Method to regulate the exciting current of an automotive vehicle generator using digital processing and regulator device for carrying out this method

摘要

The method employs a regulator (2) supplying current from a control circuit (7) to the excitation winding (4) of the alternator (1). The rectified voltage from a diode bridge (5) is digitised (10) along with the reading of a temperature sensor (11) on the alternator or battery. Data calculated by the microprocessor (8) are loaded into an interrupt-generating delay circuit (12). The sampling is triggered towards the end of each cycle and the measured value is compared with a computed reference. The result determines the duration of the next connection of the battery to the excitation winding.