Domestic appliance comprising a measuring unit and method for transmitting a measurement variable

摘要

A method and apparatus for transmitting a measurement variable that is detected by a measuring unit and transmitted via a data transmission channel to a main control unit of a domestic appliance that is isolated from the measuring unit is disclosed. The measurement control unit is coupled to the main control unit via a data transmission channel through which a measurement variable detectable by the measuring unit can be transmitted to the main control unit. The data transmission channel is a line having a protective impedance.

主权项

1. A domestic appliance comprising:
a main control unit susceptible to mains voltage; a measurement unit electrically isolated from the main control unit, the measurement unit being protectively insulated from the mains voltage supplied to the main control unit, the measurement unit having a measurement control unit; and a data transmission channel coupling said measurement control unit to the main control unit, said data transmission channel being adapted to transmit a measurement variable that can be detected by the measurement unit to the main control unit, via a line having a protective impedance providing said data transmission channel, said protective impedance providing potential isolation between the measurement unit and the main control unit, such that the mains voltage cannot be transmitted via the data transmission channel.