| 摘要 |
PURPOSE:To suppress the noises caused by the switching of a current flowing through a signal line connecting an ECU and a load in a vehicle-mounted load controlling device. CONSTITUTION:A load controlling device 1 is generally constituted by connecting a control device (ECU) 2 and a load 3 with a control signal line L1. The ECU 2 is constituted by providing a central processing unit(CPU) 6, an input interface 5 and a constant voltage circuit 4. The load 3 is constituted by providing a load element 8 and a driving element 7. The driving element 7, which outputs the driving current into the load element 8, is provided as a unitary body in the load 3. Therefore, the control signal flowing through the control signal line L1 from the ECU 2 can be the weak current of several mA to ten odd mA Thus, the noises generated by the switching of the control current can be suppressed. |
