Apparatus for driving electrical loads provided at a car

摘要

An apparatus for driving electrical loads of a vehicle comprising load switches. Each of the load switches directs a start or a stop of each of the electrical loads. A memory stores a power feeding increase rate for a corresponding one of the electrical loads at a state transition of each of the load switches from an OFF to an ON state. A pair of transistors feeds power to the corresponding one of the electrical loads from a battery on receiving a load driving signal. A central process unit sends the load driving signal to the pair of transistors so that power is fed to the corresponding one of the electrical loads with a power feeding increase rate at the state transition of one of the load switch from an OFF state to an ON state. Thus, because the power fed to the electrical load gradually increases upon starting of the electrical load, AC power does not rapidly increase the power generation, and this prevents engine speed from rapidly increasing.