Designing Class a Colpitts Oscillator and Analyzing the Effect of DC Power Supply on its Frequency Stability

Thit Waso Khine

Title:
Designing Class a Colpitts Oscillator and Analyzing the Effect of DC Power Supply on its Frequency Stability

Authors:
Thit Waso Khine

Cite This Article :

Thit Waso Khine "Designing Class a Colpitts Oscillator and Analyzing the Effect of DC Power Supply on its Frequency Stability" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-3 | Issue-5, August 2019, pp.2353-2355, URL: https://www.ijtsrd.com/papers/ijtsrd28022.pdf

Download

Abstract :
Oscillator circuit is one that converts DC power into AC power at a frequency without any input signal. Oscillators are commonly used in communication systems to generate carrier frequency ranging from audio frequency (20 Hz) to radio frequency (100G Hz). There are two main classes of oscillators, harmonic oscillator with sinusoidal output (e.g. sine wave) and relaxation oscillator with non-sinusoidal output (e.g. square wave, triangle wave, etc.). In this paper, class A Colpitts oscillator with LC feedback circuit is designed as a radio frequency oscillator to generate the output signals at 5M Hz. After designing, this circuit is simulated with Multisim software to analyze the effect of power supply on its frequency stability. Three supply voltages, (14 V, 12 V and 10 V) are set as sample parameters to analyze the variation of frequency and voltage of the output signal. Changing DC power supply one by one as the above selected parameters in Multisim, the change of value of frequencies are noted and output signal results are also shown with the help of virtual oscillator.

Keywords :
Colpitts oscillator; class A amplifier; LC feedback circuit; frequency stability

Publication Details:

Unique Identification Number : IJTSRD28022

Published In : Volume-3 | Issue-5, August 2019

Page Number(s) : 2353-2355

Publisher Name : IJTSRD | www.ijtsrd.com | E-ISSN 2456-6470

Copyright © 2019 by author(s) and International Journal of Trend in Scientific Research and Development Journal. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0) (http://creativecommons.org/licenses/by/4.0)

About IJTSRD
Indexing

International Journal of Trend in Scientific Research and Development - IJTSRD having online ISSN 2456-6470. IJTSRD is a leading Open Access, Peer-Reviewed International Journal which provides rapid publication of your research articles and aims to promote the theory and practice along with knowledge sharing between researchers, developers, engineers, students, and practitioners working in and around the world in many areas like Sciences, Technology, Innovation, Engineering, Agriculture, Management and many more and it is recommended by all Universities, review articles and short communications in all subjects. IJTSRD running an International Journal who are proving quality publication of peer reviewed and refereed international journals from diverse fields that emphasizes new research, development and their applications. IJTSRD provides an online access to exchange your research work, technical notes & surveying results among professionals throughout the world in e-journals. IJTSRD is a fastest growing and dynamic professional organization. The aim of this organization is to provide access not only to world class research resources, but through its professionals aim to bring in a significant transformation in the real of open access journals and online publishing.