Patent attributes
A vehicle generator control device includes a transistor chopper type exciting circuit for supplying an excitation current to a vehicle-mounted electric generator drivable by an engine of the motor vehicle. The exciting circuit comprises a bridge circuit having a first pair of opposing arms formed of respective power transistors and a second pair of opposing arms formed of respective diodes. One of the power transistors is connected to a ground potential of the vehicle-mounted electric generator and the other power transistor is connected to an output terminal of the vehicle-mounted electric generator. When the engine is in a non-operating state, the one transistor is set in an on state and the other power transistor is set in an off state.
