| 摘要 |
PURPOSE:To reduce the capacity of a fuse terminal by preventing the breakage of a wiper motor due to overcurrent and reduce the size of the electric wire for a motor conduction passage, in a wiper controller. CONSTITUTION:When a wiper motor 11 is locked by an obstacle, etc., each of both edge electric voltage of detection resistors RS1-RS3 exceeds a standard voltage because of the overcurrent due to the lock of the motor 11, and the overcurrent is detected by comparators 21-23, and FETs 18-29 are turned-OFF by the L-outputs of the first and second latch circuits 27 and 32, and the electric conduction passage of the motor 11 is cut off. |
