filter and Its Application as Fully-Uncoupled Quadrature Oscillator Based on Current-Feedback Operational Amplifiers. [PDF]

Sensors (Basel), 2020
Wang SF, Chen HP, Ku Y, Zhong MX.
europepmc   +1 more source

Electronically Tunable Dual-Input Integrator Employing a Single CDBA and a Multiplier: Voltage Controlled Quadrature Oscillator Design

Active and Passive Electronic Components, 2009
A new dual-input differential input active integrator using a current differencing buffered amplifier (CDBA) is proposed. A multiplier element is appropriately used in the circuit whose control voltage (Vc) tunes the integrator time constant (τ ...
R. Nandi, Mousiki Kar, Sagarika Das
doaj   +1 more source

All-Grounded Passive Component Mixed-Mode Multifunction Biquadratic Filter and Dual-Mode Quadrature Oscillator Employing a Single Active Element

Technologies
This paper introduces a compact analog configuration that concurrently realizes a mixed-mode biquadratic filter and a dual-mode quadrature oscillator (QO) by employing a single differential differencing gain amplifier (DDGA) and all-grounded passive ...
Natchanai Roongmuanpha, Jetwara Tangjit, Mohammad Faseehuddin, Worapong Tangsrirat, Tattaya Pukkalanun   +4 more
doaj   +1 more source

VDGA-Based Resistorless Mixed-Mode Universal Filter and Dual-Mode Quadrature Oscillator

Applied Sciences
This study introduces an electronically tunable resistorless mixed-mode universal filter and dual-mode quadrature oscillator configuration utilizing merely two voltage differencing gain amplifiers and two grounded capacitors.
Orapin Channumsin, Jetwara Tangjit, Tattaya Pukkalanun, Worapong Tangsrirat   +3 more
doaj   +1 more source

Two integrator loop quadrature oscillators: A review

Journal of Advanced Research, 2013
A review of the two integrator loop oscillator circuits providing two quadrature sinusoidal output voltages is given. All the circuits considered employ the minimum number of capacitors namely two except one circuit which uses three capacitors. The circuits considered are classified to four different classes.
openaire   +3 more sources

Versatile Tunable Voltage-Mode Biquadratic Filter and Its Application in Quadrature Oscillator. [PDF]

Sensors (Basel), 2019
Wang SF, Chen HP, Ku Y, Lin YC.
europepmc   +1 more source

Electronically Tunable Differential Integrator: Linear Voltage Controlled Quadrature Oscillator. [PDF]

Int Sch Res Notices, 2015
Nandi R, Pattanayak S, Venkateswaran P, Das S.   +3 more
europepmc   +1 more source

An LC Quadrature VCO With Compensated Coupling Networks for Low Supply Sensitivity and I/Q Phase Enhancement

IET Microwaves, Antennas & Propagation
An LC quadrature voltage‐controlled oscillator (LC‐QVCO) with novel compensated coupling networks to achieve both low supply sensitivity and quadrature phase enhancement is proposed.
Yukun He, Renjie Tang, Ka'nan Wang, Dan Li, Li Geng, Xiaoyan Gui   +5 more
doaj   +1 more source