Patent ID: 6707275
Filing Date: 2004-03-16
Classification: H02J,H02P,H03K

Abstract:
A control apparatus for an automotive generator having a field coil, comprising:a switching device for turning on and off current supply to the field coil of the automotive generator; a flywheel diode connected in parallel with the field coil; a voltage detection circuit for outputting an instruction signal to turn on and off the switching device so that an output voltage of the automotive generator is regulated to a specified adjusted voltage; and a drive circuit for driving the switching device, when the instruction signal instructing the switching device to turn on is input from the voltage detection circuit, by only flowing a specific current to a control terminal of the switching device to raise a control terminal voltage until a terminal voltage of the field coil exceeds a specified value and applying a voltage higher than the output voltage of the automotive generator to the control terminal after the terminal voltage of the field coil exceeds the specified value.