| 摘要 |
PURPOSE:To provide the accessory controller for vehicle which avoids the problem of higher harmonic wave noise to be generated in the case of duty ratio control for enabling high-performance power control. CONSTITUTION:The accessory controller to control an accessory 16 at a vehicle equipped with a receiver 10 for receiving signal radio waves and an accessory 16 to be driven by power is provided with a power duty control circuit 14 for generating arbitrary power corresponding to high-frequency duty ratio control and a power ON/OFF control circuit 15 for turning on or off the prescribed power in a long cycle, while the receiver 10 receives signal radio waves, the power ON/OFF control circuit 15 is operated and while no signal radio wave is received, the power duty control circuit 14 is operated. |
