The invention relates to a power factor correction circuit (PFC) comprising a charging coil (LI) with which a storage capacitor is charged with discharge current by a controlled circuit (MI). Said circuit (MI) is switched on and off by an electronic control and regulation device which detects...
引言：PFC(Power Factor Correction)即功率因数校正，主要用来表示电子产品对电能的利用效率。功率因数越高...
关键词:交错并联占空比前馈耦合电感软开关AbstractPowerfactorcorrection(PFC)isnecessaryforrestrainingharmonicpollutioninthegrid.AndtheinputcurrentrippleofthePFCcircuitcanbemitigatedbytheapplicationofinterleavedtechnology.Inthemeanwhile,interleavedtechnologycanincreasetheequivalentswitchingfrequency.Theequivalentswitchingfrequencyis...
A novel approach to the stability analysis of boost power-factor-correction circuits We investigate the stability of a boost PFC circuit, in the saturated and unsaturated regions of operation, for two separate cases: one for which the switc... SK Mazumder,AH Nayfeh,D Borojevic - IEEE Power ...
Single-stage three-phase boost power factor correction circuit for AC–DC converterAC-DC converterThis paper presents a high-levels multilevel inverter (MLI) with a reduced number of the required switches. Forty-nine levels can be obtained in the output voltage from this circuit by using only ...
A boost-up power factor correcting circuit uses power feed back capable of stably supplying power to a load R2 by correcting a power factor, so that the po... Y*K Sang 被引量: 0发表: 1999年 Power factor correction circuit within broad voltage range A power factor correcting circuit within...
When an input AC voltage of the power factor correction circuit is a relative low voltage, the AC voltage is converted to low level voltage by the buck circuit and then converted to an intermediate voltage with a desired level by the boost circuit. When the input AC voltage is a relative ...
A Power Factor Correction (PFC) circuit using Boost converter for low power applications are developed and analyzed in this work. Simulation is done on the Boost PFC circuit using average current mode control to validate the designed parameters. The experimental circuit is developed so that the res...
A buck-boost switching converter includes a soft-switching circuit coupled across the boost switch, controlled to establish a short-circuit across the boost switch prior to turn-on
This paper proposes a single-phase buck-boost power-factor-correction (PFC) circuit for universal input voltage. This converter is operated in discontinuous conduction mode (DCM) by using simple control scheme to achieve voltage step-up/down with unity power factor and low total harmonic distortion...