Results 71 to 80 of about 186,677 (204)
ELECTRONICALLY TUNABLE QUADRATURE OSCILLATOR USING TRANSLINEAR CONVEYORS AND GROUNDED CAPACITORS
, 2020 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 ...
Passive Active, Elec, Comp
core
Current-Controlled Current-Mode Quadrature Oscillator Using Translinear Current Conveyors [PDF]
, 2019 In this paper, a current-mode quadrature oscillator using second-generation current conveyors (CCIIs) is presented. The proposed oscillator consists of two CCIIs, two grounded capacitors and two grounded resistors.
Kumngern, Montree, Montree Kumngern
core +1 more source
Ultrahigh‐Order Harmonic Mode‐Locked Optoelectronic Oscillator
Laser &Photonics Reviews, Volume 20, Issue 17, 3 September 2026.This article demonstrates a record‐breaking microwave frequency comb generator using an ultrahigh‐harmonic‐order mode‐locked optoelectronic oscillator. By integrating dual recirculating loops into a low‐coherence system, the researchers achieved a harmonic order of 956 with superior noise suppression.
Zhuoran Wang +3 more
wiley +1 more source
Tsinghua Science and TechnologyThe quadrature modulator is a crucial block in transmitters that upconverts baseband signals to the Radio Frequency (RF) band of interest using local oscillator frequencies.
Yingdan Jiang +4 more
doaj +1 more source
Quadrature Oscillators Using Operational Amplifiers
Active and Passive Electronic Components, 2011 Two new quadrature oscillator circuits using operational amplifiers are presented. Outputs of two sinusoidal signals with 90° phase difference are available in each circuit configuration.
Jiun-Wei Horng
doaj +1 more source
Design of current-mode sinusoidal quadrature oscillator using CCCHs [PDF]
, 2011 This paper presents the design of current-mode quadrature oscillator using second generation current controlled current conveyors (CCCIIs) as active element.
Jaikla, W., Songkla, S. N.
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Hertz-Resolution Analog Quadrature Sine Oscillator. Application to Portable Lock-In Amplifiers [PDF]
, 1970 This paper presents the implementation of an analog quadrature sine oscillator capable of generating variable frequency quadrature signals, ranging from 1-100 kHz with less than 2 Hz resolution and a peak-to-peak voltage of 3 V operating at a 3.3 V ...
García Romero, Daniel +7 more
core +1 more source
Advances in Electrical and Electronic Engineering, 2017 The manuscript presents a circuit that can act as a universal filter as well as a single resistence controlled oscillator by unpretentiously changing the switch positions. The circuit employs only two active devices and all grounded passive elements. The
Manish Gupta, Tajinder Singh Arora
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Current Cross-Coupled Relaxation Oscillator with Quadrature Outputs
, 2007 In modern telecommunications, there is a need for quadrature oscillator exhibiting an accurate and stable phase relation. For example, identical two mutually coupled relaxation oscillator can generate identical quadrature signals, and have extremely ...
Yang, Che-chang
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VDGA-Based Resistorless Mixed-Mode Universal Filter and Dual-Mode Quadrature Oscillator
Applied SciencesThis 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 +3 more
doaj +1 more source