Motor driving device and control method for motor driving device
AssigneesKabushiki Kaisha Toshiba, Toshiba Electronic Devices & Storage Corporation
InventorKatsumasa Tanaka
Life of this patent
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Abstract
A motor driving device according to embodiments includes a driving circuit, a controller, and a mask processor. The driving circuit switches, a voltage applied to a motor, according to a switching operation by plural switching elements, for a first switching operation and a second switching operation, and to control driving of the motor. The controller controls the driving circuit on the basis of timing when an electric current flowing to the motor exceeds a predetermined current value. The mask processor sets a predetermined mask time in the switching operation by the control of the driving circuit and enables a change of the predetermined mask time on the basis of at least one of a power supply voltage and the predetermined current value.
Claims20
A motor driving device comprising:
- a driving circuit configured to switch a voltage applied to a motor, according to a switching operation by plural switching elements, for a first switching operation and a second switching operation, and to control driving of the motor;
- a controller configured to control the driving circuit on the basis of timing when an electric current flowing to the motor exceeds a predetermined current value;
- and
- a mask processor configured to set a predetermined mask time in the switching operations by the control of the driving circuit, wherein
- the mask processor configured to enable a change of the predetermined mask time on the basis of at least one of the voltage and the predetermined current value.
A control method for a motor driving device including a driving circuit switch a voltage applied to a motor, according to a switching operation by plural switching elements, for a first switching operation and a second switching operation, and to control driving of the motor,
- the control method comprising:
- setting a predetermined mask time for disabling noise that occurs in the switching operations of the driving circuit;
- and
- controlling the driving circuit on the basis of the predetermined mask time;
- wherein
- in the setting the predetermined mask time, the predetermined mask time is set to be changeable on the basis of at least one of the voltage and a predetermined current value.
Dependencies are inferred from the claim text.