In a stepper motor the detente torque means
A. maximum of the static torque with the phase winding excited.
B. minimum of the static torque with the phase winding unexcited.
C. minimum of the static torque with the phase winding excited.
D. maximum of the static torque with the phase winding unexcited.
Answer: B
Share your understanding of this question with the correct explanation.
in a stepper motor, the detent torque refers to the minimum static torque that exists when the phase winding of the motor is unexcited. The detent torque is the holding torque that keeps the motor in position when no current is flowing through the motor windings. It is the torque required to overcome the residual magnetic forces in the motor’s magnetic circuit.
Therefore, option B, minimum of the static torque with the phase winding unexcited, is the correct answer.