CPC Subgroup
H02J 7/16 Regulation of the charging current or voltage by variation of field
Full Title
Circuit arrangements for charging or discharging batteries or for supplying loads from batteries > for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle > Regulation of the charging current or voltage by variation of field
8 direct subcodes
Child Classifications
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- H02J 7/18 due to variation of ohmic resistance in field circuit, using resistance switching in or out of circuit step by step
- H02J 7/20 due to variation of continuously variable ohmic resistor
- H02J 7/22 due to variation of make-to-break ratio of intermittently-operating contacts, e.g. using Tirrill regulator
- H02J 7/24 using discharge tubes or semiconductor devices
- H02J 7/26 using magnetic devices with controllable degree of saturation
- H02J 7/28 using magnetic devices with controllable degree of saturation in combination with controlled discharge tube or controlled semiconductor device
- H02J 7/30 using armature-reaction-excited machines