TY  - JOUR
T1  - Designing the Ring-Type Voltage Controlled Oscillator
A1  - Saeid Niyakan‎
JF  - specialty journal of electronic and computer sciences
JO  - SPEC. J. ELECTRON. COMPUT. SCI.
SN  - 2412-7485
Y1  - 2019
VL  - 5
IS  - 2
SP  - 67
EP  - 84
N2  - A voltage controlled oscillator (VOC), in fact, is a generator of adjustable frequency. A ‎VOC is used as a key part in the phase lock ring, which is a system that generates a ‎sustained oscillating signal. Since the digital electronics industry needs a growing ‎increase of performance in speed, it is necessary that the VOCs generate the signals in ‎higher frequencies. But, as the frequency increases, the VOC phase noise decreases. ‎Even though there are two main types of VOCs i.e. ring and capacitive-inductive types, ‎in this research, the ring oscillator is designed and simulated using the Dual-gate ‎transistors. The results showed that, compared to MOSFET transistors, frequencies ‎could be generated using the dual-gate transistors. Then, various signals were ‎generated using the op-amp and frequency divider and also using the ring oscillator. ‎Finally, three outputs were weighted and summed and it was shown that oscillations ‎with three times of frequency could be generated using the weighted sum of the phase ‎shift oscillator output‎‎‎‎.
UR  - https://sciarena.com/article/designing-the-ring-type-voltage-controlled-oscillator
ER  -