VOLTAGE CONTROLLER FOR ALTERNATOR OF VEHICLE

摘要

PURPOSE: To provide an alternator voltage controller of a vehicle, which can eliminate delayed response to the engine controller to appropriately control the engine. CONSTITUTION: A switch 108 is connected to the generator 10 driven by the engine to charge the battery 5 to supply or cut off the current to the field coil 2 of the generator 10 and a monitor terminal (RF terminal) is provided to monitor the conduction current to the field coil 2. The monitor terminal (RF terminal) outputs a signal of the conduction current to the field coil 2 in a steady state when the voltage of the generator 10 is as high as predetermined or higher and outputs a generator voltage fluctuation signal when the voltage is in transient lower than predetermined.