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
H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from AC mains by converters
H02J7/04—Regulation of charging current or voltage
H02J7/06—Regulation of charging current or voltage using discharge tubes or semiconductor devices
H02J7/08—Regulation of charging current or voltage using discharge tubes or semiconductor devices using discharge tubes only