Electric drive unit for a water-bearing domestic appliance

A domestic appliance, comprising:

• an electric drive unit including:
• a converter to provide a supply voltage from a multiphase voltage system;
• a control device to control the converter in order to operate a first electric motor connected to the multiphase voltage system;
• a load-current-carrying DC link arranged upstream of the converter;
• a connection device coupled to the control device;
• and
• an electrical device connected to one of at least part of the multiphase voltage system and the load-current-carrying DC link via the connection device, the electrical device a second electric motor electric motor structured to operate at least one of a hydraulic pump, a blower, and a valve.

A power board for a water-bearing domestic appliance, comprising:

• a converter to provide a supply voltage from a multiphase voltage system, wherein the converter comprises first, second, and third power stages connected in parallel across a voltage bus and ground, wherein each power stage includes first and second switching devices connected in series at respective power electrodes, and wherein each power stage further includes an output node between respective first and second based switching devices for providing a power signal and wherein each of said first and second switching devices comprises at least two control terminals;
• a control device to control the converter through the control terminals in order to operate a first electric motor connected to the multiphase voltage system;
• a load-current-carrying DC link arranged upstream of the converter and coupled to the voltage bus;
• a connection device coupled to the control device;
• and
• an electrical device connected to one of at least part of the multiphase voltage system and the load-current-carrying DC link via the connection device, the electrical device having a second electric motor structured to operate at least one of a hydraulic pump, a blower, and a valve;
• wherein a control logic at the control device is capable of connecting the first motor and the second motor to the multiphase voltage system.