| 摘要 |
An intermittent drive controller for a windshield wiper having a drive circuit for driving a wiper motor, a drive command circuit connected to the drive circuit by way of a semiconductor device, and a braking circuit related to the above circuits. When a wiper switch is operated, the wiper motor is driven, thereby starting the wiping movement of the wiper. When the wiper motor pauses, the motor switch outputs a pause signal, thereby instantly stopping the wiper motor. On the other hand, after a certain period of time has passed, a new drive command signal is supplied from the drive command circuit to the drive circuit, thereby driving the wiper motor again, thus effecting the intermittent drive control. This arrangement employs no electromagnetic relays so that it is free from noise which may generate when the wipe motor starts or stops and from malfunctions due to imperfect contact, thus improving the durability. Also it can positively control the wiper motor by braking the wiper at the moment in which the motor pauses.
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