ALTERNATOR

The rectifier of an inventive AC generator comprises a first heat sink; first unidirectional conduction elements arranged at intervals on the surface of the first heat sink; a second heat sink provided spaced apart from the first heat sink, second unidirectional conduction elements arranged at intervals on the surface of the second heat sink; and a circuit board having terminals connected to constitute a bridge circuit with regard to the first unidirectional conduction elements and the second unidirectional conduction elements. The first terminals of the first unidirectional conduction elements and the second terminals of the second unidirectional conduction elements are connected contiguously on the same surface of the terminals, respectively, to constitute terminal side joints. Consequently, connection workability is enhanced between the terminals and the first terminals of the first unidirectional conduction elements and the second terminals of the second unidirectional conduction elements.