Universal mains high power-density ac-dc converter

Yasser A. A Nour (Inventor), Ahmed Morsi Ammar (Inventor), Arnold Knott (Inventor), Christian Kaalø Lumby (Inventor)

Research output: Patent

38 Downloads (Pure)


The invention regards an AC-DC converter comprising a rectifier comprising a first input configured to receive an AC signal, and a first output, wherein the rectifier is configured to rectify the AC signal to a first rectified AC signal having a first VRMS, a voltage scaling circuit comprising a second input connected to the first output, wherein the second input is configured to receive the first rectified AC signal, and a second output, wherein the voltage scaling circuit is configured, if the first VRMS is within a first voltage range, to scale the first rectified AC signal by a first scaling factor generating a second rectified AC signal, a power factor correction (PFC) circuit for keeping the current in phase with and proportional to the voltage of the second rectified AC signal. the PFC circuit comprising a third input connected to the second output, and a third output configured to supply a DC signal on an AC-DC converter-output.

Original languageEnglish
IPCH02M 7/ 06 A I
Patent numberWO2021198075
Filing date26/03/2020
Country/TerritoryInternational Bureau of the World Intellectual Property Organization (WIPO)
Priority date01/04/2020
Priority numberEP20200167496
Publication statusPublished - 7 Oct 2021


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