Motor driving device, and control method of motor driving device

Abstract

A data processing apparatus that controls an inverter circuit for a motor. The data processing apparatus including a control unit that monitors a potential of a power supply terminal to supply power to the inverter circuit, and obtains an information indicative of an amount of a driving current flowing in a motor winding of the motor in response to an amount of a current flowing in a resistive element included in the inverter circuit, to control a driving of the motor. The control unit makes the motor winding and the resistive element form a loop circuit, when the potential of the power supply terminal exceeds a predetermined value.

1 . A data processing apparatus that controls an inverter circuit for a motor, the data processing apparatus comprising:
 a control unit that monitors a potential of a power supply terminal to supply power to the inverter circuit, and obtains an information indicative of an amount of a driving current flowing in a motor winding of the motor in response to an amount of a current flowing in a resistive element included in the inverter circuit, to control a driving of the motor,   wherein the control unit makes the motor winding and the resistive element form a loop circuit, when the potential of the power supply terminal exceeds a predetermined value.   
     
     
         2 . The data processing apparatus according to  claim 1 , wherein the control unit generates pulse signals for operating the inverter circuit by a pulse width modulation control, and outputs the pulse signals to gates of transistors included in the inverter circuit, respectively. 
     
     
         3 . A control method for a data processing apparatus that controls an inverter circuit including a drive unit coupled to a power supply terminal and a motor winding, and a resistive element, the control method comprising:
 monitoring a potential of the power supply terminal to supply power to the inverter circuit;   obtaining an information indicative of an amount of a driving current flowing in the motor winding of a motor in response to an amount of a current flowing in the resistive element, to control a driving of the motor; and   making the motor winding and the resistive element form a loop circuit, when the potential of the power supply terminal exceeds a predetermined value.   
     
     
         4 . The control method according to  claim 3 , further comprising:
 generating pulse signals for operating the inverter circuit by a pulse width modulation control; and   outputting the pulse signals to gates of transistors included in the inverter circuit, respectively.