H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
H02J7/14—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle
H02J7/16—Regulation of the charging current or voltage by variation of field