Patent ID: 9488233
Filing Date: 2016-11-08
CPC Classification: F16D,H01F

Claim Text:
1. A control device for an electromagnetic clutch that permits and cuts off torque transmission between a first rotary member and a second rotary member, comprising: a first switch that is connected to one end of an electromagnetic coil forming the electromagnetic clutch; a second switch that is connected to the other end of the electromagnetic coil; a first diode that allows a first current to flow from the one end of the electromagnetic coil to a power supply line connecting the second switch and a power source; a second diode that allows a second current to flow from a reference potential point to the other end of the electromagnetic coil; and a control circuit that controls an on/off state of the first and second switches; wherein the control circuit stops power supply to the electromagnetic coil by turning off both the first and second switches.