Patent ID: 11858128
Assignee: AMAZON TECHNOLOGIES, INC.
Field: Handling (Mechanical engineering)
Classification: CPC B  H | IPC B  H

Claim 3:
4. A device comprising:
a power source having a first terminal and a second terminal;
a motor comprising at least a first terminal and a second terminal, wherein the second terminal is connected to the second terminal of the power source;
a first circuit having an input that is connected to the first terminal of the power source and an output that is connected to the first terminal of the motor, wherein the first circuit operates responsive to a first signal at the input to disconnect the first terminal of the motor from the first terminal of the power source;
a second circuit that, responsive to the first signal, dissipates power produced by motion of the motor; and
a third circuit comprising:
a relay comprising:
a relay input connected to the output of the first circuit;
a first contact connected to a first fuse terminal of a first fuse, wherein a second fuse terminal of the first fuse is connected to the second terminal of the power source; and
a second contact connected to the first terminal of the motor; and

wherein when a back electromotive force (EMF) produced by the motor is below a first threshold value, the third circuit establishes a connection between the terminals of the motor.