Achuan Sun, Jiahui Pan, Xueting Liu
In this paper, through theoretical analysis and Multisim 12 simulation experiment, the influence of circuit voltage amplification on the stable voltage output amplitude of the RC bridge sine wave oscillator circuit is analyzed. By observing and analyzing multiple different starting and stable whole processes, it is concluded that the change of voltage amplification directly affects the amplitude of the circuit when the circuit is stable. In the linear working range of the circuit, the stable voltage output amplitude is amplified with the voltage that is increased during the start-up. And the larger the start-up voltage amplification factor, the shorter the start-up time. The research results will facilitate the setting of circuit component parameters and systematically study the composition of the circuit.
RC bridge sine wave oscillating circuit; start-up time; output amplitude; Multisim