| 摘要 |
PURPOSE: A vehicle window switch with a current leakage preventing device is provided to reduce stresses by preventing excessive current to a microcontroller. CONSTITUTION: A vehicle window switch(400) consists of a microcontroller(100) and a current leakage preventing unit(200). The microcontroller controls opening and closing of a vehicle window. The vehicle window switch turns on/off electric incoming signals to the microcontroller. The current leakage preventing unit stops any leakage current to the microcontroller even a operating switch(300) is off. The current leakage preventing unit recognizes the current incoming signals to the microcontroller when the operating switch is on. The current leakage preventing unit is made up of a transistor that is connected between a power supplier and a grounding conductor. |
