H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
H02K—DYNAMO-ELECTRIC MACHINES
H02K47/00—Dynamo-electric converters
H02K47/02—AC/DC converters or vice versa
H02K47/08—Single-armature converters
H—ELECTRICITY
H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
H02M1/00—Details of apparatus for conversion
H02M1/20—Contact mechanisms of dynamic converters
H02M1/22—Contact mechanisms of dynamic converters incorporating collectors and brushes