Results 11 to 20 of about 147,442 (200)
Load Insensitive, Low Voltage Quadrature Oscillator Using Single Active Element [PDF]
In this paper, a load insensitive quadrature oscillator using single differential voltage dual-X second generation current conveyor operated at low voltage is proposed.
Jitendra Mohan, Bhartendu Chaturvedi
doaj +2 more sources
Current-Mode Third-Order Quadrature Oscillator Using CDTAs [PDF]
This paper describes a current-mode third-order quadrature oscillator based on current differencing transconductance amplifiers (CDTAs). Outputs of two current-mode sinusoids with 90° phase difference are available in the quadrature oscillator circuit ...
Jiun-Wei Horng
doaj +2 more sources
A Tunable Quadrature Oscillator with Only Transconductance Elements and Grounded Capacitors
A novel quadrature oscillator is realised with only transconductance elements (TEs) and grounded capacitors. The realised quadrature oscillator uses only two inverting and two non-inverting transconductance elements, along with two grounded capacitors ...
Iqbal A. Khan +2 more
doaj +2 more sources
Electronically Tunable Quadrature Oscillator Using Translinear Conveyors and Grounded Capacitors [PDF]
A new electronically tunable current-mode sinusoidal oscillator with three quadrature outputs is presented. The proposed circuit employs three translinear conveyors and two grounded capacitors to realize three quadrature outputs with independent ...
Sudhanshu Maheshwari
doaj +2 more sources
Is the quadrature oscillator a multivibrator? [PDF]
The aim of this article is to give insight into the mechanisms behind the behavior of oscillators from a new angle, introducing the idea of "frozen eigenvalues." This approach is based on piecewise-linear modelling and a study of the eigenvalues of the time varying linearized Jacobian of the nonlinear differential equations describing the oscillator. A
Lindberg, Erik, E. Lindberg
openaire +4 more sources
Simple quadrature oscillator for BIST [PDF]
A simple quadrature oscillator for the built-in self-test (BIST) of integrated analogue filters is proposed. A new hardware-efficient approach for amplitude control is described, the main assets being: (i) the technique requires little hardware, which makes it very useful for BIST; (ii) the oscillation amplitude is well defined, and (iii) the ...
Raman, Johan +2 more
openaire +4 more sources
All-Pass Filter Based Linear Voltage Controlled Quadrature Oscillator [PDF]
A linear voltage controlled quadrature oscillator implemented from a first-order electronically tunable all-pass filter (ETAF) is presented. The active element is commercially available current feedback amplifier (AD844) in conjunction with the ...
Koushick Mathur +2 more
doaj +2 more sources
Mixed-Mode Third-Order Quadrature Oscillator Based on Single MCCFTA [PDF]
This paper presents a new mixed-mode third-order quadrature oscillator based on new modified current-controlled current follower transconductance amplifier (MCCFTA).
K. Khaw-Ngam, M. Kumngern, F. Khateb
doaj +2 more sources
Electronically Tunable Third-Order Quadrature Oscillator Using CDTAs [PDF]
A current/voltage-mode third-order quadrature oscillator based on current differencing transconductance amplifiers (CDTAs) is presented in this paper. Outputs of two current-mode and two voltage-mode sinusoids each with 90o phase difference are available
J. Horng, H. Lee, J. Wu
doaj +2 more sources
A self-correcting quadrature voltage controlled oscillator [PDF]
A self-correcting quadrature voltage controlled oscillator (QVCO) with phase correcting loop is proposed. It comprises the QVCO core and phase correcting loop, which corrects the quadrature phase error. Two LC VCOs, buffers, and phase shifters are coupled in circular configuration to achieve IQ symmetry. This paper introduces the idea of realizing QVCO
Tomoyuki Arai, Ali Hajimiri
openaire +5 more sources

