H ELECTRICITY
H02 GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
H02K DYNAMO-ELECTRIC MACHINES
H02K11/00 Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
H02K11/20 for measuring, monitoring, testing, protecting or switching
H02K11/21 Devices for sensing speed or position, or actuated thereby
H02K11/215 Magnetic effect devices, e.g. Hall-effect or magneto-resistive elements