Dirk Lamprecht

Vorrichtung zur Ermittlung einer Drehrate

Device for determining the rotational speed

Electric power tool and method for operating same

Elektronisch kommutierter Elektromotor mit einer Notlaufeigenschaft

Method and Circuit Arrangement for Determining the Rotor Position of an Ec Motor in the Standstill State

ELECTRONICALLY COMMUTATED ELECTRIC MOTOR HAVING EMERGENCY RUNNING PROPERTIES

Electric machine tool operating method, involves driving electric machine tool by electric motor, where connection of battery unit is made to energize motor that is interrupted upon identification of blocking case

Method for determining position of rotor of electrically commuted external combustion engine, involves determining two rise times of phase currents till reaching predetermined threshold values in unsaturated condition

Electric machine tool and method for operating the latter

Phase current determining method for synchronous machine of drive system in e.g. motor vehicle, involves calculating phase voltage based on intermediate circuit voltage at input side of converter and based on control signal