Abstract:
In this paper are presented experimental results obtained by simulation, using PSpice model of the UC3854 circuit and the average model of the boost converter, and by measurements on experimental stand, regarding the manner in which the capacitor from voltage control loop affects the dynamic response of power factor circuit at voltage supply changes. Also, it was studied the manner in which the values of this capacitor affects the power factor and the total harmonic distortion factor. The efficiency of power factor circuit depending on output power and power factor modification depending on asynchronous motor speed were experimental determined.
