AC-DC power converter with power factor correction

The present invention relates to an AC-DC power converter which includes a resonant DC-DC converter and a charge pump circuit. The charge pump circuit is configured to perform power factor correction of the AC-DC power converter by drawing current pulses at a switching frequency of the converter fro...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Ammar, Ahmed Morsi, Nour, Yasser A. A, Knott, Arnold
Format: Patent
Sprache:eng
Schlagworte:
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Beschreibung
Zusammenfassung:The present invention relates to an AC-DC power converter which includes a resonant DC-DC converter and a charge pump circuit. The charge pump circuit is configured to perform power factor correction of the AC-DC power converter by drawing current pulses at a switching frequency of the converter from an AC line voltage such that electrical charges of the current pulses vary substantially proportionally with instantaneous amplitude of the AC line voltage.