Patent ID: 9742253
Date: 2017-08-22
CPC Classifications: B60L,B65G,H02K,H02P,Y02P,Y02T

Claim:
1. A power supply and control circuit for a motor-driven conveying roller, where the conveying roller incorporates a hollow body of the roller rotating on an axis, in which hollow body an electric motor is incorporated and coupled to the hollow body of the roller by elements for driving the roller body and for the transfer of torque, in which body a cable is also incorporated with the respective terminals, connected to a connector, from the coils of the electric motor, and with one first potential terminal for supplying power to the included position sensors with signal outputs that the number of position sensors with signal outputs may be at least one, which position sensors are supplied with power from the first potential terminal, characterized by that a second potential ( 22 ), generated by an additional circuitry ( 12 ), connected to at least one of the coils ( 8 ) of the electric motor ( 4 ) with the objective to provide for the second potential ( 22 ) and the output signals ( 11 ) from the position sensors ( 10 ) are connected to a digital encoding device ( 17 ), supplied with power from the first ( 9 ) and the second potential ( 22 ), which digital encoding device ( 17 ) has one common encoded signal output ( 19 ), connected to the first potential ( 9 ) used for supplying power to the position sensors ( 10 ), and that the electric characteristics of the first potential ( 9 ) are changed by the encoded signal.