Heating power switching control in domestic appliance - uses micromotor actuated only on reception of signal detecting appliance operating conditions

摘要

The appliance has a programming device with a micromotor or a coil with a thermostatic action which is supplied with voltage. Heating power switching can be performed only in certain operational conditions of the appliance. The supply of the micromotor or coil (1) in the programming device is controlled by an electronic interruptor whose operation depends on delivery of a signal of a predetermined amplitude for detection of a physical variable depending on the appliance operating conditions. The system contains a full-wave rectifier (7) and a transistor (12). There is a detector element (3) and a further detector (4).