ELECTRONIC SCALES WITH PROTECED LEVER SYSTEM

Electronic weighing device with lever system protection, where the lever system consists of a comparator circuit and a blocking circuit, characterized in that the blocking circuit (UB), connected at the supply input to the voltage source of a servomotor (Vs), has its output connected to the base of a transistor (Tr) in the supply circuit (UZ) of the servomotor, while the emitter of the transistor (Tr) is connected to the voltage source of the servomotor (Vs), and the controlling input of the blocking circuit (UB) is connected to the output of the comparator circuit (UK), whose input is connected to the voltage source of a regulator (VR).