Motor stop control device for gaming machine and gaming machine with the same
View Patent ↗In the gaming machine, when the motor drive instruction to drive the motor occurs based on an instruction from an external, a constant voltage is applied to the motor and the motor is driven through the motor drive circuit 39 . And when the excitation current value flowing in the motor becomes the first current value based on the constant voltage applied to the motor through the motor drive circuit 39 , the voltage with on-time and off time is repeatedly applied to the motor through the motor drive circuit 39 . Further, when the rotation speed of the motor becomes constant based on the voltage with on-time and off-time applied through the motor drive circuit 39 , the constant voltage is applied to the motor based on the motor stop instruction through the motor drive circuit 39 , thereby the motor is stopped.
1. A motor stop control device for a gaming machine comprising a motor as a drive source of a reel on which a plurality of symbols are formed, wherein the motor stop control device stops the motor based on a motor stop instruction, the motor stop control device further comprising:
a motor drive device for driving the motor by applying a constant voltage to the motor based on a motor drive instruction;
a voltage applying device for applying a voltage with on-time and off-time to the motor when an excitation current value flowing in the motor reaches to a predetermined first current value baed on the constant voltage applied to the motor through the motor drive device; and
a motor stop device for stopping the motor by aplying the constant voltage to the motor based on the motor stop instruction when a rotation speed of the motor becomes constant while the voltage with on-time and off-time is applied to the motor by the voltage applying device.
2. The motor stop control device according to claim 1 , further comprising:
a threshold change device for changing a threshold from the predetermined first current value to a predetermined second current value based on the motor stop instruction;
wherein the predetermined second current value is set so as to become larger than a maximum current value capable of flowing in the motor.
3. The motor stop control device according to claim 2 , wherein the maximum current value larger than the predetermined first current value flows in the motor when the constant voltage is applied to the motor through the motor stop device.