Title :
Analysis and measurement of DCM power factor correctors
Author :
Fung, Kin-Siu ; Ki, Wing-Hung ; Mok, Philip K T
Author_Institution :
Dept. of Electr. & Electron. Eng., Hong Kong Univ., Hong Kong
Abstract :
Analysis of active power factor correctors operating in discontinuous conduction mode is presented. Input currents are modeled as series of triangular pulses with appropriate duty ratios, from which the power factors are computed for three common corrector topologies-the pulse width modulated (PWM) boost, the PWM flyback and the hysteretic boost correctors. Power spectrums are also examined and the harmonic distortions of the discontinuous input currents are computed. Circuit simulations and experimental results are presented in verifying the theoretical analysis
Keywords :
DC-DC power convertors; PWM power convertors; harmonic distortion; power conversion harmonics; power factor correction; DCM power factor correctors; PWM boost corrector; PWM flyback corrector; active power factor correctors; circuit simulations; common corrector topologies; discontinuous conduction mode; discontinuous input currents; harmonic distortions; hysteretic boost corrector; input currents modeling; power factors; power spectrum; triangular pulses; Harmonic distortion; Hysteresis; Inductors; Power harmonic filters; Power measurement; Pulse width modulation; Reactive power; Space vector pulse width modulation; Switches; Voltage;
Conference_Titel :
Power Electronics Specialists Conference, 1999. PESC 99. 30th Annual IEEE
Conference_Location :
Charleston, SC
Print_ISBN :
0-7803-5421-4
DOI :
10.1109/PESC.1999.785587
