Working condition analysis of RC-Wien-bridge sinusoidal oscillation circuit
YANG Yu-qiang
TENG Xiang
Abstract：In the study of RC-Wien-bridge sinusoidal oscillator circuit in the general literature on RC se-lection of series and parallel positive feedback frequency selective network element parameters,are part of series and parallel resistance equal,symmetric capacitor is equal to limiting condition. Through the theoretical analysis that the frequency characteristics of RC series,in parallel with the positive feedback network with R,select C the component parameters and no specific constraints,can have a variety of options,so that the circuit design is flexible. Using Multisim14 software,serial and parallel positive feedback frequency of network element parame-ters under asymmetric conditions on the RC-Wien-bridge sinusoidal oscillator circuit of the virtual simulation experiment in RC,gives the Multisim simulation experiment,simulation of the circuit from the working process of steady amplitude vibration to the output circuit,the voltage amplification index test,virtual simulation experi-ment results and theoretical analysis results are consistent.
Keywords：RC-Wien-bridge sinusoidal oscillation circuitRC series and parallel positive feedback net-workMultisimvirtual simulation
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 76-80,96 )