Traction group for actuator of e.g. motor vehicle seat, has switching stage, which is connected with control device over control line, where stage has different switching conditions and outputs

摘要

The group has an electronic modulation stage (22) with an input to which supply voltage is provided. A switching stage (30) switches the modulated supply voltage on the individual electric motors. The input (32) of the switching stage is connected with the output (26) of the modulation stage. The switching stage is connected with a control device (36) over a control line. The stage has different switching conditions and outputs. An electric motor is attached at each output.