| 摘要 |
<p>A control device for an electric power steering apparatus has a motor (3) which applies a steering assist force and a driving control device which drives the motor (3), the driving control device has a gate driving circuit (120) which drives a motor driving bridge circuit (110) based on a command from a computer (100), the power supply portion of the gate driving circuit has a voltage limit unit, and there is provided with a function of driving the lower side driving elements of the motor driving bridge circuit when the voltage limit unit detects the abnormally high voltage of the power supply voltage.</p> |
