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AssigneeLeopold Kostal GmbH & Co. KG
InventorsPatrick Achtzehn, Jan Korte, Jens Czichon
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A bidirectional DC converter assembly includes two serially-arranged DC/DC converters. The first converter is a buck (or a buck/boost) converter to be connected to a high-voltage (HV) level of an electric vehicle. The second converter is a series resonant switching converter to be connected to a low-voltage (LV) of the vehicle. The series resonant switching converter of the second converter is formed by a DC/AC converter, a transformer, and an AC/DC converter, which are serially arranged in the stated order between the first converter and the LV level. A bidirectional peak current controller is associated with the first converter. The peak current controller is realized by a current measurement at an inductor of the first converter. The peak current controller uses the coil current value, which is modified with an offset value and thus has a constant sign, as a set point in controlling the first converter.
A bidirectional DC/DC converter assembly for an electric vehicle having a high-voltage (HV) level and a low-voltage (LV) level, the bidirectional DC/DC converter assembly comprising:
Dependencies are inferred from the claim text.