Motor burnout prevention circuit when motor is constrained

摘要

[0001] The present invention relates to a motor burn-out prevention circuit for restraining a motor, and more particularly, to a motor-restraining circuit for restraining a current flowing in a motor when a current flowing in the motor is detected by a current detection unit, When the rotation of the motor is restricted due to an environmental problem around the motor or an overload state, an overcurrent flows to the coil of the motor and the motor is eventually burned. If the motor is burned out in such a manner, there is a case where the mechanical equipment using the motor as a power source in proportion to the capacity of the motor sometimes causes a great loss. In case of the above-mentioned problem, in order to protect the motor The motor current detection unit detects the current flowing in the coil of the motor and constitutes a circuit for limiting the current flowing through the coil of the motor. And by lowering the electric potential of the current command by the current command limit lateral direction, even if the motor is constrained by the surrounding circumstances, the motor can be driven by adjusting the current according to the degree of confinement, The current flowing through the winding of the motor is minimized to protect the motor.