Showing papers by "Frank Jeske published in 2004"

Speed control method and device for a two-pulse motor operating with auxiliary torque

Abstract: The invention relates to a method for rotational speed control of a two-pulse electronically switched motor which operates with an auxiliary reluctance torque (fig. 13:MR) and comprises at least one stator winding strand (32), a rotor (38) and a control unit (76) for controlling the motor (30) at a desired rotational speed (nsoll; t s). The inventive method consists in continuously collecting the characteristic value of the rotor (38). Above a determined minimum rotational speed (+NMIN, -NMIN), the operation of the motor (30) is adjusted to an independent value (BW) of a desired rotational speed. Above said minimum rotational speed (+NMIN, -NMIN), the operation of the motor (30) is adjusted to a value (BW) which is a difference function between the desired rotational speed (nsoll; t s) and an actual rotational speed (n; T HALL). A corresponding motor is also disclosed.

Method of regulating the rotation rate of a two stroke electronic commutator motor with reduction torque such as for driving a computer fan in different rate ranges

Abstract: The method regulates the rotation rate of a commutator motor having a stator winding and a rotor and a regulator which generates a target value to regulate the motor to a value characteristic of a desired rotation rate. The method involves continually detecting a value characteristic of the actual rotation rate of the rotor. In a lower rotation rate range between zero and a predetermined minimum rotation rate, the motor is driven by a current independent of the desired rotation rate. Outside of this range the motor is driven with a target value for the current which is a function of the regulation difference between a value characterizing the desired rotation rate and a value characterizing the actual rotation rate. Independent claims also cover a motor regulated using the method.