کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
446958 1443187 2012 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Resistor-less current-mode four-phase quadrature oscillator using CCCDTAs and grounded capacitors
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر شبکه های کامپیوتری و ارتباطات
پیش نمایش صفحه اول مقاله
Resistor-less current-mode four-phase quadrature oscillator using CCCDTAs and grounded capacitors
چکیده انگلیسی

A current-mode four-phase quadrature oscillator (FPQO) using 2 current controlled current differencing transconductance amplifiers (CCCDTAs) and 2 grounded capacitors is presented. The proposed oscillator can provide 4 sinusoidal output currents with 90 phase difference. The oscillation condition and oscillation frequency can be controlled independently and electronically by adjusting the bias currents of the CCCDTA. Both the oscillation condition and oscillation frequency tuning laws are non-interactive and dual-current controlled. High output impedances of the configuration enable the circuit to be cascaded without additional current buffers. The use of only grounded capacitors is ideal for integration. The circuit performances are depicted through PSPICE simulations, they show good agreement to theoretical anticipation.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: AEU - International Journal of Electronics and Communications - Volume 66, Issue 3, March 2012, Pages 214–218
نویسندگان
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