| 摘要 |
PURPOSE: An actuator protecting apparatus is provided to prevent the damage of a gear and an actuator by detecting the change of feedback voltage indicating the position of the actuator. CONSTITUTION: A signal detecting unit(10) detects forward or backward limit signal generated depending on the stroke of an actuator to adjusting an output according to the forward or backward limit signal. A switch(20) transmits a driving instruction of the actuator by receiving a state value outputted from the signal detecting unit(10) to change the direction of the switch. A normal instruction returning unit(30) detects the change of feedback voltage representing the position of the actuator where the operating direction of the actuator changes according to the change of the switch(20).
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