Analysis and design consideration of a unity power factor quasi-resonant rectifier

✍ Scribed by M. Tou; R. Chaffaï; K. Al-Haddad; V. Rajagopalan

• Book ID: 103897632
• Publisher: Elsevier Science
• Year: 1995
• Tongue: English
• Weight: 613 KB
• Volume: 38
• Category: Article
• ISSN: 0378-4754
• DOI: 10.1016/0378-4754(94)00049-p

✦ Synopsis

Existing ac-dc low harmonic rectifiers are costly and require complex control schemes to minimize input current distortion. Introduced here is a new class of low cost ac-dc high power factor/low harmonic rectifiers. With active zero current resonant switch (Z.C.S) added to the diode bridge rectifier, the converter is capable of drawing a high quality input current waveform naturally at nearly unity power factor, without switching losses and current line transducers. Thus, a simple single phase or 3 phases ac-dc high power factor rectifier is obtained. Full theoretical analysis is done. Simulation and experimental results are given to demonstrate the validity of the concept.