Phase-angle offsettng converter to minimize damaging effects of sudden phase changes due to network disturbance
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Patentanmeldung › Jahr der Anmeldung 17.10.2007
Fortmann, Jens; Letas, Heinz-Hermann. Patentanmeldung "Phase-angle offsettng converter to minimize damaging effects of sudden phase changes due to network disturbance". US 8378514 B2. (17.10.2007)