Improving power factor correction in distributed power supply systems using PWM and ZCS-QR SEPIC topologies
- 1 January 1991
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- p. 780-791
- https://doi.org/10.1109/pesc.1991.162764
Abstract
The single-ended primary inductance converter (SEPIC) presents several advantages over boost and flyback topologies which make this converter convenient for use as a power factor preregulator (PFP). Due to this fact, both the pulsewidth modulation (PWM) and the zero-current switched quasi-resonant (ZCS-QR) SEPIC used as PFPs are studied. Stress in components and operation in continuous and discontinuous conduction mode are considered in the PWM case, while the use of full-wave and half-wave resonant switches is considered in the ZCS-QR case. The study of the PWM SEPIC used as a PFP reveals that both types of PFP control, multiplier approach and voltage-follower approach, can be used in PWM SEPIC, the first one when it operates in continuous conduction mode and the second one when it operates in discontinuous conduction mode. Regarding the ZCS-QR SEPIC used as PFP, both types of resonant switch (half-wave and full-wave) can be used.Keywords
This publication has 7 references indexed in Scilit:
- Current waveform distortion in power factor correction circuits employing discontinuous-mode boost convertersPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2003
- Design and analysis of a hysteretic boost power factor correction circuitPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- Sinusoidal line current rectification at unity power factor with boost quasi-resonant convertersPublished by Institute of Electrical and Electronics Engineers (IEEE) ,1990
- A unified analysis of converters with resonant switchesPublished by Institute of Electrical and Electronics Engineers (IEEE) ,1987
- Resonant switches - Topologies and characteristicsPublished by Institute of Electrical and Electronics Engineers (IEEE) ,1985
- Current Injected Equivalent Circuit Approach to Modeling of Switching DC-DC Converters in Discontinuous Inductor Conduction ModeIEEE Transactions on Industrial Electronics, 1982
- High voltage single-ended DC-DC converterPublished by Institute of Electrical and Electronics Engineers (IEEE) ,1977