(EP932928-A1)      The voltage conversion device, especially for cars, has at least two parallel voltage converters with a common input through which the voltage is fed that is to be converted and a common output where the converted voltage can be picked off. The voltage converters are part converters which are controlled synchronously and sequentially by a synchronising device.    A number of part converters are provided which each comprise a controller and a power part which are directly connected and wired so that the part converters are in parallel. One part converter has a controller with separate power part. Others have a control unit that can be influenced by the controller with further power parts.    ADVANTAGE -   Low supply current loading with minimal EM radiation and voltage oscillation.    (US6088248-A)      The voltage conversion device, especially for cars, has at least two parallel voltage converters with a common input through which the voltage is fed that is to be converted and a common output where the converted voltage can be picked off. The voltage converters are part converters which are controlled synchronously and sequentially by a synchronising device.    A number of part converters are provided which each comprise a controller and a power part which are directly connected and wired so that the part converters are in parallel. One part converter has a controller with separate power part. Others have a control unit that can be influenced by the controller with further power parts.    ADVANTAGE -   Low supply current loading with minimal EM radiation and voltage oscillation.    (JP2000515720-W)      The voltage conversion device, especially for cars, has at least two parallel voltage converters with a common input through which the voltage is fed that is to be converted and a common output where the converted voltage can be picked off. The voltage converters are part converters which are controlled synchronously and sequentially by a synchronising device.    A number of part converters are provided which each comprise a controller and a power part which are directly connected and wired so that the part converters are in parallel. One part converter has a controller with separate power part. Others have a control unit that can be influenced by the controller with further power parts.    ADVANTAGE -   Low supply current loading with minimal EM radiation and voltage oscillation.