| 摘要 |
The invention relates to a power supply device of a dual voltage electric system of a motor vehicle. According to the invention, a dual voltage electric system of a motor vehicle is provided, that supplies a first and a second voltage level which differ from the reference voltage, wherein power is supplied from at least one electric energy accumulator (12, 24). At least one transformer for transforming both voltage levels (18, 28) is also provided. Supply means (34, 31, 32, 36, 20) are further provided for additional supply of the energy accumulator (12, 24).
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