APPARATUS FOR PREVENTING IN MOTOR`S OVERLOAD

摘要

An apparatus for preventing overload of a motor is provided to protect the motor from burning out due to overload by supplying operation and stop signals through comparison between sensed voltage of the motor and reference voltage. A motor(100) performs input and output of paper money. A driving unit(110) supplies a driving signal to the motor according to a control signal of a control unit(130). An amplifying circuit unit(120) amplifies the control signal supplied to the driving unit. A motor voltage sensing unit(140) senses operating voltage of the motor to supply the sensed voltage to the control unit. A reference voltage supply unit(150) supplies reference voltage corresponding to the sensed voltage of the motor voltage sensing unit to the control unit. The control unit compares the reference voltage with the operating voltage to output a control signal requesting an operation stop of the motor to the driving unit when the operating voltage is higher than the reference voltage.