Motor control circuit and medical device

A motor control circuit, comprising:

• a switch circuit section comprising at least one switch triode and configured such that a power supply supplies power to a motor through the at least one switch triode to drive the motor to output a motion;
• a switch drive circuit section configured to control the switch triode in the switch circuit section to be turned on or off;
• and
• a limit switch section comprising:
• at least one limit switch configured to be associated with at least one limit position of the motion output by the motor so that the motor generates a feedback signal when outputting the motion to the limit position in a direction, wherein the feedback signal is received by the switch drive circuit section so that the switch drive circuit section controls the switch triode correspondingly associated with the limit switch to be turned off, to enable the motor to stop the motion output;
• and
• a direction control circuit section coupled between the switch circuit section and the motor, and configured to control the direction of the motion output by the motor by switching on or off between the switch triode in the switch circuit section and the motor.